Ice Maker Service Manuals & Error Codes

Service manuals, error codes, and parts diagrams for ice maker repair across all major brands.

909Manuals

163Error Codes

19Brands

MyPros+ Max

Get step-by-step ice maker diagnostics from the service manual.

Step-by-step tests with expected resistance, voltage, and continuity values
Wiring diagram references and connector pinouts from the service manual
Verified part numbers when replacement is required

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M+

M+ Max·Whirlpool Ice Maker

My appliance shows an error code

M+

Control board fault diagnosis

From Tech Sheet W10810403, p.8:

1.Access the service diagnostic mode using the tech sheet procedure. Record all stored fault codes from the error history, not just the most recent active code.

2.Measure control board supply voltage at the test points. Expected: 12 VDC and 5 VDC. A drop below 4.75 VDC on the logic rail points to a failed onboard regulator.

3.Inspect all connectors on the main control board for corrosion, thermal stress, or backed-out pins. Reseat each connector with the power disconnected.

Part WPW10804018

Electronic control board

Top Error Codes for Ice Maker Repair

CodeBrandDescription

2 pulsesWhirlpoolOptics are blocked or defective; infrared beam path between emitter...3 pulsesWhirlpoolOptics and relay are okay, but the ice maker is not being sensed or...4 pulsesWhirlpoolThe optics relay is defective.No lightWhirlpoolPossible self-check in progress, incorrect wiring, defective LED, or...On/Off LED and Max Ice LED blinkingWhirlpoolHarvest failure — evaporator thermistor may be disconnected, open,...On/Off LED blinkingWhirlpoolBin thermistor failure — the bin thermistor is open or shorted, or...Steady light (5 seconds)WhirlpoolOptics and relay are okay; the receiver senses the ice maker. Ice...2 BlinksGEBin thermistor failure — the bin thermistor is open or shorted, or...3 BlinksGEHarvest failure — the evaporator thermistor has not reached 52°F...ADD CLEANER illuminatedGEA clean cycle has been initiated but no cleaning solution is detected...Clean LED AmberGECleaning recommended — triggered after 50 hung slabs or 3500 freeze...Clean LED RedGECleaning required — triggered after 70 hung slabs or 4000 freeze...CLEANING NEEDED illuminatedGEElectronic control senses that cleaning cycle is needed (after...Ice icon and REPLACE FILTER onGEShort freeze cycle has occurred (freeze cycle took less than 15...LED flashes 2 timesGEBin thermistor not detected during Clean/Diagnostics cycle.

Show all 19 brands

Edgestar Electrolux Franklin Frigidaire GE Jenn-Air Kenmore KitchenAid Lancer LG Marvel Maytag Prodigy Samsung Sub-Zero Thor Kitchen U-Line Viking Whirlpool

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Access 909 service manuals, 163 error codes, and step-by-step diagnostics for ice maker repair.