Master MH-400T-KFA Manual

Model Number
MH-400T-KFA
CONSUMER: READ AND SAVE THESE INSTRUCTIONS
GENERAL HAZARD WARNING: Be sure to comply with the
instructions and warnings provided with this heater, or death,
serious bodily injury and property loss, damage from the hazards
of fire, explosion, burn,asphyxiation, and carbon monoxide poisoning can result.
Only persons who can follow and understand these instructions should use or service this
heater. If you need heater information such as an instruction manual, labels, etcetera,
contact the manufacturer.
DANGER
1 Industrial Blvd #101, Sauk Rapids, MN 56379 USA • Toll Free [phone]
Fax: [phone] • Web: www.masterindustrialproducts.com • Email: [email protected]
© 2017 Pinnacle Climate Technologies, Inc. MAKB-409
User’s Manual &
Operating Instructions
KEROSENE FORCED AIR
HEATER
IMPORTANT: Read and understand all of the directions in this manual before assembling,
starting, or servicing the heater. Improper use of this heater can cause serious injury. Keep
this manual for future reference. The requirements of local authorities having jurisdiction
shall be followed.
Not for use in residential living areas or in non-adequately ventilated
enclosed spaces. For outdoor use. Indoor use permitted for: The
temporary heating of adequately ventilated buildings or structures
under construction, alteration or repair.
DANGER

NEVER LEAVE HEATER UNATTENDED WHILE BURNING
OR WHILE CONNECTED TO A POWER SOURCE
© 2017, Pinnacle Climate Technologies, Inc. Kerosene Forced Air Heater User’s Manual
2
This is a kerosene direct-red, forced air heater. Kerosene forced
air heaters are primarily intended for use for temporary heating
of buildings under construction, alteration or repair. Direct-red
means that all of the combustion products of the heater enter the
heated space. This appliance is rated at 98% combustion efciency,
but does produce small amounts of carbon monoxide. Carbon
monoxide is toxic.
Humans can tolerate small amounts of carbon monoxide, and
precautions should be taken to provide proper ventilation. Failure
to provide proper ventilation according to this manual can result
in death. Early signs of carbon monoxide poisoning resemble the
u. Symptoms of improper ventilation are: Symptoms of improper
ventilation / carbon monoxide poisoning are:
Headache • Dizziness •Nausea • Dry Mouth Sore Throat •
Burning of Nose and Eyes
For optimal performance of this heater, it is strongly suggested
that K-1 kerosene be used. K-1 kerosene has been refined to
virtually eliminate contaminants, such as sulfur, which can cause
a rotten egg odor during the operation of the heater. However, #1
or #2 fuel oil (diesel fuel) may also be used if K-1 kerosene is not
available. Be advised that these fuels do not burn as clean as K-1
kerosene, and care should be taken to provide more fresh air
ventilation to accommodate any added contaminants that may be
added to the heated space. Use of #1 or #2 fuel oil may result in
more periodic maintenance.
Risk of indoor air pollution!
- Use this heater only in well ventilated areas! Provide, at heater
level, at least a three square foot (2,800 sq. cm) opening of
outside air for every 100,000 BTU/hr of heater rating.
- People with breathing problems should consult a physician
before using the heater.
- Carbon Monoxide Poisoning: Early signs of carbon monoxide
poisoning resemble flu-like symptoms such as headaches,
dizziness, and/or nausea. If you have these symptoms, your
heater may not be working properly.
- Get fresh air at once! Have the heater serviced. Some people
are more affected by carbon monoxide than others. These include
pregnant women, those with heart or lung problems, anemia, or
those under the influence of alcohol, or at high altitudes.
Risk of burns / fire / explosion!
- NEVER use fuels such as gasoline, benzene, paint thinners,
crankcase drainings, or other oil compounds in this heater (RISK
OF FIRE OR EXPLOSION).
MASSACHUSETTS RESIDENTS: Massachusetts
state law prohibits the use of this heater in any building which
is used in whole or in part for human habitation. Use of this
heating device in Massachusetts requires local fire department
permit (M.G.L.C. 148, Section 10A).
NEW YORK CITY RESIDENTS: The New York City
Fire Code prohibits the storage, handling and use of kerosene
fueled heaters for space heating. Any person violating that
provision may be punished by a fine up to $10,000 and a term
of imprisonment of up to 6 months.
CALIFORNIA RESIDENTS: This product contains
chemicals, including lead, known to the State of California to
cause birth defects or other reproductive harm. Wash hands
after handling.
Table of Contents
Safety Information ......................................................................2-3
Features ........................................................................................ 3
Specifications ................................................................................ 4
Unpacking...................................................................................... 5
Assembly....................................................................................5-6
Operation....................................................................................6-8
Maintenance.............................................................................9-11
Wiring Diagram............................................................................ 11
Exploded View............................................................................. 12
Parts List ..................................................................................... 13
Troubleshooting Guide ................................................................ 14
Warranty...................................................................................... 15
FIRE, BURN, INHALATION AND
EXPLOSION HAZARD. Keep com-
bustibles such as building materials,
paper or cardboard a safe distance away from the heater as
recommended by these instructions. Never use the heater in
spaces which contain products such as gasoline, solvents, paint
thinners, dust particles, volatile or airborne combustibles or any
unknown chemicals. This is an unvented portable heater. It
uses air (Oxygen) from the area in which it is used. Adequate
combustion and ventilation air must be provided. Refer to
“Ventilation” on page 7.
WARNING
DO NOT OPERATE THIS HEATER
UNTIL YOU HAVE READ AND
THOROUGHLY UNDERSTAND
THESE SAFETY AND OPERATING INSTRUCTIONS. Failure
to comply with the precautions and instructions provided with
this heater can result in death, serious bodily injury, property
loss or damage from the hazards of fire, soot production, explo-
sions, burns, asphyxiation or carbon monoxide poisoning. Only
persons who can read and understand these instructions should
use or service this heater.
WARNING
Safety Information
Indicates an imminently hazardous
situation which, if not avoided, WILL
result in death or serious injury.
Indicates a potentially hazardous situa-
tion which, if not avoided, COULD result
in death or serious injury.
Indicates a potentially hazardous
situation which, if not avoided, MAY
result in minor or moderate injury.
WARNING
DANGER
CAUTION
CARBON MONOXIDE POISONING MAY
LEAD TO DEATH!
DANGER
WARNING
WARNING

NEVER LEAVE HEATER UNATTENDED WHILE BURNING
OR WHILE CONNECTED TO A POWER SOURCE
© 2017, Pinnacle Climate Technologies, Inc. Kerosene Forced Air Heater User’s Manual
3
- NEVER refill the heater’s fuel tank while heater is operating or
still hot. This heater is EXTREMELY HOT while in operation.
- Keep all combustible materials away from this heater.
- NEVER block air inlet (rear) or air outlet (front) of heater.
- NEVER use duct work in front or at rear of heater.
- NEVER move or handle heater while still hot.
- NEVER transport heater with fuel in its tank.
- If equipped with a thermostat, the heater may start at any time.
- ALWAYS locate heater on a stable and level surface.
- ALWAYS keep children and animals away from heater.
- Bulk fuel storage should be a minimum of 25 ft. from heaters,
torches, portable generators, or other sources of ignition. All
fuel storage should be in accordance with federal, state, or local
authorities having jurisdiction.
- Never use this heater in living or sleeping areas.
- NEVER use this heater where flammable vapors may be present.
Risk of electric shock!
- Use only the electrical power (voltage and frequency) specified
on the model plate of the heater. Use only a three- prong,
grounded outlet and extension cord.
- ALWAYS install the heater so that it is not directly exposed to
water spray, rain, dripping water, or wind.
- ALWAYS unplug the heater when not in use.
Minimum Clearance From Combustibles
MH-400T-KFA
Top 4 ft. (125 cm)
Sides 4 ft. (125 cm)
Front 8 ft. (250 cm)
Safety Information (Continued)
WARNING
Features
Front Handle
Hot Air outlet
Safety Guard
Lower Shell
Upper Shell
Fuel Cap
Fuel Gauge
Extension
Cord Wrap
Rear Handle
Fan Guard
Power Cord
Side Cover
Control Panel
Fuel Tank
Drain Bolt
(Bottom-Front
of Fuel Tank)
Figure 1. Features of Model MH-400T-KFA

NEVER LEAVE HEATER UNATTENDED WHILE BURNING
OR WHILE CONNECTED TO A POWER SOURCE
© 2017, Pinnacle Climate Technologies, Inc. Kerosene Forced Air Heater User’s Manual
4
Unpacking
Remove the heater and all of the packaging materials from the
shipping carton.
NOTE: Save the box and packaging materials for future storage.
Check the diagram on the following page to be sure that you
have all of the parts required to assemble your heater. If you find
that any parts are missing, call 800-779-3267 for assistance in
receiving the missing components.
Specications
MH-400T-KFA
L53"
W30"
H36"
"03"35
36"
Figure 2. Dimensions of Model MH-400T-KFA

NEVER LEAVE HEATER UNATTENDED WHILE BURNING
OR WHILE CONNECTED TO A POWER SOURCE
© 2017, Pinnacle Climate Technologies, Inc. Kerosene Forced Air Heater User’s Manual
5
Front Handle
Axle
Rear Handle
Wheel Support Frame
Assembly
Model MH-400T-KFA
Wheel Yes
Wheels and Axle Yes
Wheel Caps No
Front Handle Yes
Rear Handle Yes
Cord Wraps Yes
Screws, Nuts, and Washers Yes
Cotter Pins and Bushings Yes
Wheels (Pneumatic)
Screws (L) Screws (S)
Nuts
Flat Washers (S) Flat Washers (L)Cotter PinsBushings
Cord Wraps
Figure 3. Component Identication
TOOLS REQUIRED
• MEDIUM PHILLIPS SCREWDRIVER
• OPEN END OR ADJUSTABLE WRENCH
• LONG NOSE PLIERS
ASSEMBLING WHEEL & HANDLE
1. Slide axle through wheel support frame. Install wheel bushings,
flat washers (S) and wheel on axle.
NOTE: When installing wheels, tube valve should face out from
support frame (Figure 4).
2. Place flat washers (L) and cotter pins on axle ends and bend
cotter pins with long nose pliers to secure.
4. Place heater on wheel support frame. Make sure air inlet end
(rear) of heater is over wheels. Align the holes on fuel tank
flange. Insert screws through handles (front and rear), fuel tank
flange, and wheel support frame as shown in Figure 4 and
attach nut finger tight after each screw is inserted.
5. After all screws are inserted, tighten nuts firmly.
Do not operate heater without support
frame fully assembled.
CAUTION

NEVER LEAVE HEATER UNATTENDED WHILE BURNING
OR WHILE CONNECTED TO A POWER SOURCE
© 2017, Pinnacle Climate Technologies, Inc. Kerosene Forced Air Heater User’s Manual
6
KEROSENE (K-1)
For optimal performance of this heater, it is strongly suggested
that K-1 kerosene be used. K-1 kerosene has been refined to
virtually eliminate contaminants, such as sulfur, which can cause
a rotten egg odor during the operation of the heater. However, #1
or #2 fuel oil (diesel fuel) may also be used if K-1 kerosene is not
available. Be advised that these fuels do not burn as clean as K-1
kerosene, and care should be taken to provide more fresh air
ventilation to accommodate any added contaminants that may be
added to the heated space. Use of #1 or #2 fuel oil may result in
more periodic maintenance.
NOTE: Kerosene should only be stored in a blue container that is clearly
marked “Kerosene.” Never store kerosene in a red container. Red is
associated with gasoline.
- NEVER store kerosene in the living space. Kerosene should be stored
in a well ventilated area outside the living area.
- NEVER use fuel such as, benzene, alcohol, white glass, camp stove
fuel, paint thinners, or other oil compounds in this heater. THESE
ARE VOLATILE FUELS THAT CAN CAUSE A FIRE OR
EXPLOSION.
- NEVER store kerosene in direct sunlight or near a source of heat.
- NEVER use kerosene that has been stored from one season to the
next. Kerosene deteriorates over time. OLD KEROSENE WILL NOT
BURN PROPERLY IN THIS HEATER.
- Use K-1 kerosene in this heater. A suitable substitute is #1 fuel.
OVERVIEW OF HEATER DESIGN
Fuel System: This heater is equipped with an electric magnet
pump that forces fuel through the fuel line connected to the
fuel intake, and then through a nozzle in the burner head.
This fuel is then sprayed into the combustion chamber in a
fine mist.
“SureFire Ignition”: The electronic ignitor sends voltage to a
specially designed spark plug. The spark plug ignites the fuel
and air mixture.
The Air System: The heavy duty motor turns a fan that
forces air into and around the combustion chamber. Here, the
air is heated and then forced out the front of the heater.
THE SAFETY SYSTEM
Temperature Limit Control: This heater is equipped with a
Temperature Limit Control designed to turn the heater off should the
internal temperature rise to an unsafe level. If this device activates and
turns your heater off, it may require service. Once the temperature falls
below the reset temperature, you will be able to start your heater.
Electrical System Protection: This heater’s electrical system is
protected by a fuse that protects it and other electrical components from
damage. Fuse is located inside of an in-line “FUSE BARREL”. If your
heater fails to operate, check this fuse first and replace as needed.
Refer to Specification Chart on page 4.
Flame-Out Sensor: Utilizes a photocell to monitor the flame in burn
chamber during normal operation. It will cause the heater to shut off
should the burner flame extinguish.
FUELING YOUR HEATER
NEVER fill the heater fuel tank in the living space: fill the tank
outdoors.
Do not overfill your heater and be sure heater is leveled.
IMPORTANT: REGARDING FIRST IGNITION OF HEATER. The first
time you light the heater, it should be done OUTDOORS. This allows
the oils, etc. used in manufacturing the heater to burn off outside.
Operation
Model Internal Shut-off Temp.
+/-10 Degrees
Reset Temp.
+/-10 Degrees
MH-400T-KFA 176°F / 80°C 149°F / 65°C
Screw (L)
Fuel
Tank Flange
Wheel
Support Frame
Wheel
(Semi-Pneumatic)
Nut
Flat Washer (L)
Axle
Cotter Pin
Bushing
Flat Washer (S)
Air Inlet
Screw (S)
Cord Wrap
Wheel Tube Valve
Safety Guard
Figure 4. Wheel and Handle Assembly

NEVER LEAVE HEATER UNATTENDED WHILE BURNING
OR WHILE CONNECTED TO A POWER SOURCE
© 2017, Pinnacle Climate Technologies, Inc. Kerosene Forced Air Heater User’s Manual
7
Operation (Continued)
VENTILATION
Risk of indoor air pollution. Use
heater only in well ventilated areas.
Provide a fresh air opening of at least 3 square feet. (2,800 sq.
cm.) for each 100,000 BTU/Hr. rating. Provide extra fresh air if
more heaters are being used.
TO START HEATER
1. Fill fuel tank with K-1 kerosene.
2. Attach fuel cap.
3. Plug power cord into three-prong, grounded extension cord.
Extension cord must be at least six feet long.
Extension Cord Wire Size Requirements:
• 6 to 10 feet long, use 14 AWG conductor.
• 101 to 200 feet long, use 12 AWG conductor.
• 201 to 300 feet long, use 10 AWG conductor.
• 301 to 400 feet long, use 8 AWG conductor.
• 401 to 500 feet long, use 6 AWG conductor.
4. Push “OPERATION BUTTON” (see Figure 5). Power indicator
lamp and room temperature display will light and heater will
start. Push the up and down arrow keys on the control panel to
adjust the thermostat settings.
If heater does not start, the thermostat setting may be too low.
Push “TEMP CONTROL UP ARROW” to higher setting to start
heater. If heater still does not start, see Troubleshooting Guide on
page 14.
NOTE: The major electrical components of this heater are pro-
tected by a circuit breaker (fuse) mounted to the power switch. If
your heater fails to start, check this rst and replace as necessary.
You should also check your power source to insure that proper
voltage and frequency are being supplied to the heater.
TO STOP HEATER
Never unplug heater while heater is
running.
Heater must go through cooling cycle. The cooling cycle cools the
combustion chamber.
Damage to heater can occur if combustion chamber is not cooled.
Do not restart heater until cooling cycle is complete.
1. Push “OPERATION BUTTON” (see Figure 5). This will cause
heater ame to go out. The motor will continue to run during the
cooling cycle. This allows the fan to cool the combustion chamber.
When the cooling cycle (approx. 2 minutes) is nished, the motor
will stop. Do not unplug heater until cooling cycle is nished.
2. Disconnect heater from power source.
3. To temporarily stop heater, set thermostat at a temperature
lower than air around heater. Heater will cycle back on if air
temperature around heater matches thermostat setting.
TO RESTART HEATER
DO NOT restart heater until cooling
cycle is nished.
The cooling cycle cools the combustion chamber.
1. Wait until cooling cycle is nished after stopping heater.
2. Repeat steps under TO START HEATER.
LONG-TERM STORAGE OF HEATER
1. Remove drain nut from rear bottom side of fuel tank by un-
screwing nut and drain. See Figure 6 on page 8.
2. Using a small amount of kerosene, swirl and rinse the inside of
the tank.
NEVER MIX WATER WITH KEROSENE, as it will cause rust
inside the tank. Pour the kerosene out, making sure that you
remove it all.
IMPORTANT: Do not store kerosene over summer for use during
next heating season. Using old fuel may damage heater.
3. Reinstall drain bolt as follows:
i. Insert bolt’s seal head fully into drain hole so that ange is
ush to tank’s bottom. See Figure 6.
ii. Insert seal cap fully into head hole so that cap ange is ush
to head ange. See Figure 6.
CAUTION
NEVER FILL THE FUEL TANK
INDOORS. ALWAYS FILL THE
TANK OUTDOORS. BE SURE THAT
THE HEATER IS ON LEVEL GROUND WHEN FUELING, AND
NEVER OVERFILL THE FUEL TANK.
CAUTION
CAUTION
CAUTION
Figure 5
Operation
Button
Temp Control Buttons
Figure 5. Control Panel

NEVER LEAVE HEATER UNATTENDED WHILE BURNING
OR WHILE CONNECTED TO A POWER SOURCE
© 2017, Pinnacle Climate Technologies, Inc. Kerosene Forced Air Heater User’s Manual
8
Operation (Continued)
IMPORTANT: Reinstall bolt fully into hole in tank; otherwise it will
not seal completely.
- Make sure storage place is free of dust and corrosive fumes.
- Store the heater in the original box with the original packing
material and keep the USER’S MANUAL with heater.
Never service heater while it is
plugged in or while hot!
NOTE: USE ORIGINAL EQUIPMENT REPLACEMENT PARTS.
Use of third-party or other alternate components will void warranty
and may cause unsafe operating conditions.
FUEL TANK
- Flush every 200 hours of operation or as needed (see Long-
Term Storage of Heater, page 7).
FAN BLADES
CLEAN EVERY SEASON OR AS NEEDED.
1. Remove upper shell.
2. Use Allen wrench to loosen set screw which holds fan blade to
motor shaft.
3. Slip fan blade off motor shaft.
4. Clean fan blade using soft cloth moistened with kerosene or
solvent.
5. Dry fan blade thoroughly.
6. Reinstall fan blade to motor shaft.
7. Place fan hub ush with end of motor shaft.
8. Place set screw on at end of shaft.
9. Tighten screw rmly (40-50 inch pounds/ 4.5-5.6 N-m). Rein-
stall upper shell
NOZZLE
Remove dirt in nozzle as needed (see page 9).
1. Remove upper shell.
2. Remove fuel line B from burner assembly by using wrench.
3. Remove burner head from burner assembly.
4. Remove lead wire from spark plug.
5. Remove spark plug from burner head.
6. Carefully remove nozzle from burner head using socket
wrench.
7. Blow compressed air through face of nozzle (This will remove
any dirt).
8. Inspect nozzle for damage. If damaged or clogged, replace
nozzle.
9. Make sure plug is in place on burner head.
10. Reinstall nozzle into burner head and tighten rmly (175-200
inch-pounds).
11. Reinstall spark plug in burner head.
12. Attach burner head to combustion chamber (directions
continued on next page).
Drain Bolt
Drain Nut
Drain Bolt
(Bottom-Front of Fuel Tank)
Figure 6. Drain Bolt Reinstall
Maintenance
WARNING

NEVER LEAVE HEATER UNATTENDED WHILE BURNING
OR WHILE CONNECTED TO A POWER SOURCE
© 2017, Pinnacle Climate Technologies, Inc. Kerosene Forced Air Heater User’s Manual
9
NOZZLE (Continued)
13. Attach spark plug wire to spark plug
14. Attach fuel line to burner head and tighten rmly.
15. Replace upper shell.
16. Attach ignitor wire to spark plug.
17. Attach fuel and air line hoses to burner head.
18. Reinstall fan blade and upper shell.
SPARK PLUG
CLEAN AND REGAP EVERY 600 HOURS OF OPERATION OR
REPLACE AS NEEDED.
1. Remove upper shell.
2. Remove spark plug wire from spark plug (see Figure 9).
3. Remove spark plug from burner head using medium Phillips
screwdriver.
4. Clean and regap spark plug electrodes to 3.5 mm gap (+/-
0.5mm).
5. Reinstall spark plug into burner head.
6. Attach spark plug wire to spark plug.
7. Reinstall upper shell.
PHOTOCELL
CLEAN PHOTOCELL ANNUALLY OR AS NEEDED.
1. Remove upper shell.
2. Remove fan (see FAN BLADES, page 8).
3. Remove photocell from its mounting bracket
4. Clean photocell lens with cotton swab.
TO REPLACE: 1. Remove side cover near Operation switch.
2. Disconnect wires from Operation switch and remove photocell.
3. Disconnect wires from circuit board and remove side cover.
4. Install new photocell and attach wires to circuit board.
5. Replace switch wires to operation switch and side cover.
6. Replace fan and upper shell.
Maintenance (Continued)
Nozzle
Photocell
Figure 7. Nozzle Replacement
Spark
Plug
Nozzle
Figure 8. Nozzle
Spark Plug
Nozzle
Photocell
Figure 9. Spark Plug Replacement
Figure 10. Photocell Lead Wire
Figure 11. Photocell Replacement

NEVER LEAVE HEATER UNATTENDED WHILE BURNING
OR WHILE CONNECTED TO A POWER SOURCE
© 2017, Pinnacle Climate Technologies, Inc. Kerosene Forced Air Heater User’s Manual
10
FUEL FILTER
CLEAN TWICE PER HEATING SEASON OR AS NEEDED.
Fuel lter A on fuel cap (see Figure 12)
1. Remove fuel cap.
2. Take out fuel lter with clean kerosene.
3. Wash fuel lter with clean kerosene.
4. Replace fuel lter on fuel tank.
5. Replace fuel cap on fuel tank.
Fuel lter B on fuel line (see Figure 12)
1. Remove fuel line A from fuel pump by using wrench.
2. Take out fuel line from fuel tank by pulling out fuel lter gasket.
3. Remove fuel lter assembly from fuel line
4. Wash fuel lter in clean kerosene.
5. Reassemble fuel lter in reverse order.
Use of diesel may require additional maintenance. Improper
maintenance can lead to poor combustion and soot production.
PUMP PRESSURE ADJUSTMENT
1. Remove right side panel.
(If not using an accessory fuel pressure gauge, please skip to #4)
2. Remove air vent screw.
3. Insert accessory fuel pressure gauge at outlet of air vent screw.
4. Adjust pump pressure by turning pressure adjusting screw. See
Figure 13.
i. Turn pressure adjusting screw clockwise to increase pressure.
ii. Turn pressure adjusting screw counterclockwise to decrease
pressure.
5. Set pump pressure to 125 PSI (+/- 6 PSI).
We do not recommend adjusting the pump pressure if the red
markings on the pump body and pressure adjusting screw
are aligned with each other.
NOTE: Use only original equipment replacement parts. Use of
alternate or third party components will void any warranty and
may cause unsafe operating conditions.
6. Stop heater (see OPERATION, page 7).
7. If accessory pressure gauge is being used, remove pressure
gauge.
8. Plug in end of lter cover, and replace air vent screw and panel..
NOTE: If heater does not ignite when heater is turned on, please
turn AIR VENT SCREW counter clockwise to release air, then turn
OPERATION SWITCH back on.
NOTE: An accessory service fuel pressure gauge is available for
accurate fuel pressure testing. Please call 1-800-779-3267 for
more information.
AIR BLEED DIRECTIONS
If your heater fails to ignite, having air trapped in the fuel pump
may be the cause. Air in the fuel pump will cause ignition failure
and is often accompanied by a loud “grinding” or vibrating sound
being made by the fuel pump. This heater is designed to easily
remove any air in the fuel pump by simply following the air
bleeding procedure below:
1. Fill fuel tank with K-1 kerosene. Turn the Air Vent Screw 3 full
turns counterclockwise from the factory closed / fully clockwise
position. (This will allow air to escape during operation). See
Figure 14.
2 Start the ignition sequence by following the standard ignition
procedures outlined on page 6 (directions continued on next
page).
Maintenance (Continued)
Fuel Line A
Fuel Line
A Gasket
Fuel Filter B
Fuel Cap
Fuel Cap
Gasket
Fuel Filter A
Figure 12. Remove Tank Fuel Filter
Pressure Adjusting Screw
Air Vent Screw
Figure 13. Pump Pressure Adjustment
Figure 14. Opening Air Vent Screw

NEVER LEAVE HEATER UNATTENDED WHILE BURNING
OR WHILE CONNECTED TO A POWER SOURCE
© 2017, Pinnacle Climate Technologies, Inc. Kerosene Forced Air Heater User’s Manual
11
Maintenance (Continued)
3. Allow the heater to attempt ignition for 3-5 seconds, during
which time you may hear a loud “grinding” or vibration sound.
4. If your heater has not ignited, re-start the ignition sequence.
Once the heater has ignited, turn the Air Vent Screw clockwise
until fully hand-tightened. See Figure 15. Any air trapped in the
fuel pump will have been purged.
5. Your heater is now ready for operation.
6. Re-ll your heater with fuel before it runs out. This will prevent
the fuel lines and fuel pump from drawing in air and having to
go through the air bleeding procedure again.
Figure 15. Tightening Air Vent Screw
Wiring Diagram
AIR BLEED DIRECTIONS (Continued)

NEVER LEAVE HEATER UNATTENDED WHILE BURNING
OR WHILE CONNECTED TO A POWER SOURCE
© 2017, Pinnacle Climate Technologies, Inc. Kerosene Forced Air Heater User’s Manual
12
Exploded View
1
2
3
4
5
6

NEVER LEAVE HEATER UNATTENDED WHILE BURNING
OR WHILE CONNECTED TO A POWER SOURCE
© 2017, Pinnacle Climate Technologies, Inc. Kerosene Forced Air Heater User’s Manual
13
Parts List
# Description MH-400T-KFA
1PCB Assembly 70-027-0800
2Fuel Cap Assembly 70-006-0200
3Pneumatic Wheel 70-041-0110
4 Photocell 70-016-0150
5 Nozzle 70-015-0750
6Fan Assembly 70-024-0700

NEVER LEAVE HEATER UNATTENDED WHILE BURNING
OR WHILE CONNECTED TO A POWER SOURCE
© 2017, Pinnacle Climate Technologies, Inc. Kerosene Forced Air Heater User’s Manual
14
Troubleshooting Guide
Problem Possible Cause Solution
Heater Ignites, but main PCB shuts
off after a short period of time.
Lamp ickers and LED display
shows “E1”.
1. Incorrect pump pressure.
2. Dirty fuel lter.
3. Nozzle is dirty.
4. Photocell lens is dirty.
5. Photocell not installed properly..
6. Improper electrical connection
between main PCB and photocell.
7. Photocell is defective
1. Adjust pump pressure (see page 10).
2. Clean / replace fuel lter (see page 10).
3. Clean / replace Nozzle (see page 8).
4. Clean / replace photocell (see page 9).
5. Adjust photocell position (see page 9).
6. Check wiring connections
(see wiring diagram on page 11).
7. Replace photocell (see page 9).
Heater will not operate or motor
runs for a short time.
Lamp ickers and LED display
shows “E1”.
1. No kerosene in the fuel tank.
2. Incorrect pump pressure.
3. Corroded spark plug or incorrect
plug gap.
4. Dirty fuel lter.
5. Dirty nozzle.
6. Moisture in fuel tank.
7. Improper electrical connection
between transformer and circuit
board.
8. Ignitor wire not connected to spark
plug.
9. Defective ignitor.
10. Air in fuel line
1. Fill tank with fresh kerosene.
2. Adjust pump pressure (see page 10).
3. Clean / replace spark plug (see
page 9).
4. Clean / replace fuel lter (see page 10).
5. Clean / replace nozzle (see page 8).
6. Rinse fuel tank with clean, fresh
kerosene (see page 7).
7. Inspect all electrical connections
(See wiring diagram on page 11).
8. Re-attach ignitor wire to spark plug
(see page 9).
9. Replace ignitor.
10. See air bleed directions, page 10.
Fan does not operate when heater
is plugged in and power switch is
in the “ON” position. The lamp is
ickering or and LED display shows
“E1” or “E2”.
1. Thermostat is set too low.
2. Broken electrical connection
between main PCB and motor.
1. Rotate thermostat to a higher
setting
2. Inspect all electrical connections
(see wiring diagram on page 11).
Lamp is ickering and LED display
shows “E3”.
1. Thermostat switch has failed.
2. Short circuit
1. Replace thermostat switch (see
wiring diagram on page 11).
2. Inspect all electrical connections
(see wiring diagram on page 11).
Lamp is ickering and LED display
shows “E4”.
1. Sensor disconnected 1. Check limit control thermostat and/
or check sensor connection
Lamp is ickering and LED display
shows “E5”.
1. Temperature limit safety device is
overheated
1. Wait until unit cools down.
Other problems 1. Poor combustion
- Flames extending beyond heater
- Low heat output
2. Power failure
- No power supply to heater
1. Poor combustion
- Align the red mark between the air
screw and pump body
2. Power failure
- Check / replace fuse

NEVER LEAVE HEATER UNATTENDED WHILE BURNING
OR WHILE CONNECTED TO A POWER SOURCE
© 2017, Pinnacle Climate Technologies, Inc. Kerosene Forced Air Heater User’s Manual
15
Limited Warranty
Pinnacle Climate Technologies, Inc. warrants this heater
to the original retail purchaser only, to be free from defects
in material and workmanship for a period of one (1) year
from the date of initial purchase. This product must be
properly installed, maintained and operated in accordance
with the instructions provided.
Pinnacle Climate Technologies, Inc. requires reasonable
proof of your date of purchase from an authorized retailer
or distributor. Therefore, you should keep your sales slip,
invoice or cancelled check from the original purchase.
This Limited Warranty shall be limited to the repair or
replacement of parts, which prove defective under normal
use and service within the warranty period, and which
Pinnacle Climate Technologies , Inc. shall determine at
its reasonable discretion.
This warranty does not apply to products purchased for
rental use.
This Limited Warranty does not cover any failures or
operating difculties due to normal wear and tear, accident,
abuse, misuse, alteration, misapplication, improper
installation or improper maintenance and service by you
or any third party. Failure to perform normal and routine
maintenance on the heater, shipping damage, damage
related to insects, birds or animals of any kind, and damage
due to weather conditions are also not covered.
In addition, the Limited Warranty does not cover damage
to the nish, such as scratches, dents, discoloration, rust or
other weather damage, after purchase.
All transportation costs for the return of damaged product
or parts will be the responsibility of the purchaser. Upon
receipt of damaged item, Pinnacle Climate Technologies,
Inc. will examine the item and determine if defective.
Pinnacle Climate Technologies, Inc. will repair or replace
and return the item, freight pre-paid.
If Pinnacle Climate Technologies, Inc. nds the item to
be in normal operating condition, or not defective the item
will be returned freight collect. This Limited Warranty is
in lieu of all other express warranties. Pinnacle Climate
Technologies, Inc. disclaims all warranties for products
that are purchased from sellers other than authorized
dealers or distributors.
AFTER THE PERIOD OF THE ONE (1) YEAR EXPRESS
WARRANTY EXPIRES, Pinnacle Climate Technologies,
Inc. DISCLAIMS ANY AND ALL IMPLIED WARRANTIES,
INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
APPLICATION. FURTHER, Pinnacle Climate Technologies,
Inc. SHALL HAVE NO LIABILITY WHATSOEVER TO PURCHASER
OR ANY THIRD PARTY FOR ANY SPECIAL, INDIRECT, PUNITIVE
INCIDENTAL, OR CONSEQUENTIAL DAMAGES. Pinnacle
Climate Technologies, Inc. assumes no responsibility for
any defects caused by third parties. This Limited Warranty
gives the purchaser specic legal rights; a purchaser may
have other rights depending upon where he or she lives.
Some states do not allow the exclusion or limitation of
special, incidental or consequential damages, or limitations
on how long a warranty lasts, so the above exclusion and
limitations may not apply to you.
Pinnacle Climate Technologies, Inc. does not authorize
any person or company to assume for it any other
obligation or liability in connection with the sale, installation,
use, removal, return or replacement of its equipment, and
no such representations are binding on Pinnacle Climate
Technologies, Inc.
Always be sure to specify the model number and serial
number when making any claim with Pinnacle Climate
Technologies, Inc. For your convenience, use the space
provided below to list this information.
Model #:________________________________
Serial #:________________________________
Date of Purchase: ________________________
Locating Your Serial Number:
Your serial number can be found on a white label on the right side cover of your heater. It will be a
series of 9 digits. For Example: 131234956. Have your Serial Number ready before calling customer
service at 800-779-3267.