Hotsy 1.109-660.0, Service Manual

Page: 10 / 32

10
Maintenance
Troubleshooting
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION
PRESSURE
WASHER
WILL NOT
RUN
Pump switch in OFF position Place switch in ON position.
Power supply disconnected Connect power supply.
Fuse blown or circuit breaker
tripped in electrical supply line Replace fuse or reset circuit breaker. Use only
circuits of adequate capacity.
Motor circuit overload tripped
Allow sufficient time for motor to cool down. Place
pump switch in ON position.
PRESSURE
WASHER
RUNS BUT
WON’T SPRAY
Trigger of trigger gun released Squeeze trigger.
Water supply not turned on Open water supply valve.
Clogged pressure nozzle Clean pressure nozzle opening.
Inlet water screen clogged Check screen and clean if necessary.
Pump sucking air
Fill the detergent container and check for loose
hose clamps or fittings.
LOW SPRAY
PRESSURE
AT NOZZLE
Inadequate water supply
Fully open faucet. Check for kinked or damaged
hose. Use 5/8" minimum hose. Check for debris
clogging inlet screen.”
Partially clogged or damaged
pressure nozzle
Clean or replace.
Air being drawn through
detergent inlet line Refill detergent container. Ensure that pick-up
screen is fully immersed.
UNEVEN
SPRAY
PATTERN
Partially clogged or damaged
pressure nozzle
Clean or replace.
PRESSURE
WASHER
WILL NOT
PRODUCE
HOT WATER
Burner switch in OFF position Place switch in ON position.
Gas valve switch in OFF
position
Place switch in ON position.
Inadequate fuel supply Check fuel supply.
Pump switch turned off Pump must be running before burner will light.
Inadequate water supply
Fully open faucet. Check for kinked or damaged
hose. Use 5/8" minimum hose. Check for debris
clogging inlet screen.
Trigger of trigger gun released
Squeeze trigger. Water must be spraying for burner
to light.
Thermostat set too low, or
defective
Raise thermostat setting. Replace if defective.
Manual gas valve not open Turn ON gas valve
Defective gas valve Replace gas valve.
HOTSY 1800 GAS FIRED SERIES 8.916-993.0 - AL