Troubleshooting Chart - CMA Dishmachines UC65e M3 Installation & Operation Manual

Maintenance
Maintenance - Troubleshooting Chart
Condition
Dishwasher will not run.
Low or no water.
Temperature display
indicates "LP"
Chemicals won't feed into
dishwasher.
Low water pressure
pumped from wash spray
arms.
Poor wash results.
Water has drained out of
the wash tank while the
dishwasher was idle.
WAIT light is on for an
extended period of time.
Dishwasher stays in
wash cycle for an
extended period of time..
20
Cause
Door not closed.
Main power OFF.
Dishwasher OFF.
Main water supply off.
Fill hose kinked.
Low incoming water pressure
Solenoid valve defective.
Solenoid strainer clogged.
Chemical supply low.
Supply tubing damaged.
Supply tubing kinked.
Pick-up tube clogged
Squeeze tube or diaphragm bad.
Clogged scrap screen.
Clogged spray arms.
Clogged pump intake screen.
Excessively hard water.
Water temperature low.
Thermistor defective.
(See chemicals won't feed
above.)
(See low or no water above.)
Chemical injector defective.
Wares incorrectly loaded.
in dishrack.
Booster high limit tripped.
Wash tank high limit tripped.
Rinse jets clogged
Anti-siphon loop in drain
hose has been removed.
Drain hose clamp is not
holding the drain hose
in proper position.
Building plumbing does not
provide correct air vent
to prevent siphoning.
Incoming water supply cold
Rinse Sentry extends wash mode
for a maximum time of 5-minutes
to allow final rinse water booster
Solution
Close door completely.
Check breaker on panel.
Turn dishwasher power switch ON.
Open supply valve.
Straighten fill hose.
Check for kinked or damaged lines.
Set flowing water pressure to 20-22 PSI.
Install repair kit or replace.
Clean strainer.
Refill chemical container.
Replace tubing.
Straighten tubing.
Clean/replace tube.
Replace defective components.
Clean scrap screen.
Clean spray arms.
Inspect sump and clean pump intake
screen.
Contact chemical supplier.
Raise incoming water
temperature to 140°F
Replace thermistor.
(See chemicals won't feed
above.)
(See low or no water above.)
Replace squeeze tube.
Replace injector motor.
Clean tubing and pick-up.
Reposition wares or reduce amount of
wares in dish racks.
Reset or replace high limit.
Reset or replace high limit.
Delime the rinse arms and clean the
rinse jets with paper clip.
Re-route drain hose.
DO NOT STRETCH HOSE
Replace/adjust hose clamp
making sure goose-neck
is maintained.
Contact service Agent
and/or plumber.
Raise incoming water temperature.
Replace final rinse booster thermistor.