Troubleshooting - Husqvarna Pressure Washer Operator's Manual

Troubleshooting

Problem
Pump has following problems:
failure to produce pressure, erratic
pressure, chattering, loss of
pressure, low water volume.
Detergent fails to mix with spray.
Engine runs good at no-load but
"bogs" when load is added.
Engine will not start; starts and runs
rough, or shuts down during
operation.
Engine lacks power.
Cause
1. Low pressure spray tip installed.
2. Water inlet is blocked.
3. Inadequate water supply.
4. Inlet hose is kinked or leaking.
5. Clogged inlet hose screen.
6. Water supply is over 100°F.
7. High pressure hose is blocked or
leaks.
8. Spray gun leaks.
9. Spray tip is obstructed.
10. Pump is faulty.
1. Detergent shut-off valve is in the
"Off" position.
2. Detergent siphoning tube is
clogged or cracked.
3. High pressure spray tip installed.
4. Check ball stuck in detergent
siphoning system.
Engine speed is too slow.
1. Low oil level.
2. Dirty air cleaner.
3. Out of fuel.
4. Stale fuel.
5. Spark plug wire not connected to
spark plug.
6. Bad spark plug.
7. Water in fuel.
8. Excessively rich fuel mixture.
Dirty air filter.
Correction
1. Replace with high pressure spray tip.
2. Clear inlet.
3. Provide adequate water flow.
4. Straighten inlet hose, patch leak.
5. Check and clean inlet hose screen.
6. Provide cooler water supply.
7. Clear blocks in outlet hose or replace
hose.
8. Replace spray gun.
9. Clean spray tip.
10. Contact local service facility.
1. Rotate detergent shut-off valve to
"On" position.
2. Clean or replace detergent siphoning
tube.
3. Replace with low pressure spray tip.
4. Unstick check ball as described in
Detergent Siphoning Check Ball.
Move throttle control to FAST position. If
engine still "bogs down", contact local
service facility.
1. Fill crankcase to proper level.
2. Clean or replace air cleaner.
3. Fill fuel tank.
4. Drain fuel tank; fill with fresh fuel.
5. Connect wire to spark plug.
6. Replace spark plug.
7. Drain fuel tank; fill with fresh fuel.
8. Contact local service facility.
Replace air filter.
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