Maytag MTB1504ARW Operations Instructions download pdf (Page 31)

WARNING

To avoid risk of electrical shock that can cause death or severe personal injury, disconnect unit from power before

servicing unless tests require power. Discharge capacitors through a 10,000-ohm resistor before handling. Wires

removed during disassembly must be replaced on correct terminals to ensure proper grounding and polarization.

Shunt made of 14-gauge wire

3. Test points T and H will verify the bimetal

thermostat is open or closed.

• Force motor run by shunting T to H.

• If motor doesn't run, motor is faulty. Replace ice

maker.

• If motor does run, bimetal thermostat is faulty.

Replace ice maker.

NOTE: Make sure freezer temperature is cold enough

to close the bimetal thermostat.

4. Leave jumper in for half a revolution, then touch

heater mold.

• If mold feels warm, heater works properly.

• If mold doesn't feel warm, heater is faulty.

Replace ice maker.

5. Remove jumper and water valve will energize in

last half of revolution, if mold heater has not

failed.

NOTE: Make sure freezer temperature is cold enough

to close the bimetal thermostat.

MODULE OHMMETER CHECKS

(NO POWER TO ICE MAKER;

EJECTOR BLADES IN END-OF-CYCLE POSITION)

EST

OINTS

OMPONENT

ODULE

OSITION

HMS

L & H Mold Heater Attached

to support

264

L & M Motor Separated

from heater

16,100

MODULE VOLTAGE CHECKS WITH METER OR TEST LIGHT

(POWER TO ICE MAKER)

EST

OINTS

OMPONENT

INE

OLTAGE

VOLTS

L & N Module Power OK No Power

T & H Bimetal Open Closed

L & H Heater On Off

L & M Motor On Off

N & V Water Valve On Off

Disassembly

NOTE: Mold & heater assembly, module assembly,

support assembly and thermostat are not

replaceable. If any of those components are

faulty, ice maker must be replaced as a unit.

1. Snap plastic cover off module.

2. Pull shut-off arm out back of support assembly.

NOTE: When reassembling unit, be sure to push shut-

off arm as far as it will go into bushing in back

of support assembly.

3. At side of mold & heater assembly, pull thermal

fuse out of its clip (See "Thermal Fuse," P. 41).

4. Remove wiring harness by depressing retainer tab

as you pull the plug out.

Shut-off

arm

Adjustment

screw

Mold anchor-screw

access ports (2) (Phillips)

Module

anchor screws (3)

1 2 ... 26 27 28 29 30 31 32 33 34 35 36 ... 54 55

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Maytag MTB1504ARW Operations Instructions Page 31

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