Powersmart PS20 User manual

MODEL: PS20
High Pressure Cleaner
Operator Manual
BEFORE OPERATING THIS APPLIANCE
PLEASE READ THESE INSTRUCTIONS CAREFULLY

1
MODEL PS20 OVERVIEW
Item Description
1. Water inlet
2. On/off switch
3. High pressure washer
4. Hose Reel with Trigger Gun Hose
5. Hose Reel Handle
6. Water outlet (backside)
7. Mobile adapter bracket with wheel
8. Adjustable Spray Wand
9. Gun
APPLICATION
PS20 PORTABLE PRESSURE WASHING MACHINE is a highly specialized multifunctional
machine with exceptionally reliable safety assurance, which may be used to wash and clean cars,
bikes and other outdoor equipment or garden patios, green houses etc.
Helpful Hints for Getting Started
Automatic ON/OFF:
The motor on this pressure washer does not run continuously. It only runs when the
trigger of the spray gun is squeezed. After following the start up procedures in this manual,
turn the pressure washer ON and squeeze the trigger for activation. See the section of
this manual entitled “Operating Instructions” for further details on this feature.
Bleeding the Gun:
It is very important to bleed the gun before using the pressure washer. Squeeze the trigger
to allow any air that is trapped inside of the unit and hose to escape. Continue to squeeze
trigger until a steady stream of water comes from the nozzle. (This process may take up
to 2 minutes). See the section of this manual entitled “Operating Instructions” for further
details on this process.
IMPORTANT SAFEGUARDS INSTRUCTIONS:
(Save these instructions)
SAFETY WARNINGS AND PRECAUTIONS
When using this product basic precautions should always be followed, including the following:
·Read all the instructions before using this products.
·To reduce the risk of injury, close supervision is necessary when a product is used near children.
·Know how to stop the product and bleed pressures quickly. Be thoroughly familiar with the
controls
·Stay alert-watch what you are doing.
·Do not operate the product when fatigued or under the influence of alcohol or drugs.

2
·Keep operating area clear of all persons.
·Do not overreach or stand on unstable support, Keep good footing and balance at all time.
·Follow the maintenance instructions specified in the manual.
·This product is provided with A Ground Fault Circuit Interrupter Built into the power cord plug.
If replacement of the plug or cord is needed, Use only identical replacement parts.
·Warning-Risk of injection or injury-Do not direct discharge stream at persons.
·Keep all connections dry and off the ground;
GROUNDING INSTRUCTIONS:
This product must be grounded. If it should have malfunction or breakdown, grounding provides a
path of least resistance for electric current to reduce the risk of electric shock. This product is
equipped with a cord having an equipment-grounding conductor and a grounding plug. The plug
must be plugged into the appropriate outlet that is properly installed and grounded in accordance
with all local codes and ordinances.
DANGER-Improper connection of the equipment-grounding conductor can result in a risk of
electrocution. 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.
GROUND FAULT CIRCUIT INTERRUPTER PROTECTION:
This pressure washer is provided with a ground fault circuit interrupter (GFCI) built into the plug of
the power supply cord. This device provides additional protection from the risk of electric shock.
Should replacement of the plug or cord become necessary, use only identical replacement parts that
include GFCI protection .
EXTENSION CORDS:
Use only 3-wire extension cords that have 3-prong grounding-type plugs and 3-pole cord
connectors that accept the plug from the product. Use only extension cords that are intended for
outdoor use. These extension cords are identified by a marking “Acceptable for sue with outdoor
appliances; store indoors while not in use.” Use only extension cords having an electrical rating not
less than the rating of the product. Do not use damaged extension cords. Examine extension cord
before using and replace if damaged. Do not abuse extension cord and do not yank on any cord to
disconnect. Keep cord away from heat and sharp edges. Always disconnect the extension cord from
the receptacle before disconnecting the product from the extension cord.
GENERAL SAFETY REGULATIONS
WARNING: Keep operating area clear off all persons.
WARNING: Before each use pressure must be released! Trigger on wand then start the washer

3
WARNING: Do not overreach or stand on unstable support. Keep good footing and balance at all
times.
WARNING: Follow the maintenance instructions specified in the manual.
WARNING: To reduce the risk of electrocution, don’t start and run the machine in the rain or
storm. Keep all connections dry and off the ground. Do not touch plug with wet hands. It is strictly
prohibited to let water leak into the machine.
WARNING: When the machine is turned on, the interior pumps start and continue to run even if
the pressure wand trigger has not been depressed. Running the machine for more than 3 minutes
without depressing the pressure wand trigger could cause heat damage to the motor and pumps,
Please do not leave the machine running unattended or unused for more than 3 minutes.
WARNING: When the machine is running, please maintain a constant water supply. Without water
circulation will damage the sealing rings of the machine.
WARNING: It is necessary to turn on the spray lance within one or two minutes after the machine
has been started. Otherwise, the temperature of the circulating water within the machine will soon
rise to a critical point, which will cause damage to the sealing rings inside the machine.
WARNING: Don’t start and run the machine in a place excessively cold so as to prevent the
machine from freezing.
WARNING: This appliance has been designed for only using cleaning water, do not use corrosive
chemicals.
WARNING: Do not use the appliance within the range of people
WARNING: Do not direct the jet against yourself or others in order to clean clothes or footwear.
WARNING: Disconnect from the electrical power supply before carrying out user maintenance.
WARNING: To ensure the appliance safety to please use only original spare parts from the
manufacturer or approved by the manufacturer. Do not use the machine before you change them if
they are damaged. OPERATING INSTRUCTIONS
! This unit is to be connected to a cold water source ONLY.
! The motor of this pressure washer will NOT run. It will only operate when the trigger is
squeezed.
- Connect the outlet hose to the washer and connect the spray gun to the outlet hose.
- Connect nozzle and nozzle extension.
- Check gauze filter is clear of any blockage.
- Connect the water supply hose.
- Check that the hose has no kinks in it.
- Turn on water and check for leaks.
- Depress trigger to allow air to be expelled though the pump and hoses, lock trigger.
- Plug in machine and turn on switch.
- Unlock trigger and use the pressure washer.

4
Shut down
1. Turn off the motor (push switch to the off position).
2. Unplug the unit from the power source.
3. Turn off the water supply.
4. Press the trigger of the gun to depressurize the system.
5. Disconnect the garden hose from the pressure washer.
6. Wipe all surfaces of the unit with a damp clean cloth.
7. Engage the gun safety lock.
CAUTION: ALWAYS turn off the unit’s motor BEFORE turning off the unit’s water supply.
Serious damage could occur to the motor if the unit is run without water.
CAUTION: NEVER disconnect the high-pressure discharge hose from the machine while the
system is still pressurized. To depressurize the unit, turn off the motor, turn off the water supply
and squeeze the trigger 2-3 times.
ADJUSTABLE SPRAY NOZZLE
Turn off the spray lance first, hold the rear part of spray nozzle, then turn the front part of spray
nozzle clockwise, Water may be sprayed out from the spray nozzle in fan shapes (fig 2); Turn the
front part of spray nozzle counterclockwise, Water may be sprayed out from the spray nozzle
linearly (fig 1).
CAUTION: Water should be sprayed out from the spray nozzle in fan shapes (fig 2), when
cleaning the car or other vehicle.
Low/High Pressure Adjustable Lance
Using High Pressure:
Please make sure the trigger released and there is not any water spraying, then turn the rear part of
spray nozzle counterclockwise (fig 4). Squeeze the trigger, the gun will spray water with high
pressure.
Using low pressure:
Please make sure the trigger released and there is not any water spraying, then turn the rear part of
spray nozzle clockwise ( fig 3). Squeeze the trigger, the gun will spray water with low pressure.
CAUTION: Selection of high or low pressure by turning action. The selection of the pressure must
be carried out with the gun in closed position.
Fig 1 Fig 2 Fig 3

5
Fig 4 Fig 5
WATER INLET SCREEN
The water inlet filter must be inspected regularly, so as to avoid blockage and restriction in the
water supply to the pump (fig 5).
Fig6 Fig 7
USING DETERGENT
Add detergent to the container. Set the Adjustable Spray Wand at low pressure position. (Fig 6)
Trigger gun to spray detergent.
HOSE-REEL HANDLE
The hose reel handle turns down for use and up for storage. To turn up the handle, pull out and turn
up. (Fig 7)
LONG TERM STORAGE
The PS20 should be stored in a frost-free environment.
After long-term storage without operation, it is possible to form scales inside the machine making it
hard to start again. In such conditions it is recommended to turn off and disconnect the power
supply and rotate the motor by hand several times so as to avoid excessive current draw on the
motor and the power supply.
GUN SAFETY DEVICE
Whenever you use the high pressure washer, we suggest you grip the in the right position, with one
hand on the handle and the other on the lance, When you stop the machine it is necessary to use the
safety lock placed on the gun in order to avoid accidental.

6
CLEANING PIN INSTRUCTION
• Using included tip cleaner, or an unfolded paper clip, insert wire into the nozzle hole
and move back and forth until debris is dislodged.
• Remove additional debris by back-flushing water through the nozzle. To
do this, place end of a garden hose ( with water running ) to the end of nozzle for
30-60 seconds.
MAJOR TECHNICAL DATA
ITEM
PS20
Working Pressure
1600 psi
Max Flow Rate
1.4 GPM
Rated Electrical Current
13 A
Power Supply Voltage
120V/60Hz
Inlet Water Pressure
40-60 psi
Motor Rotation Speed
3400 RPM
Max. Water Temperature
122 ℉
Weight (Pounds)
45Ib
Dimensions (Inches)
37.0x 15.7x 15.1

7
TROUBLE SHOOTING
FAULT
PROBABLE CAUSE
REPAIR
When
switched on
the machine
will not start
working
Plug is not well connected or electric
socket is faulty.
The main voltage is insufficient,
lower than minimum requirement
The pump is stuck.
Thermal safety switch has tripped
Check plug, socket
Check that the main voltage is
adequate.
Refer to after storage instructions.
Switch off the unit and let the motor
cool for a few minutes
Leave the lance open
Fluctuating
Pressure
Pump sucking air.
Valves dirty, worn out or stuck.
Pump seals worn out.
Check that hoses and connections
are airtight.
Clean and replace, or refer to dealer.
Water leaking
from the
pump.
Seals worn out.
Check and replace, or refer to dealer.
The motor
stops
suddenly.
Thermal safety switch has tripped
due to overheating.
Check that the main voltage
corresponds to specifications.
Switch off the unit and let it cool for
a few minutes.
The pump
doesn’t reach
the necessary
pressure.
Water inlet filter is clogged.
Pump sucking air from connections
or hoses.
Suction/ delivery valves are clogged
or worn out.
Unloaded valve is stuck.
Lance nozzle incorrect or worn out.
Clean the water inlet filter.
Check that all supply connections
are tight
Check that the water feeding hose is
not leaking.
Clear or replace valves.
Loosen and re-tighten regulation
screw.
Check and/or replace

8
INSTALLATION, ELECTRICAL AND WATER CONNECTIONS
1. PRESSURE CLEANER
2. WATER SUPPLY HOSE
3. WATER CONNECTION
4. WATER INLET
5. HIGH PRESSURE TUBE
6. HIGH-PRESSURE, WATER OUTLET
7. SPRAY GUN
8. POWER SUPPLY
Note ： The company reserves the right to modify its product
specifications without given any notice; for up to date
information please visit our website.

9
©2015 Amerisun Inc., Itasca, IL