Hotsy 1424SS Operator's Manual page 18

SYMPTOM
PRESSURE
WASHER WILL NOT
PRODUCE HOT
WATER
(Continued)
POOR OR NO
DETERGENT
FLOW
POOR CLEANING
UNLOADER
CYCLES WHEN
TRIGGER GUN IS
OPENED OR CLOSED
BURNER
SMOKES OR HAS
OBNOXIOUS ODOR
PRESSURE
RELIEF VALVE
LEAKING
18
TROUBLESHOOTING
POSSIBLE CAUSES
Inadequate water supply
Trigger of trigger
gun released
Thermostat set too
low, or defective
Manual gas valve not open
Defective gas valve
Inadequate detergent supply
Detergent screen or hose clogged
Clogged detergent injector check
valve
Improper detergent concentration
or mixing
Wrong detergent for the application Select appropriate detergent.
Rinsing with hot water
Detergent valve not opening
Air in system
Unloader defective
Water leak between unloader valve
and trigger gun
Stack restriction
Excessive pressure due
to defective unloader valve
Defective relief valve
Dirty relief valve
HOTSY • 900-1400 • 8.914-405.0 GAS FIRED • Rev. 8/11b
CORRECTIVE ACTION
Fully open faucet. Check for kinked
or damaged hose. Use 5/8" minimum hose.
Check for debris clogging inlet screen.
Squeeze trigger. Water must
be spraying for burner to light.
Raise thermostat setting.
Replace if defective.
Turn ON gas valve.
Replace gas valve.
Refill detergent container. Ensure
that pick-up screen is fully immersed.
Clean. Always start with a
clean detergent container.
Clean check valve
at detergent injector.
Mix detergent per manufacturer's
instruc-tions. Ensure that powdered
detergents are fully dissolved.
A final rinse with cold
water will reduce water spotting.
Check that handle or
knob is not slipping on shaft.
Open and close trigger
gun several times.
Replace if defective.
Check fittings, hose and trigger
gun for leaks. Repair or replace.
See Venting
under Installation.
Replace
unloader valve.
Replace relief valve.
Clean relief valve seat