Cornelius 500-Series Manuel de service télécharger pdf (Page 23)

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GEARMOTOR

OVERLOAD TRIPPED

Check water level control

and evaporator water tube

forline build-up restrictions.

Clear ice from

evaporator and

auger before

resetting overload.

CLEAN

CAUTION

See Instructions.

Overload

hot try

again.

YES

Reset overload.

Resets but

motor does

not run.

Will not

Reset.

Icemaker

runs.

IMPORTANT

Will not

reset.

Replace

overload.

Resets but

motor does

not run.

Check

gearmotor

circuits.

Short run. Trips

again in 2

minutes. Check

gearmotor circuits.

Icemaker runs when

reset but problem has

not been found.

Continue checking for

overload as follows to

guard against future

problems.

OVERLOAD GUIDE

ELECTRICAL:

S High or low voltage. Weak power lines can cause overloads on icemakers restarts.

S High running current (2.4amps or above). Check motor circuits and start relay.

S Auger delay failed.

ICEMAKER

S Mechanical parts worn. Scored evaporator or auger. Worn thrust bearing.

S Icemaker not turning off. Failed ice level control.

S Over compression. Low water inlet temperature. Restrictions in water line from reservoir.

REFRIGERANT

S Contaminated charge or bad compressor.

S Low charge or gas leak.

S Low suction pressure. Improper expansion valve. Sensing bulb location or insulation

and/or defective expansion valve.

MOTOR CHECK

The resistance readings on the winding will be between 5 to 25 ohms. A meter capable of these low readings

must be used. The start relay cover must be removed. (See Figure 16).

If no continuity on start or run winding test, replace gearmotor. If continuity on grounded motor test, replace

gearmotor.

START RELAY

1. Check between “2”and “4”on relay (with relay unplugged). If there is continuity replace the relay, as the

relay contacts should be open.

2. Check between “3”and “4”on relay, if no continuity replace the relay.

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Cornelius 500-Series Manuel de service Page 23

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