20
Maintenance
PROBLEM
POSSIBLE CAUSE
SOLUTION
POOR OR NO
DETERGENT FLOW
Inadequate detergent supply
Refill the detergent container. Ensure that
pick-up screen is fully immersed.
Detergent screen or hose clogged
Clean. Always start with a clean detergent
container.
Clogged detergent injector check
valve
Clean check valve at detergent injector.
POOR CLEANING
Improper detergent concentration
or mixing
Mix detergent per manufacturer's instruc-
tions. Ensure that powdered detergents are
fully dissolved.
Wrong detergent for application
Select appropriate detergent.
Detergent valve not opening
Check that handle or knob is not slipping on
shaft.
UNLOADER CYCLES
WHEN TRIGGER GUN IS
OPENED OR CLOSED
Air in system
Open and close trigger gun several times.
Unloader defective
Replace if defective.
Water leak between unloader valve
and trigger gun
Check fittings, hose and trigger gun for leaks.
Repair or replace.
HOTSY • CWC OPERATOR’S MANUAL • 9.801-695.0-B
