14
VIII - TROUBLESHOOTING
Problem
Cause
Correction
Pump has following problems:
failure to produce pressure,
erratic pressure, chattering, loss
of pressure, low water volume.
1. Nozzle in low pressure mode.
2. Water inlet is blocked.
3. Inadequate water supply.
4. Inlet hose is kinked or leaking.
5. Clogged inlet hose strainer.
6. Water supply is over 37°C
(100°F)
7. High pressure hose is blocked
or leaks.
8. Gun leaks.
9. Orifice is obstructed.
10. Pump is faulty.
1. Pull nozzle backward for high
pressure mode.
2. Clear inlet.
3. Provide adequate water flow.
4. Straighten inlet hose, patch
leak.
5. Check and clean inlet hose
strainer.
6. Provide cooler water supply.
7. Clear blocks in outlet hose.
8. Replace gun.
9. Clean orifice.
10. Contact local service facility.
Detergent fails to mix with spray.
1. Detergent siphoning tube is not
submerged.
2. Chemical filter is clogged or
cracked.
3. Dirty in-line filter.
4. Nozzle is in high pressure
mode.
1. Insert detergent siphoning tube
into detergent.
2. Clean or replace
filter/detergent siphoning tube.
3. See "Check In-Line Filter".
4. Push nozzle forward for low
pressure mode.
Engine runs good at no-load but
"bogs" when load is added.
Engine speed is too slow.
Move throttle control to FAST
position. If engine still "bogs
down", contact Mac Allister service
facility.
Pressure washer stops during
operation.
Out of petrol.
Fill petrol tank.
