Moyer Diebel 501HTN ユーザーズマニュアル

Condition 

Cause 

Solution

Dishwasher will not run.

Low or no water.

Chemicals won’t feed into

dishwasher.

Door not closed.

Main power OFF.

Dishwasher OFF. 

Main water supply off.
Solenoid valve defective.
Solenoid strainer clogged.
Flow washer defective.
Timer board defective. 

Chemical supply low.
Supply tubing damaged.
Supply tubing kinked.
Pick-up tube clogged
Timer board defective. 

Close door completely.

Check breaker on panel.

Turn dishwasher ON. 

Open supply valve.
Install repair kit or replace.
Clean strainer.
Replace flow washer.
Test/replace timer board.

Refill chemical container.
Replace tubing.
Straighten tubing.
Clean/replace tube.
Test/replace timer board.

Low water pressure

pumped from spray arms.

Clogged scrap screen.
Clogged spray arms.
Clogged pump intake 

screen.

Clean scrap screen.
Clean spray arms.
Clean sump and pump 

intake screen.

Water has drained out of 

the wash tank while the 

dishwasher was idle.

Goose-neck 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. 

Re-route drain hose.

DO NOT STRETCH HOSE
Replace/Adjust hose clamp

making sure goose-neck

is maintained.
Contact Service Agent

and/or plumber.

(HT models only) 

dishwasher stays in

wash cycle.

Rinse Sentry extends 

wash mode for a maximum 

time of 5-minutes to allow 

final rinse water booster 

temperature to reach 

180˚F/82˚C.
(501HT only) dishwasher is 

in Extended Wash Mode.

Raise incoming water 

temperature.
Adjust/replace final rinse 

booster thermostat.

Turn Extended Wash Mode

off.

Poor wash results.

Water temperature low.

Thermostat defective.
(See chemicals won’t feed

 above.)
(See low or no water 

above.)
Detergent injector defective.

Wares incorrectly loaded. 

in dishrack.

Raise incoming water

temperature.
Adjust/replace thermostat.
(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.