Maytag Ice Maker Not Working — Error Codes, Diagnostics & Fixes

Common Symptoms

• Maytag ice maker has not produced ice in 24+ hours
• Diagnostic blink code: 1 blink pause 3 blinks — thermistor fault
• Diagnostic blink code: 2 blinks pause 3 blinks — harvest motor fault
• Diagnostic blink code: 4 blinks — mold heater fault
• Ice maker runs motor but no water fills the mold
• Ice maker tray visible through door — full of water that never froze or ejected
• Forced harvest test produces no ice within 2 hours
• Freezer temperature normal but ice production stopped completely

Most Likely Causes

1. 1

   Ice Maker Switched Off or Wire Arm Raised

   Maytag ice makers have a wire shut-off arm (on side-by-side models) or an on/off paddle switch (on French door models like MFI2570FEZ). The wire arm rises automatically when the ice bin is full and lowers when ice is dispensed. If the arm was knocked up during cleaning or bin removal, ice production stops. On the MFI2570FEZ French door model, the ice maker on/off switch is located on the ice maker unit inside the upper freezer compartment. Also check the control panel: Maytag dispenser controls have a dedicated Ice Maker On/Off button — pressing it accidentally during a cleaning cycle is a frequent cause of calls. Confirm the ice maker is enabled before any further diagnosis.

2. 2

   Frozen Water Supply Line

   The water supply line that runs from the wall shut-off valve to the refrigerator, and the internal fill tube from the inlet valve to the ice mold, are both susceptible to freezing. A frozen external supply line is common when the refrigerator was recently moved or when the line runs through a cold area. A frozen internal fill tube — more common in French door models — occurs when the fill tube is exposed to sub-zero air flow at the freezer back wall. Symptom: the ice maker motor runs during forced harvest test but no water enters the mold. Diagnosis: run the water dispenser — if dispenser flow is also reduced or absent, the external line is frozen; if the dispenser works normally, the ice maker fill tube is frozen. Thaw with a hair dryer on LOW heat.

3. 3

   Faulty Water Inlet Valve WPW10498976

   The Maytag water inlet valve WPW10498976 is a dual-solenoid unit — one solenoid controls ice maker fill, the other controls dispenser water. Solenoid failure on the ice-maker circuit prevents the mold from filling while the dispenser continues to work normally. Test: unplug the refrigerator, access the valve at the rear lower section, disconnect the connectors, and measure each solenoid with a multimeter. Good solenoids read 200–500Ω; OL (open circuit) confirms failure. Also check household water pressure — Maytag/Whirlpool platform ice makers require 20–120 PSI inlet pressure (60–80 PSI is typical). Low pressure from a partially closed shut-off valve or a clogged water filter will produce an identical no-fill symptom even with a good valve.

4. 4

   Ice Maker Module WPW10757851 Failure

   The Maytag ice maker module WPW10757851 is the brain and motor assembly of the ice maker unit. It controls the harvest cycle timing, drives the ejector blades, and monitors the thermostat signal. A 2 blink + 3 blink fault code from the diagnostic test specifically identifies harvest motor failure within this module. The mold heater (4-blink code) is also internal to the assembly. When the module fails, the ice maker typically stops completely — no test cycle activity, or a cycle that runs without producing ice. WPW10757851 is a complete module replacement that resolves motor, timer, and heater faults in one part. It is compatible with Maytag MFI-series and MFX-series models as well as Whirlpool WRF-series.

5. 5

   Thermistor Fault W11088620 — 1+3 Blink Code

   The ice maker thermistor W11088620 measures the temperature of the ice mold to determine when ice has fully formed and is ready for harvest. A failed thermistor causes the control module to either never initiate a harvest cycle (thermistor reads too warm — mold appears 'not ready') or to harvest constantly without a proper freeze cycle (thermistor reads too cold). The 1 blink pause 3 blinks diagnostic code specifically indicates thermistor fault. Test: unplug the refrigerator, disconnect the thermistor connector from the ice maker module, and measure resistance across the thermistor terminals at room temperature — a good Maytag/Whirlpool thermistor reads approximately 16,000–20,000Ω at 32°F (0°C) or approximately 50,000Ω at room temperature; OL (open circuit) confirms failure.

6. 6

   Door Seal Air Leak

   A compromised freezer door gasket on Maytag refrigerators allows warm, humid air to infiltrate the freezer compartment. This causes frost accumulation on the evaporator coils, reduced cold-air circulation, and temperatures that fluctuate above the 0–5°F optimum for ice production. Additionally, moisture entering the ice maker compartment can freeze on components and in the fill tube. Check the door gasket by closing the door on a piece of paper: you should feel resistance when pulling the paper out at any point around the gasket. A loose gasket (paper slides out easily) at the ice maker compartment area can cause progressive ice production degradation even when all components test good.

Quick DIY Checks

1. 1Confirm the ice maker is enabled: on Maytag French door models (MFI2570FEZ, MFX2676FRZ), open the freezer compartment and locate the ice maker unit — there is an on/off switch or paddle on the unit body; confirm it is in the ON position. On side-by-side models, confirm the wire shutoff arm is in the down (run) position. Also press the Ice Maker button on the dispenser control panel — if the ice maker indicator light is off, the ice maker is disabled from the control panel. Press once to enable it.
2. 2Run the diagnostic test mode and read the blink code: press and hold the Ice button and Lock button simultaneously for 3 seconds. The ice maker will run a forced harvest cycle and blink a fault code on the LED indicator or display. Count the pattern: 1 blink pause 3 blinks = thermistor W11088620 fault; 2 blinks pause 3 blinks = harvest motor fault (module WPW10757851); 4 blinks = mold heater fault (module WPW10757851). If no blink code appears and the test cycle runs without producing ice in 2 hours, proceed to water supply and temperature checks.
3. 3Verify water supply and pressure: locate the wall shut-off valve and confirm it is fully open. Check the supply line for kinks. Run the water dispenser for 10–15 seconds — strong, steady flow indicates adequate supply pressure. Replace the water filter if it has not been changed in 6+ months (Maytag UKF8001 or compatible). Also check if the water line was recently disturbed during a cleaning or service call — a partially closed valve is among the most common causes of Maytag ice maker failure calls.

1. 4Inspect and thaw the fill tube if needed: with the freezer door open, use a flashlight to locate the fill tube at the back wall of the ice maker compartment where it enters the mold. If a white ice plug is visible, the tube is frozen. Use a hair dryer on LOW heat for 5–10 minutes to thaw. Place towels to catch drip water. After thawing, run the diagnostic test cycle to confirm water now fills the mold. If the fill tube refreezes within a few days, suspect a dripping water inlet valve — even a slow drip will refreeze overnight in the sub-zero freezer environment.
2. 5Test the water inlet valve solenoid WPW10498976: unplug the refrigerator. Remove the lower rear kick grille to access the inlet valve. Disconnect the two electrical connectors (ice maker solenoid and dispenser solenoid). Set your multimeter to Ω (resistance) mode. Measure across each solenoid terminal pair — 200–500Ω indicates a healthy solenoid; OL (open circuit) confirms the solenoid has failed and the valve needs replacement. WPW10498976 is approximately $45–70 and is a direct OEM replacement. Reconnect the water supply line securely after installation.
3. 6Replace the ice maker module WPW10757851 if the 2+3 or 4-blink codes are present: unplug the refrigerator. Remove the ice bin. Disconnect the wire harness connector at the back of the ice maker unit. Remove the 2–3 mounting screws. Pull the module free. Install the new WPW10757851 by reconnecting the harness and securing the mounting screws. Reinstall the ice bin. Plug in the refrigerator and allow 24 hours for the first full ice batch after the freezer re-stabilizes at 0–5°F.

Repair vs Replace

Recommended Tools & Parts

• Maytag Water Inlet Valve WPW10498976

  OEM dual-solenoid water inlet valve for Maytag MFI-series and MFX-series French door refrigerators. Whirlpool-platform part used across Maytag, Whirlpool, and KitchenAid refrigerators. Test solenoids for 200–500Ω before ordering. Located at lower rear of refrigerator.

  $45–$70

  Buy on Amazon →

• Maytag Ice Maker Module WPW10757851

  OEM ice maker module assembly for Maytag MFI-series and MFX-series refrigerators. Resolves 2+3 blink (harvest motor) and 4-blink (mold heater) fault codes. Complete module replacement — includes motor, heater, and timing circuitry. Cross-compatible with Whirlpool WRF-series models.

  $75–$110

  Buy on Amazon →

• Maytag Ice Maker Thermistor W11088620

  OEM ice maker thermistor for Maytag refrigerators. Resolves 1+3 blink fault code (thermistor fault). Measures ice mold temperature to control harvest cycle timing. Test for approximately 50,000Ω at room temperature — OL (open circuit) confirms failure.

  $20–$35

  Buy on Amazon →

• Digital Multimeter

  Required for testing inlet valve solenoids (200–500Ω), thermistor resistance (~50kΩ at room temp), and verifying electrical continuity. Use resistance mode for all Maytag ice maker component testing.

  $15–$40

  Buy on Amazon →

Links are Amazon affiliate links (tag: fixitfastai-20). Prices are estimates.

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