Hotsy 1800 Series User manual

OPERATOR’S MANUAL
For technical assistance or the dealer nearest you consult our web page at
www.hotsy.com
STATIONARY
ELECTRIC
8.916-831.0
8916831-1
HONEYWELL
LOHI
CHAUD!
CHAUD!

3
CONTENTS
8.916-831.0 • HOTSY STATIONARY ELECTRIC • REV. 10/13
GAS-FIRED SERIES OPTIONAL EQUIPMENT
1800 Series Draft Diverter-10" 9.801-040.0
5700 Series Draft Diverter-12" 8.717-730.0
5800 Series Draft Diverter-12" 8.717-730.0
When ordering from your dealer, please provide the following:
Model Number: ________________Date of Purchase:_________
Machine Serial Number: ________________________________
Component Part Number: _______________________________
Description: __________________________________________
The model and serial numbers will be found on a decal attached to
the pressure washer.You should record both serial number and date
of purchase and keep in a safe place for future reference.
General Safety Information........................................................................4-6
Component Identification.............................................................................. 7
Assembly ...................................................................................................... 8
Installation................................................................................................9-11
Operation .................................................................................................... 12
Cleaning Techniques & Storage.................................................................. 13
Maintenance ............................................................................................... 14
Troubleshooting .......................................................................................... 15
Warranty
IMPORTANT
If the pressure washer demonstrates other symptoms or the corrective actions
listed do not correct the problem, contact the local authorized Hotsy Service
Center. The Hotsy Service Center can be identified by visiting
www.hotsy.com.

8.916-831.0 • HOTSY STATIONARY ELECTRIC • REV. 10/13
OPERATOR’S MANUAL PRESSURE WASHER
4
INTRODUCTION & IMPORTANT SAFETY INFORMATION
Thank you for purchasing this Pressure Washer.
We reserve the right to make changes at any time
without incurring any obligation.
Owner/User Responsibility:
The owner and/or user must have an understanding of
the manufacturer’s operating instructions and warnings
before using this pressure washer.Warning information
should be emphasized and understood. If the operator
is not fluent in English, the manufacturer’s instruc-
tions and warnings shall be read to and discussed
with the operator in the operator’s native language by
the purchaser/owner, making sure that the operator
comprehends its contents.
Owner and/or user must study and maintain for future
reference the manufacturers’ instructions.
The operator must know how to stop the machine
quickly and understand the operation of all controls.
Never permit anyone to operate the engine without
proper instructions.
SAVE THESE INSTRUCTIONS
This manual should be considered a permanent
part of the machine and should remain with it if
machine is resold.
When ordering parts, please specify model and
serial number. Use only identical replacement parts.
This machine is to be used only by trained operators.
IMPORTANT SAFETY
INFORMATION
WARNING: To reduce the risk of injury, read op-
erating instructions carefully
before using.
1. Read the owner's manual
thoroughly. Failure to fol-
low instructions could
cause malfunction of the
machine and result in
death, serious bodily in-
jury and/or property damage.
2. Know how to stop the machine and bleed pressure
quickly. Be thoroughly familiar with the controls.
3. Stay alert — watch what you are doing.
4. Do not replace LP tank while machine is running.
5. All installations must comply with local codes.
Contact your electrician, plumber, utility company
or the selling distributor for specific details. If your
machine is rated 250 volts or less, single phase will
be provided with a ground fault circuit interrupter
(GFCI). If rated more than 250 volts, or more than
single phase this product should only be connected
to a power supply receptacle protected by a GFCI.
DANGER: Improper connection of the equipment-
grounding conductor can result in a risk of elec-
trocution. Check with a qualified electrician or
service personnel if you are in doubt as to whether
the outlet is properly grounded. Do not modify the
plug provided with the product - if it will not fit the
outlet, have a proper outlet installed by a qualified
electrician. Do not use any type of adaptor with
this product.
WARNING
KEEP WATER
SPRAY AWAY FROM
ELECTRICAL WIRING.
WARNING: Keep wand, hose,
and water spray away from elec-
tric wiring or fatal electric shock
may result.
6. To protect the operator from
electrical shock, the machine
must be electrically grounded.
It is the responsibility of the
owner to connect this ma
chine to a UL grounded receptacle of proper volt-
age and amperage ratings. Do not spray water
on or near electrical components. Do not touch
machine with wet hands or while standing in water.
Always disconnect power before servicing.
RISK OF EXPLOSION:
IF GAS SMELL
PRESENT TURN OFF
SUPPLY
WARNING
WARNING: Flammable liquids
can create fumes which can
ignite, causing property damage
or severe injury.
WARNING: Risk of explosion —
Operate only where open flame
or torch is permitted.
RISK OF FIRE.
DO NOT ADD FUEL
WHEN OPERATING
MACHINE.
WARNING
WARNING: Risk of fire — Do not
change tanks when the product
is operating or still hot.
WARNING: Use vapor fuel only.
7. Oil burning appliances shall
be installed only in locations
where combustible dusts and
flammable gases or vapors
are not present. Do not store
or use gasoline near this machine.
8. Keep operating area clear of all persons.
WARNING
USE PROTECTIVE
EYE WEAR
AND CLOTHING
WHEN OPERATING
THIS EQUIPMENT.
WARNING: High pressure spray
can cause paint chips or other
particles to become airborne
and fly at high speeds.To avoid
personal injury, eye, hand and
foot safety devices must be
worn.
9. Eye, hand, and foot protec-
tion must be worn when using
this equipment.
READ OPERATOR’S
MANUAL THOROUGHLY
PRIOR TO USE.

8.916-831.0 • HOTSY STATIONARY ELECTRIC • REV. 10/13
5
PRESSURE WASHER OPERATOR’S MANUAL
WARNING
PROTECT FROM
FREEZING
WARNING: Protect machine from
freezing.
13. To keep machine in best
operating conditions, it is
important you protect machine
from freezing.Failure to protect
machine from freezing
could cause malfunction of the
machine and result in death,
serious bodily injury, and/or property damage. Fol-
low storage instructions specified in this manual.
14. Inlet water must be clean fresh water and no hotter
then 90°F.
WARNING
RISK OF
ASPHYXIATION.
USE THIS PRODUCT
ONLY IN A WELL
VENTILATED AREA.
WARNING: Risk of asphyxiation.
Use this product only in a well
ventilated area.
15. Avoid installing machines
in small areas or near ex-
haust fans. Adequate ox-
ygen is needed for com-
bustion or dangerous car-
bon monoxide will result.
16. Manufacturer will not be liable for any changes
made to our standard machines or any components
not purchased from us.
17. The best insurance against an accident is precau-
tion and knowledge of the machine.
WARNING
RISK OF INJURY
FROM FALLS WHEN
USING LADDER.
WARNING: Be extremely careful
when using a ladder, scaffolding
or any other relatively unstable
location. The cleaning area
should have adequate slopes
and drainage to reduce the pos-
sibility of a fall due to slippery
surfaces.
18. Do not overreach or stand on unstable support.
Keep good footing and balance at all times.
19. Do not operate this machine when fatigued or under
the influence of alcohol, prescription medications,
or drugs.
20. Follow the maintenance instructions specified in
the manual.
21. Do not replace LP tank while machine is running.
Serious injury could result.
WARNING: Use vapor fuel only.
22. The LP models are designed to run on vapor pro-
pane fuel. Do not use liquid fuel. Have a qualified
serviceman install and service your equipment.
IMPORTANT SAFETY INFORMATION
WARNING
EAR PROTECTION
MUST BE WORN
WARNING: This machine ex-
ceeds 85 db appropriate ear
protection must be worn.
CAUTION: Hot discharge fluid.
Do not touch or direct discharge
stream at persons.
WARNING: This machine pro-
duces hot water and must have
insulated components attached
to protect the operator.
WARNING
RISK OF INJURY.
HOT SURFACES
CAN CAUSE BURNS
WARNING: Risk of injury. Hot
surfaces can cause burns. Use
only designated gripping areas
of spray gun and wand. Do not
place hands or feet on non-in-
sulated areas of the pressure
washer.
10. To reduce the risk of injury, close supervision is
necessary when a machine is used near children.
Do not allow children to operate the pressure
washer. This machine must be attended during
operation.
TRIGGER GUN KICKS
BACK - HOLD WITH
BOTH HANDS
WARNING
WARNING: Grip cleaning wand
securely with both hands before
starting. Failure to do this could
result in injury from a whipping
wand.
11. Never make adjustments on
machine while in operation.
12. Be certain all quick cou-
pler fittings are secured be-
fore using pressure washer.
RISK OF INJECTION
OR SEVERE INJURY
TO PERSONS. KEEP
CLEAR OF NOZZLE.
WARNING
WARNING: High pressure devel-
oped by these machines will
cause personal injury or equip-
ment damage. Keep clear of
nozzle. Use caution when oper-
ating. Do not direct discharge
stream at people, or severe in-
jury or death will result.
HOT DISCHARGE
FLUID: DO NOT
TOUCH OR DIRECT
DISCHARGE STREAM
AT PERSONS.

8.916-831.0 • HOTSY STATIONARY ELECTRIC • REV. 10/13
OPERATOR’S MANUAL PRESSURE WASHER
6
23. Never expose a spark or flame where there may
be unburned gas present.
24. Install the machine 18" above the floor and about
2 feet from wall providing adequate ventilation and
space.
25. When making repairs disconnect from electrical
source and shut off gas valve.
26. Install this machine on non combustible flooring.
27. Do not allow acids, caustic or abrasive fluids to pass
through the pump.
28. Never run pump dry or leave spray gun closed
longer than 1-2 minutes.
WARNING: If connection is made to portable water
supply, a back flow device must be provided.
Follow the maintenance instructions specified in
the manual.
IMPORTANT SAFETY INFORMATION
Example Of Down
Draft Diverter
For Gas Fired
Machines
8916831-4

8.916-831.0 • HOTSY STATIONARY ELECTRIC • REV. 10/13
7
PRESSURE WASHER OPERATOR’S MANUAL
HONEYWELL
LOHI
CHAUD!
CHAUD!
8916831-2
Burner
Exhaust Vent
Chemical Valve
Pump Switch
High
Pressure
Nozzle
Wand
High
Pressure
Hose
Detergent Bucket
(not included)
Thermal Rupture
Disk
Burner Switch
Fresh Water
Inlet
Garden Hose
(not included)
Trigger
Gun
COMPONENT IDENTIFICATION
Thermostat

8.916-831.0 • HOTSY STATIONARY ELECTRIC • REV. 10/13
OPERATOR’S MANUAL PRESSURE WASHER
8
ASSEMBLY INSTRUCTIONS
Unpacking
Unpack carefully. Wear safety glasses or goggles while
unpacking, assembling, or operating pressure washer. If
there are missing components or hidden damage, imme-
diately contact carrier concerning discrepancies.
1. Remove the two bolts that secure the pressure
washer to the pallet.
2. Remove pressure washer from pallet.
Parts Included
•Pressure Washer
•Pressure Hose
•Wand
•Trigger Gun
•Hose Hangers (2 Ea.)
•Operating Instructions and Parts Manual
•Oil Burner Manual
Tools Required
•10" Adjustable Wrenches (2 Ea.)
•Teflon Tape
Pressure Hose, Trigger Gun and Wand
1. When assembling, use teflon tape on all plumbing
connections to prevent leakage.
2. Install the pressure hose on the pressure washer as
shown in Figure 1.
3. Assemble wand components as shown in
Figure 2.
NOTE: The pressure nozzle is not to be installed at
this time.
4. Install garden hose adapter on float tank as shown
in Figure 3.
5. Make sure all plumbing connections are tight.
8916831-7
Figure 3 - Float Tank/Garden Hose Adapter
Garden Hose
(Not Included)
8916831-5
Figure 1 - Pressure Hose Installation
Pressure Hose
8916831-6
Figure 2 - Trigger Gun/Wand Assembly
Quick
Disconnect
Wand
Trigger Gun
Pressure Hose

8.916-831.0 • HOTSY STATIONARY ELECTRIC • REV. 10/13
9
PRESSURE WASHER OPERATOR’S MANUAL
INSTALLATION INSTRUCTIONS
Getting Started
IMPORTANT: Proper initial installation of equipment
will assure more satisfactory performance, longer
service life, and lower maintenance cost.
IMPORTANT: The use of a backflow preventer on
the water supply hose is recommended and may be
required by local code.
The pressure washer should be run on a level surface and
in a protected area where it is not readily influenced by
outside forces such as strong winds, freezing tempera-
tures, rain, etc. The pressure washer should be located
to assure easy access for filling of fluids, adjustments
and maintenance. Normal precautions should be taken
by the operator to prevent moisture from reaching the
pressure washer. It is recommended that a partition be
made between the wash area and the pressure washer
to prevent direct spray from the wand from coming in
contact with the pressure washer. Moisture reaching the
equipment will reduce the pressure washer’s service life.
All installations must comply with the local codes covering
such installations.
Electrical
WARNING: Make sure all switches and controls are in
the OFF position prior to connecting electrical supply.
WARNING: DO NOT stand in water while connecting
and disconnecting electrical supply.
IMPORTANT: Consult local building codes for exact
electrical requirements. Licensed contractors may
be required.
This machine is designed for connection to an overload
protected grounded circuit. It is recommended this circuit
be protected by a UL approved ground fault circuit inter-
rupter (GFCI). An electrical disconnect must be provided
in this circuit. All wiring must be of proper voltage and
amperage rating and conform to applicable codes. Re-
fer to Figure 4 for wiring connections. A hole has been
provided in the control box for attachment of 1 inch
electrical conduit.
For proper operation the motor rotation is to be counter-
clockwise as viewed looking towards the rear of the motor
(opposite pump attachment). If the rotation is incorrect,
interchange any two of the power supply connections to
reverse rotation.
Venting
DANGER: DO NOT run machine indoors or in an
enclosed area without proper ventilation, as exhaust
fumes may be hazardous to your health.
DANGER: DO NOT operate machine in areas where
flammable vapors (gasoline, solvents, etc.) may be
present, as this machine may ignite the vapors.
CAUTION: All venting must be in accordance with
applicable federal and state laws, and local ordi-
nances. This machine is not to be connected to a
type B gas vent. Consult local heating contractors.
If the pressure washer is to be used in an enclosed area,
a flue must be installed to vent burner exhaust to the
outside atmosphere. Be sure the flue is the same size
as the burner exhaust vent on the pressure washer lid.
Poor draft will cause the pressure washer to soot and
not operate properly. When selecting the location for in-
stallation, beware of poorly ventilated locations or areas
where exhaust fans may cause an insufficient supply of
oxygen. Proper combustion can only be obtained when
there is a sufficient supply of oxygen available for the
amount of fuel being burned. If it is necessary to install
the machine in a poorly ventilated area, outside fresh air
may have to be piped to the burner and a fan installed to
bring sufficient air into the machine. Locate the pressure
washer so that the flue will be as straight as possible and
protrude through the roof at a proper height and location
to provide adequate draft.This oil fired pressure washer
must have a draft regulator installed in the flue (available
from most heating contractors). A draft regulator will
permit proper upward flow of exhaust flue gases.
Hotsy natural and LP gas series pressure washers that
incorporate a natural draft burner assembly designed to
heat water that comes from the pressure washer pump
require a draft diverter and vent pipe for exhausting to
the outside. This operator's manual indicates this ma-
chine is to be vented through the ceiling using straight
pipe or 45° elbows. It also discourages the use of any
90° venting elbows which restrict air flow through the
burner causing poor burner conditions. If this machine is
going to be installed to a 90° or extended exhaust vent
run length which may restrict air flow it is recommended
that a contractor install a power vent. When a contractor
has found it impossible to vent through the ceiling then
power venting can be calculated to help eliminate exhaust
Figure 4 - Wiring Connections
Power In
8916831-8

8.916-831.0 • HOTSY STATIONARY ELECTRIC • REV. 10/13
OPERATOR’S MANUAL PRESSURE WASHER
10
INSTALLATION INSTRUCTIONS
restriction on this natural draft machine.This draft inducer
(power vent) must be installed by a licensed contractor
who can calculate size, operation connections and as-
sociated dampeners. Hotsy is not a licensed contractor
and as such we are unable to make recommendations
for suitable make and model of power vents.
It is important that the licensed contractor consult local
building codes. Hotsy can only make recommendations
and the selection of the venting must take into account
the type of roof or wall material it contacts which could
change the vent requirement for compliance with local
building codes
Oil Burner
Burner Air Adjustment:
The oil burner on this machine is preset for operation
at altitudes below 1000 feet. If operated at higher
altitudes, it may be necessary to adjust the air band
setting. Adjust air band for a #1 or #2 smoke spot
on the Bacharach scale. If a smoky or eye-burning
exhaust is being emitted from the stack, two things
should be checked. First, check the fuel to be certain
that kerosene or No.1 home heating fuel is being
used. Next, check the air adjustment on the burner.
An oily, smoky fire indicates a lack of air and the air
bandshould be moved to allow the air to flow through
the burner. Sharp eye-burning fumes indicate too much
air flowing through the combustion chamber. The air
band should be readjusted to allow less air to flow
through the burner.
CAUTION: If white smoke appears from burner
exhaust vent during start-up or operation, discon-
tinue use and readjust air bands.
NOTE: If a flue is installed, have a professional ser-
viceman adjust your burner for a #1 or #2 smoke spot
on the Bacharach scale.
It is recommended that the oil burner be serviced yearly
or as needed. Contact your local service center.
Beckett Burner Air Adjustment:
To adjust, start the machine and turn burner ON.
Loosen two locking screws found in the air shutter
openings (see illustration) and close air shutter until
black smoke appears from burner exhaust vent. Note
air band position. Next, slowly open the air shutter
until white smoke just starts to appear.Turn air shutter
halfway back to the black smoke position previously
noted. Tighten locking screws.
If the desired position cannot be obtained using only
the air shutter, lock the air shutter in as close a position
as can be obtained, then repeat the above procedure
on the air band setting.
Hotsy Crossfire Burner Air Adjustment
To adjust, start machine and turn burner ON. Loosen
two locking screws found on the air band and close air
band until black smoke appears from burner exhaust
vent. Note air band position. Next, slowly open the air
band until white smoke just starts to appear. Turn air
band halfway back to the previously noted position.
Tighten locking screws.
Gas Burner
CAUTION: Have a qualified gas serviceman install
and service your equipment.
WARNING: Gas line supply pressure must not exceed
14 water column inches (.50 PSI).
IMPORTANT: Gas line must be provided with a shut
off valve.
IMPORTANT: The gas supply must be able to supply
a minimum of 525,000 BTU/HR at the machines rated
manifold pressure.
Reference Numbers
Air Band Locking Screws
Air Band
Figure 6 - Crossfire Burner Air Band Adjustment
Figure 5 - Beckett Burner Air Band Adjustment
Air Shutter
Locking Screw
Air Shutter
Locking Screw
Air Band Locking
Screw
Air Shutter
Air Band

8.916-831.0 • HOTSY STATIONARY ELECTRIC • REV. 10/13
11
PRESSURE WASHER OPERATOR’S MANUAL
OPERATION INSTRUCTIONS
Consult building codes for installation requirements.
For proper and safe machine operation, we recommend
that a licensed contractor be consulted for machine
installation.
Natural Gas Fuel
Have a qualified gas serviceman install the natural gas
fuel supply line to the machine. See Figure 7 for location
of gas inlet.
Gas Valve
The ideal incoming gas pressure is 11 w.c.i. (water column
inches) minimum 6 w.c.i., maximum 14 w.c.i. or 1/2 psig.
The correct operating manifold pressure for natural gas
is 3.5 w.c.i. The operating manifold pressure for propane
gas is 11 w.c.i. The gas valve pressure regulator can be
adjusted between 3 and 4 w.c.i. natural gas or 6 and 11
w.c.i. for propane.
The gas pressure coming out of the regulator and going to
the burner ring has been factory set for elevations of 0 to
2000 ft. Altitudes greater than 2000 ft will require adjust-
ments to the gas manifold pressures. Consult your local
service dealer/distributor for high altitude adjustments. In
Canada, certification for installation at altitudes over 4500
feet above sea level is the jurisdiction of local authorities.
You should not readjust the burner ring gas pressure. If
you replace your gas valve, you will need to adjust the new
valve. Refer to your machine’s specification plate for the
correct pressure setting. Follow the installation and adjust-
ment instructions provided with your replacement valve.
NOTE: Air for combustion and ventilation along with
exhaust flue sizing must conform to methods outlined
in current American Standard (ANSI-Z223.1) National
Fuel Gas Code or National Standard of Canada CSA-
149.1 and CSA-149.2 “Installation Code for Gas Burning
Appliances”.
Before Starting
1. Read all manuals provided with this pressure wash-
er. Become familiar with location and function of all
operating and safety controls.
2. Check pump oil level.
WARNING: Check hoses, fittings, wand, trigger gun
and fuel connections daily for signs of wear, cracks
and looseness, and replace as required.
3. Connect water supply hose to the garden hose con-
nector located on the float tank. The water faucet
and supply hose must be capable of providing a
minimum of 8.0 gallons per minute (GPM).
4. Fill oil burner fuel tank. Use kerosene, #1 grade
home heating oil, #1 or #2 diesel fuel. DO NOT USE
GASOLINE, CRANKCASE OIL DRAININGS, OR
WASTE OIL.
5. If detergents are to be used, only use detergents
intended for pressure washers. Follow instructions
on the detergent container.
IMPORTANT: Before installing nozzle on initial start-
up, turn on the water supply and pump switch and
allow water to run from the end of the wand until
clear to prevent the nozzle from clogging.
IMPORTANT: If the pressure washer has not been
used for an extended period of time, remove the
nozzle from the end of the wand and turn on water
supply and pump switch. Allow water to run from
the end of the wand until clear.
6. Install the proper pressure nozzle on end of wand
for your cleaning needs, refer to Figure 8.
IMPORTANT:The trigger gun provided with this pres-
sure washer is equipped with a manual trigger lock
to prevent accidental operation of the trigger gun,
refer to Figure 8. The trigger lock should be used
whenever the trigger gun is not in use.
8916831-10
Figure 7 - Gas Valve and Regulator Side View
Outlet View
Inlet View
8916831-6
Figure 8 - Nozzle Installation/Manual Trigger Lock
Manual Trigger Lock
Pressure Nozzle

8.916-831.0 • HOTSY STATIONARY ELECTRIC • REV. 10/13
OPERATOR’S MANUAL PRESSURE WASHER
12
OPERATION INSTRUCTIONS
To Start
DANGER: DO NOT point wand or trigger gun at your-
self or at any person. Bodily injury may result from
water under high pressure.
WARNING: Wear eye, ear, hand, foot and skin protec-
tion at all times while operating pressure washer.
IMPORTANT: The water must be turned on before
starting. Running the pump dry will cause damage
and void warranty.
IMPORTANT: DO NOT allow the machine to run with
trigger of the trigger gun released for more than
10 minutes at any one time or damage to pump may
occur.
1. Turn ON water supply.
2. Hold wand firmly, release trigger of trigger gun and
press pump start switch. Squeeze trigger of trigger
gun and allow air to purge from system.
3. If HOT water is desired, adjust the thermostat to
the proper temperature and turn burner switch ON.
The burner will light immediately with a small puff of
smoke. You may need to initially adjust your burner
for peak performance. See Oil Burner section un-
der Installation. If smoke continues, refer to the Oil
Burner Manual (P/N 783879) provided with this
pressure washer. When the trigger of the trigger gun
is released or when the thermostat temperature set-
ting is reached, the burner will automatically turn off.
To Stop
1. If detergents were used, draw clear water through
the detergent inlet line to purge detergent. Failure to
do so may clog detergent metering valve.
2. If burner was used, turn OFF burner switch and al-
low pump to run cold water through coil for several
minutes.
3. Press pump STOP switch.
4. Turn water supply OFF.
5. Squeeze trigger of trigger gun to relieve system
pressure.

8.916-831.0 • HOTSY STATIONARY ELECTRIC • REV. 10/13
13
PRESSURE WASHER OPERATOR’S MANUAL
CLEANING TECHNIQUES
Pre-rinse cleaning surface with fresh water. Place de-
tergent suction tube directly into cleaning solution and
apply to surface at low pressure (for best results, limit
your work area to sections approximately 6 feet square
and always apply detergent from bottom to top). Allow
detergent to remain on surface 1-3 minutes. Do not
allow detergent to dry on surface. If surface appears
to be drying, simply wet down surface with fresh water.
If needed, use brush to remove stubborn dirt. Rinse at
high pressure from top to bottom in an even sweeping
motion keeping the spray nozzle approximately 1 foot
from cleaning surface. Use overlapping strokes as you
clean and rinse any surface. For best surface cleaning
action spray at a slight angle.
Recommendations:
 • Before cleaning any surface, an inconspicuous
area should be cleaned to test spray pattern and
distance for maximum cleaning results.
 • If painted surfaces are peeling or chipping,
use extreme caution as pressure washer may
remove the loose paint from the surface.
• Keepthespraynozzleasafedistancefromthe
surface you plan to clean. High pressure wash a
small area, then check the surface for damage. If
no damage is found, continue to pressure wash-
ing.
CAUTION - Never use:
 • Bleach, chlorine products and other corrosive
chemicals
 • Liquidscontaining solvents(i.e.,paint thinner,
gasoline, oils)
 • Tri-sodiumphosphateproducts
 • Ammoniaproducts
 • Acid-basedproducts
These chemicals will harm the machine and will dam-
age the surface being cleaned.
GENERAL CLEANING TECHNIQUES & STORAGE
RINSING
It will take a few seconds for the detergent to clear.
Apply safety latch to spray gun. Select and install
desired high pressure nozzle. NOTE: You can also
stop detergent from flowing by removing detergent
siphon tube from bottle.
STORAGE
DANGER: DO NOT store flammable liquids (gasoline,
diesel fuel, solvents, etc.) near pressure washer, or
in non-ventilated areas.
Protect from freezing by storing in a heated area, or
by flushing the system with antifreeze (use an automo-
tive engine antifreeze or windshield washer solvent to
antifreeze). To flush the system fill the float tank with
antifreeze and remove pressure nozzle from wand. Start
the machine and allow it to run until antifreeze flows from
the end of the wand. Place end of wand into float tank
and circulate the antifreeze through system for several
minutes. Squeeze and release the trigger of the trigger
gun several times to antifreeze the unloader system.
Also draw antifreeze through the detergent inlet line to
antifreeze the detergent system. For added protection
after antifreezing, disconnect the pressure hose from
machine and remove the coil drain plug. After coil has
drained, replace pressure hose and coil drain plug. If the
pressure washer is not to be used for an extended length
of time, it is recommended that the system be flushed
with antifreeze for rust protection.

8.916-831.0 • HOTSY STATIONARY ELECTRIC • REV. 10/13
OPERATOR’S MANUAL PRESSURE WASHER
14
MAINTENANCE
WARNING: Unauthorized machine modification or
use of non-approved replacement parts may cause
personal injury and/or property damage and will void
the manufacturer warranty.
Pump
Lubrication: To lubricate pump, use 30W non-detergent
oil for pump crankcase. Crankcase must be filled to center
of sight glass window found on the rear of the pump, refer
to Figure 9. During the break-in-period, make sure the
oil is changed after the first 25 hours of operation. After
that, replace oil every 3 months or 300 hours of operation,
whichever comes first.
Proper Pump Care:
•DO NOT pump acids.
•DO NOT allow pump to run dry.
•Winterize if storing in freezing temperatures, refer
to Storage for details.
•Use a water softener on the water system if known
to be high in mineral content.
•Use only high quality detergents and follow manu-
facturer’s mix recommendations.
•Flush the system with clear water immediately
after using detergent solutions.
•Clean filter screen on detergent inlet line periodi-
cally.
•Flush the pressure washer system with antifreeze
if storing for an extended period of time, refer to
Storage to details.
Pump Motor
Inspect the pump motor at regular intervals. The exterior
of the motor should be kept free of dirt, oil, grease, water,
etc. Keep all ventilation openings free from debris. If the
motor is equipped with grease fittings, lubricate the motor
after every 1000 hours of operation with Chevron SRI #2
lubricant or equivalent. If the motor is not equipped with
grease fittings, the pump motor bearings are permanently
lubricated and will not require any additional lubrication.
Oil Burner
Refer to Oil Burner Manual provided with this pressure
washer for recommended maintenance.
Relief Valve
WARNING: The relief valve on this pressure washer
has been factory set and sealed and is a field nonad-
justable part.Tampering with the factory setting may
cause personal injury and/or property damage, and
will void the manufacturer warranty.
Unloader Valve
WARNING: The unloader valve on this pressure
washer has been factory set and sealed and is a field
nonadjustable part.Tampering with the factory setting
may cause personal injury and/or property damage,
and will void the manufacturer warranty.
Burner Fuel Filter (Oil fired models only)
Drain any water which has accumulated in fuel filter
and clean or replace filter element as needed.
Heating Coil
Coil Descaling: In hard water areas, scale buildup within
the heating coil will occur. Scale deposits will decrease
the water temperature rise and may eventually clog the
heating coil. Contact your local service center when des-
caling is needed.
Coil Desooting: Poor grades of fuel oil or inadequate
combustion air will cause heavy soot buildup on the
outside surface of the heating coil. These deposits will
insulate the coil. This will restrict the air flow through the
coil, further aggravating the soot buildup. Contact your
local service center when desooting is needed.
Oil Fill
8916831-11
Figure 9 - Pump Lubrication

8.916-831.0 • HOTSY STATIONARY ELECTRIC • REV. 10/13
15
PRESSURE WASHER Troubleshooting Guide
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION
PRESSURE
WASHER WILL
NOT RUN
Pump switch in OFF position Place switch in ON position.
Power supply disconnected Connect power supply.
Fuse blown or circuit breaker
tripped in electrical supply line
Replace fuse or reset circuit breaker. Use only
circuits of adequate capacity.
Motor circuit overload tripped Allow sufficient time for motor to cool down. Place
pump switch in ON position.
PRESSURE
WASHER RUNS
BUT WON’T SPRAY
Trigger of trigger gun released Squeeze trigger.
Water supply not turned on Open water supply valve.
Clogged pressure nozzle Clean pressure nozzle opening.
Inlet water screen clogged Check screen and clean if necessary.
Pump sucking air Fill the detergent container and check for loose
hose clamps or fittings.
LOW SPRAY
PRESSURE
AT NOZZLE
Inadequate water supply Fully open faucet. Check for kinked or damaged
hose. Use 5/8" minimum hose. Check for debris
clogging inlet screen.”
Partially clogged or damaged
pressure nozzle
Clean or replace.
Air being drawn through
detergent inlet line
Refill detergent container. Ensure that pick-up
screen is fully immersed.
UNEVEN SPRAY
PATTERN
Partially clogged or damaged
pressure nozzle
Clean or replace.
PRESSURE
WASHER WILL
NOT PRODUCE
HOT WATER
Burner switch in OFF position Place switch in ON position.
Gas valve switch in OFF
position
Place switch in ON position.
Inadequate fuel supply Check fuel supply.
Pump switch turned off Pump must be running before burner will light.
TROUBLESHOOTING GUIDE

8.916-831.0 • HOTSY STATIONARY ELECTRIC • REV. 10/13
17
PRESSURE WASHER WARRANTY
HOTSY LIMITED NEW PRODUCT WARRANTY
PRESSURE WASHERS
WHAT THIS WARRANTY COVERS
All Hotsy pressure washers are warranted by Hotsy to the original purchaser to be free from defects in materials and work-
manship under normal use, for the periods specified below. This Limited Warranty is subject to the exclusions shown below,
is calculated from the date of the original purchase, and applies to the original components only. Any parts replaced under
this warranty will assume the remainder of the part’s warranty period.
SEVEN YEAR PARTS AND ONE YEAR LABOR WARRANTY:
Components manufactured by Hotsy, such as frames, handles, top and bottom wraps, float tanks, fuel tanks, belt guards, and
internal components on the oil-end of HOTSY manufactured pumps. General, AR, Liberty, Comet and swash and wobble
plate pumps have a one year warranty. Heating coils have a five year warranty from date of original machine purchase.
ONE YEAR PARTS AND ONE YEAR LABOR WARRANTY:
All other components, excluding normal wear items as described below, will be warranted for one year on parts and
labor. Parts and labor warranty on these parts will be for one year regardless of the duration of the original component
manufacturer’s part warranty.
WARRANTY PROVIDED BY OTHER MANUFACTURERS:
Motors, generators, and engines, which are warranted by their respective manufacturers, are serviced through these manu-
facturers’ local authorized service centers. Hotsy is not authorized and has no responsibility to provide warranty service
for such components.
WHAT THIS WARRANTY DOES NOT COVER
This warranty does not cover the following items:
1. Normal wear items, such as nozzles, spray guns, discharge hoses, wands, quick couplers, seals, filters, gaskets,
O-rings, packings, pistons, pump valve assemblies, strainers, belts, brushes, rupture disks, fuses, pump protec-
tors.
2. Damage or malfunctions resulting from accidents, abuse, modifications, alterations, incorrect installation, improper
servicing, failure to follow manufacturer’s maintenance instructions, or use of the equipment beyond its stated us-
age specifications as contained in the operator’s manual.
3. Damage due to freezing, chemical deterioration, scale build up, rust, corrosion, or thermal expansion.
4. Damage to components from fluctuations in electrical or water supply.
5. Normal maintenance service, including adjustments, fuel system cleaning, and clearing of obstructions.
6. Transportation to service center, field labor charges, or freight damage.
WHAT YOU MUST DO TO OBTAIN WARRANTY SERVICE
In order to obtain warranty service on items warranted by Hotsy, you must return the product to your Authorized Hotsy
Distributor, freight prepaid, with proof of purchase, within the applicable warranty period. If the product is permanently
installed, you must notify your Authorized Hotsy Distributor of the defect. Your Authorized Hotsy Distributor will file a claim
with Hotsy, who must subsequently verify the defect. In most cases, the part must be returned to Hotsy freight prepaid
with the claim. For warranty service on components warranted by other manufacturer’s, your Authorized Hotsy Distributor
can help you obtain warranty service through these manufacturers’ local authorized service centers.
LIMITATION OF LIABILITY
Hotsy’s liability for special, incidental, or consequential damages is expressly disclaimed. In no event shall Hotsy’s liability
exceed the purchase price of the product in question. Hotsy makes every effort to ensure that all illustrations and specifica-
tions are correct, however, these do not imply a warranty that the product is merchantable or fit for a particular purpose, or
that the product will actually conform to the illustrations and specifications. Our obligation under this warranty is expressly
limited at our option to the replacement or repair at a service facility or factory designated by us, of such part or parts as
inspection shall disclose to have neen defective. THE WARRANTY CONTAINED HEREIN IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF MERCANTABILITY OR FITNESS
FOR A PARTICULAR PURPOSE ARE EXPRESSLY LIMITED TO THE DURATION OF THIS WRITTEN WARRANTY.
Hotsy does not authorize any other party, including authorized Hotsy Distributors, to make any representation or promise
on behalf of Hotsy, or to modify the terms, conditions, or limitations in any way. It is the buyer’s responsibility to ensure that
the installation and use of Hotsy products conforms to local codes. While Hotsy attempts to assure that its products meet
national codes, it cannot be responsible for how the customer chooses to use or install the product. Some states do not al-
low limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages,
so the above limitation or exclusion may not apply to you. This warranty gives you specific legal rights and you may also
have other rights which vary from state to state.
HOTSY
www.hotsy.com

Form #8.916-831.0 • Revised 10/13 • Printed in U.S.A. by Hotsy
If you need service on your pressure washer, contact your local Hotsy
dealer or visit www.Hotsy.com. Smart phone users scan the code below to
link directly to the Service Request page.