15
H i g h P r e s s u r e W a s h e r
Generac 1800PSI High Pressure Washer
TROUBLESHOOTING POINTS
GENER
A
C
Problem
Cause
Correction
Pump has following problems:
1. Nozzle in low pressure mode.
1. Pull nozzle backward for high
failure to produce pressure, erratic
pressure mode.
pressure, chattering, loss of pressure,
2. Water inlet is blocked.
2. Clear inlet
low water volume.
3. Inadequate water supply.
3. Provide adequate water flow.
4. Inlet hose is kinked or leaking.
4. Straighten inlet hose, patch leak.
5. Clogged inlet hose strainer.
5. Check and clean inlet hose
strainer.
6. Water supply is over 140°F.
6. Provide cooler water supply.
7. Outlet hose is blocked or leaks.
7. Clear blocks in outlet hose.
8. Gun leaks.
8. Replace gun.
9. Nozzle is obstructed.
9. Clean nozzle.
10. Pump is faulty.
10. Contact Generac service facility.
Detergent fails to mix with spray.
1. Detergent siphoning tube
1. Insert detergent siphoning tube into
is not submerged.
detergent.
2. Chemical filter is clogged.
2. Clean or replace filter/detergent
siphoning tube.
3. Nozzle is in high pressure mode.
3. Push nozzle forward for low
pressure mode.
Engine runs good at no-load but bogs
Engine speed is too slow.
Move throttle control to FAST .
when load is added.
position. If engine still bogs down
contact Generac service facility.
Engine will not start; or starts
1. Low oil level.
1. Fill crankcase to proper level.
and runs rough.
2. Dirty air cleaner.
2. Clean or replace air cleaner.
3. Out of gasoline.
3. Fill fuel tank.
4. Stale gasoline.
4. Drain gas tank; fill with fresh fuel.
5. Spark plug wire not connected
5. Connect wire to spark plug.
to spark plug.
6. Bad spark plug.
6. Replace spark plug.
7. Water in gasoline.
7. Drain gas tank; fill with fresh fuel.
8. Overchoking.
8. Open choke fully and crank
engine.
9. Excessively rich fuel mixture.
9. Contact Generac service facility.
10. Intake valve stuck open or closed.
10. Contact Generac service facility.
11. Engine has lost compression.
11. Contact Generac service facility.
Engine shuts down during operation.
1. Out of gasoline.
1. Fill fuel tank.
2. Low oil level.
2. Fill crankcase to proper level.
Engine lacks power.
Dirty air filter.
Replace air filter.
Engine hunts or falters.
Choke is opened too soon.
Move choke to halfway position
until engine runs smoothly.
