Hotsy Gas Belt Drive • 8.931-236.0 • REV. 7/13
PRESSURE
W
ASHER
Tr
oub
leshooting Guide
16
TROUBLESHOOTING
SymPTOm
POSSIBLE CAUSES
CORRECTIVE ACTION
ENGINE WILL
NOT RUN
no fuel
Replenish supply.
Low battery
charge battery.
Poor battery cable connection
clean battery terminals and check cables.
Refer to provided engine manual for additional troubleshooting
NO WATER
FROm PRESSURE
NOzzLE
Pressure nozzle clogged
clean pressure nozzle.
Inlet water screen clogged
clean.
Pump sucking air
Fill the detergent container. check for
loose hose clamps or fittings.
POOR
OR NO
DETERGENT
FLOW
Low detergent level
Replenish supply.
detergent screen clogged
clean.
detergent metering valve not
opening
check that handle or knob is not slipping
on shaft.
Pressure nozzle clogged
clean.
LOW PRESSURE
FROm SPRAy
NOzzLE
Inlet clogged
clean.
Spray nozzle worn or
incorrect size
Replace.
Inadequate water supply
Increase water supply.
Pump sucking air
Fill the detergent container. check for
loose hose clamps or fittings.
UNLOADER VALVE
CyCLES WHEN
TRIGGER GUN IS
OPEN OR CLOSED
Air in system
Open and close trigger gun several times.
defective unloader valve
Repair or replace.
Water leak between unloader
valve and trigger gun
check fittings, hose and trigger gun for
leaks. Repair or replace.
BURNER WILL
NOT IGNITE
WHEN TRIGGER
GUN IS OPEN
no fuel
Replenish supply.
Adjustable thermostat set too
low
Raise temperature setting.
defective pressure switch
Repair or replace.
electrodes are dirty or out of
adjustment
Refer to Oil Burner Manual provided with
machine.
no Ac generator output
check Ac generator.
BURNER
SmOKES OR HAS
OBNOxIOUS ODOR
Air bands need to be adjusted
Readjust. Refer to Oil Burner Section
under Installation.
Improper fuel
Use kerosene, #1 Grade Home Heating
Oil, #1 or #2 diesel Fuel
.
DO NOT USE GASOLINE.
