DeVillbiss Air Power Company 3540CWHP, D20249 Troubleshooting, Problem Cause Correction

Page 17

TROUBLESHOOTING

 

 

PROBLEM

CAUSE

CORRECTION

 

Engine will not start

1.

No fuel.

1.

Add fuel.

 

(see Engine Manual for

2.

Low oil (if oil-alert equipped).

2.

Add required amount of oil.

 

further engine trouble-

3.

Pressure buildup after initial use.

3.

Squeeze gun trigger to relieve pres-

 

shooting)

4.

Not primed or choked.

 

sure.

 

 

 

 

4.

Push primer bulb 3 times or choke

 

 

 

 

5.

Spark plug wire not attached.

 

engine.

 

 

 

 

5.

Attach spark plug wire.

 

 

 

 

6.

Engine ON/OFF switch in OFF

6.

Place engine ON/OFF switch to ON

 

 

 

 

 

position (If equipped.)

 

position.

 

No or low pressure

1.

Wrong nozzle selected.

1.

Refer to page 11 for proper nozzle

 

(initial use)

2.

Low water supply.

 

selection.

 

 

 

 

2.

Water supply must be at least 5 GPM

 

 

 

 

3.

Leak at high pressure hose.

 

@ 20 PSI

 

 

 

 

3.

Repair leak. Apply thread sealing tape

 

 

 

 

4.

Nozzle obstructed.

 

if necessary.

 

 

 

 

4.

Clean nozzle with nozzle cleaning tool,

 

 

 

 

5.

Water filter screen clogged.

 

flush out obstruction with clean water.

 

 

 

 

5.

Remove and clean filter.

 

 

 

 

6.

Defective E-Z start valve.

6.

Check with Authorized Warranty

 

 

 

 

 

(If applicable)

 

Service Center (AWSC.)

 

 

 

 

7.

Air trapped in hose.

7.

Turn off engine, then water supply.

 

 

 

 

 

 

 

Disconnect water supply from pump

 

 

 

 

 

 

 

inlet, then turn water supply on to

 

 

 

 

 

 

 

remove all air from hose. When there is

 

 

 

 

 

 

 

a steady stream of water present, turn

 

 

 

 

 

 

 

water supply off. Reconnect water

 

 

 

 

 

 

 

supply to pump inlet and turn on water

 

 

 

 

 

 

 

supply. Squeeze trigger of spray gun

 

 

 

 

 

 

 

to remove remaining air.

 

 

 

 

 

 

 

 

 

 

Will not draw chemicals

1.

Low pressure nozzle not in

1.

See Using Chemicals/Cleaning Sol-

 

 

 

 

 

wand.

 

vents in the Operation section.

 

 

 

 

2.

Chemical filter clogged.

2.

Clean filter. See How To Clean Water

 

 

 

 

3.

Chemical hose not in chemical.

 

Inlet Filter in Maintenance section.

 

 

 

 

3.

Ensure end of chemical hose is fully

 

 

 

 

 

 

 

submerged into chemical.

 

 

 

 

 

 

 

 

 

No or low pressure after

1.

Worn seal or packing.

1.

Have replaced by AWSC.

 

a period of normal use.

2.

Worn or obstructed valves.

2.

Have replaced by AWSC.

 

 

 

 

 

 

 

 

 

 

Water leaking at gun to

1.

Worn o-ring.

1.

Check and replace.

 

wand connection

2.

Loose hose connection.

2.

Tighten connection. If leak persists,

 

 

 

 

 

 

 

disassemble connection, apply thread

 

 

 

 

 

 

 

sealing tape to threads and reassemble

 

Water leaking at pump

1.

Loose connections.

1.

Tighten.

 

 

 

 

2.

Piston packings worn.

2.

Have replaced by AWSC.

 

 

 

 

 

 

 

 

 

Oil leaking at pump

1.

Oil seals worn.

1.

Have replaced by AWSC.

 

 

 

 

2.

Loose drain plug.

2.

Tighten.

 

 

 

 

3.

Worn fill plug o-ring.

3.

Check and replace.

 

 

 

 

5.

Pump overfilled.

4.

Check for correct amount.

 

 

 

 

5.

Incorrect oil used.

5.

Drain and fill with correct amount

 

 

 

 

 

 

 

and type of oil.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

17 — ENG

D20249

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Contents Pressure Washer Safety Guidelines Definitions Table of ContentsOwners Responsibilities Pressure Washer Return PolicyResponsibility of Original Purchaser Initial User WarrantyHazard What can Happen HOW to Prevent IT Important Safety InstructionsHazard What can Happen HOW to Prevent IT Unpacking Contents of CartonAssembly Basic Elements of Engine OperationBasic Elements of a Pressure Washer Pressure Adjustment Bypass ModePressure Washer Terminology Thermal Relief ValveChanging Nozzles HOW to Siphon CHEMICALS/CLEANING SolventsPressure Washer Basics Operation Before Starting Typical HOOK-UP PRE-START ChecklistTurn engine switch to on position Shutting Down Your Pressure Washer Engine Pump MaintenanceStorage HOW to Clean the Water Inlet FilterProblem Cause Correction TroubleshootingRepair Parts ENG D20249 Quick Facts Pressure Washer Quick Facts

3540CWHP, D20249 specifications

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