Wen PW21 Manual Download Page 11

MAINTENANCE & STORAGE

WARNING:

 Turn off the pressure washer and remove the power plug prior to performing any inspec-

tion or maintenance work. If trouble persists with your pressure washer, please call our customer help 
line at (800) 232-1195 M-F 8-5 Central Time. 

TROUBLESHOOTING

PROBLEM

CAUSE

SOLUTION

Machine stops dur-
ing operation.

1. You blew a circuit fuse.
2. Nozzle partially blocked.

1. Replace the fuse. Turn off other products sharing 
the circuit before doing so.
2. Clean the nozzle.

Machine pulsating

1. Air has collected in the inlet 
hose.
2. Insufficient water supply
3. Blocked nozzle.
4. Blocked water filter.
5. Kinked hose.

1. Allow the machine to run while holding the trig-
ger until adequate pressure returns.
2. Make sure the water tap is open as far as pos-
sible.
3. Clean the nozzle.
4. Clean the water inlet adapter filter.
5. Unkink the hose.

Machine doesn’t 
turn on.

1. Machine not plugged it.
2. Defective socket.
3. Fuse has blown.
4. Defective extension cord.
5. Bad switch or loose wiring.

1. Plug the pressure washer into a working outlet. 
2. Try a different outlet.
3. Replace the fuse.
4. Try it without an extension cord.
5. Open up the back of the unit to check the switch 
wiring and replace if necessary.

Fluctuating Pressure 1. Pump bringing in air.

2. Dirty or broken valves.
3. Pump seals are worn out.

1. Tighten the hose connections and make sure 
they are air tight.
2. Clean/replace the valves.
3. Order replacement seals (call 1-800-232-1195).

Machine starts and 
stops by itself.

1. Leaking pump/spray gun.
2. Broken trigger on spray gun.
3. Thermal sensor activated
4. Ghost in machine.

1 & 2. Call 1-800-232-1195 for assistance.
3. Leave the washer for 5 minutes to cool down.
4. Persuade the ghost to leave.

Machine starts with-
out any water

1. No water supply.
2. Frozen pump/hose.
3. Blocked water filter.
4. Blocked nozzle.

1. Connect the water supply.
2. Thaw out your frozen stuff.
3. Clean out the water inlet adapter filter.
4. Unblock and clean the nozzle.

11

STORING THE PRESSURE WASHER FOR EXTENDED PERIODS:

1. Clean the spray nozzle and water inlet adapter before preparing for storage.

2. Only store your pressure washer indoors where the temperature will stay above freezing (32°F/0°C). 

3. Always keep the pressure washer upright on a level surface. Cover the machine to protect it from dust.

4. It is recommended to run the unit with a pump protector or a pump conditioner before storing the unit for 
long periods of time. Follow the directions on your preferred pump protector or conditioner for proper use.

Summary of Contents for PW21

Page 1: ...free performance Pay close attention to the rules for safe operation warnings and cautions If you use your tool properly and for intended purpose you will enjoy years of safe reliable service IMPORTAN...

Page 2: ...ce Storage Troubleshooting Exploded View and Parts List Warranty Statement TECHNICAL DATA Model Number Motor Rated Pressure Max Pressure Max Flow Rate Rated Water Temperature Max Inlet Pressure Hose L...

Page 3: ...wn and embarrassing yourself in front of your cool neighbor Greg Hold the handles firmly to avoid injury When stepping backwards be cautious about any obstacles beneath your feet or behind you in orde...

Page 4: ...ways wear safety goggles to protect from possible mishaps with the stream or detergents Always be aware of the dangers associated with the detergents and chemicals that you are working with 7 Attach a...

Page 5: ...instead of grounding No grounding means is provided on a double insulated product nor should a means for grounding be added to the product Servicing a double insulated product requires extreme care a...

Page 6: ...er 1 2 3 4 5 6 7 8 Trigger Gun Trigger with Safety Lock High Pressure Hose Connector Gun Holder Spray Lance Quick Connect Collar Gun Stock Handle 1 2 8 3 9 4 10 5 11 6 12 15 7 13 16 14 9 10 11 12 13 1...

Page 7: ...to flush out any debris WARNING The intake water temperature must not exceed 104 F 40 C The water supply must not exceed 101 PSI 700 kPa CAUTION Only use clean water for the pressure washer Use of unf...

Page 8: ...ellow for tough jobs like stripping paint removing oil stains grease or rust 0 nozzle red for powerful spot cleaning or hard to reach areas Use extreme caution when using this nozzle Soap nozzle black...

Page 9: ...with your detergent about how it should be prepared and used PREPARING AND RUNNING THE PRESSURE WASHER 1 Make sure that the washer is standing on a secure stable surface to prevent it from tipping dur...

Page 10: ...y use to prevent nozzles from clogging and ensure good performance of the machine 1 Release the trigger shut off the unit unplug the power plug and turn off the water 2 Remove the nozzle from the spra...

Page 11: ...unit to check the switch wiring and replace if necessary Fluctuating Pressure 1 Pump bringing in air 2 Dirty or broken valves 3 Pump seals are worn out 1 Tighten the hose connections and make sure th...

Page 12: ...12 EXPLODED VIEW AND PARTS LIST 83 84...

Page 13: ...W21 040 Three Way Valve Sheath 1 41 PW21 041 U Pin 2 42 PW21 042 Rubber Mat 1 43 PW21 043 O Ring11 2X2 65 80Hs Rohs 2 No Part No Description Qty 44 PW21 044 Three Way Valve 1 45 PW21 045 O Ring7 5X2 8...

Page 14: ...EXPLODED VIEW AND PARTS LIST PUMP 14...

Page 15: ...linder Head 1 15 PW21 115 Screw 1 16 PW21 116 O Ring 1 17 PW21 117 Inner Hexagon Screw 4 18 PW21 118 Elastic Washer 4 19 PW21 119 Washer 4 20 PW21 120 Y Ring 3 21 PW21 121 Inlet Valve Kit 3 22 PW21 12...

Page 16: ...prod uct must be shipped in its original container or an equivalent properly packed to withstand the hazards of ship ment The product must be fully insured with a copy of the warranty card and or the...

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