Whirlpool Refrigerator Ice Maker Not Working: Step-by-Step Fix

Common Symptoms

• Ice maker has produced no ice for 24+ hours despite freezer at correct temperature
• Wire shutoff arm (bail wire) is in the raised UP position — ice maker is switched off
• Water filter indicator light is red or filter is overdue — flow restriction stopping fills
• Water dispenser has low or slow flow even after filter replacement
• Ice maker test cycle motor turns but no water fills the mold
• Ice maker mold fills with water but ice never ejects — harvest cycle not initiating
• Door ajar or door switch fault preventing ice maker from running
• Ice cubes clumping in bin and blocking the ejector arm

Most Likely Causes

1. 1

   Ice Maker Arm in UP Position — Ice Maker Switched Off

   Whirlpool ice makers on WRS325SDHZ, WRS571CIHZ, and WRS588FIHZ side-by-side models use a wire bail arm (shutoff arm) that rises automatically when the bin fills to stop production. If the arm is manually raised, bumped up by a jammed ice clump, or held up by an improperly seated bin, the ice maker stops producing ice entirely. Check this first — it takes 5 seconds and costs nothing. Push the arm down to the run position, confirm the bin is fully seated, and wait 24 hours. This is the single most common cause of Whirlpool ice maker calls.

2. 2

   Door Switch Interlock — Refrigerator Door Not Signaling Closed

   Whirlpool refrigerators use a door switch that signals to the control board when the refrigerator and freezer doors are closed. The ice maker is interlocked with the door switch — if the switch fails or reads the door as open, the ice maker will not run its harvest cycle to prevent water from dispensing with the door ajar. A faulty door switch can stop ice production while the rest of the refrigerator operates normally. Test: manually depress the door switch plunger (with the door open) and listen for the interior light to cycle — a working switch should change the light state. If the switch does not respond, it has failed and must be replaced.

3. 3

   Clogged Water Filter — Flow Below Inlet Valve Activation Threshold

   Whirlpool recommends replacing the water filter every 6 months or 200 gallons. An overdue filter builds up sediment that restricts water flow — when flow drops below the fill valve's activation threshold, the ice maker solenoid fails to open during the fill cycle. Symptoms: the test cycle ejector arm runs normally, but the water fill phase produces little or no water. Also check for slow flow at the dispenser — slow dispenser flow with no ice production strongly indicates filter restriction rather than a valve or ice maker failure.

4. 4

   Harvest Cycle Timing — Mold Thermostat W11338583 Failure

   The harvest cycle on Whirlpool ice makers is initiated when the mold thermostat W11338583 confirms the ice in the mold has reached ejection temperature (approximately 15°F). A failed thermostat — one that reads open circuit at room temperature — prevents the harvest heater from activating, so ice freezes in the mold correctly but never ejects. The harvest cycle never runs, the mold stays full of ice, and no new water fills. Testing: disconnect the thermostat leads and check continuity at room temperature — a good thermostat reads continuity (closed); open circuit confirms failure. W11338583 is $15–25 and is a standalone repair.

5. 5

   Water Inlet Valve W10408179 — Ice Maker Solenoid Failure

   The water inlet valve (W10408179 on WRS325SDHZ, WRF535SWHZ, WRS571CIHZ, WRS588FIHZ) has a secondary solenoid dedicated to the ice maker fill tube. A failed ice maker solenoid stops water from entering the ice mold while the dispenser (primary solenoid) may continue to work normally. Test: unplug the refrigerator, access the valve at the rear lower section, disconnect the solenoid connector, and measure resistance — 200–500Ω is normal; OL confirms valve failure.

6. 6

   Ice Maker Module W10884390 — Motor or Control Failure

   The ice maker module W10884390 contains the motor that drives the ejector blades, the mold heater, and the control circuitry that sequences the harvest cycle. When the module fails, the most common mode is the motor failing to run during the test cycle — no ejector arm movement even with the test button pressed. The module is the last component to replace after ruling out the wire arm position, water supply, filter, door switch, and mold thermostat.

Quick DIY Checks

1. 1Check the wire shutoff arm (ice maker on/off): open the freezer and locate the wire bail arm above the ice bin (WRS325SDHZ and WRS571CIHZ side-by-side) or inside the freezer compartment (WRF535SWHZ French door). If the arm is in the UP position, gently push it DOWN to the run position. Confirm the ice bin is fully seated — a partially inserted bin can hold the arm up. After pushing the arm down, wait 24 hours before evaluating ice production. The first batch takes 1.5–2 hours per cycle; allow several cycles to fill the bin before diagnosing further.
2. 2Test the door switch interlock: open the refrigerator door and locate the door switch — typically a small button or plunger in the door frame that the door depresses when closed. Manually press the switch plunger with a finger or pen while observing the interior light. A working door switch toggles the interior light off when the plunger is depressed (simulating a closed door). If the light does not respond, the door switch has failed. A non-functional door switch signals the control board that the door is open, which prevents the ice maker from running its harvest cycle. Replace the door switch before further ice maker diagnosis.
3. 3Replace the water filter if overdue: check the filter status indicator on the control panel. Even without a warning light, replace the filter if it has been more than 6 months or 200 gallons. Common Whirlpool filter part numbers: W10295370A (EveryDrop 1), W10413645A (EveryDrop 2) — verify by your model number or existing filter label. After installing the new filter, flush 4 gallons through the water dispenser to prime the system and remove air before expecting ice production to resume.

1. 4Verify water supply to the refrigerator: pull the refrigerator from the wall and confirm the water shut-off valve is fully open (handle parallel to the pipe). Check the water supply line for kinks at the back where the line bends. Run the water dispenser for 10 seconds: the flow should be strong and steady. Weak dispenser flow after a new filter installation indicates a partially closed shut-off valve or a kinked supply line — correct the supply issue before testing the ice maker fill valve.
2. 5Run the Whirlpool ice maker harvest cycle test: locate the Test button on the ice maker module (usually on the front or underside of the ice maker body — may require removing the ice bin to access). Press and hold the button for 3–5 seconds until the motor engages and the ejector arm begins to rotate. Observe: (1) does the ejector arm complete a full rotation without stalling or grinding? (2) does water fill the mold approximately 2–3 minutes after the arm returns to home position? The gurgling water fill sound confirms the inlet valve opened. If no water fills, the inlet valve solenoid or water supply is the issue. If the arm stalls or grinds, check for a stuck ejector arm with clumped ice.
3. 6Test the mold thermostat W11338583 for harvest cycle timing: if the test cycle completes correctly (arm rotates, water fills) but no ice ejects after 2–3 hours, the mold thermostat may have failed open. Unplug the refrigerator, locate the thermostat clipped to the ice mold heater assembly on the underside of the mold, disconnect the two leads, and set the multimeter to continuity mode. At room temperature, a good thermostat reads continuity. An open circuit confirms failure — the harvest heater cannot activate, so ice stays bonded in the mold surface. W11338583 is approximately $15–25.
4. 7Test the water inlet valve W10408179 and replace the ice maker module W10884390 if needed: to test the valve, unplug the refrigerator, remove the rear lower kick grille to access the valve, disconnect the secondary solenoid connector, and measure resistance — 200–500Ω is good; OL confirms solenoid failure. W10408179 is approximately $25–45. If the valve tests good, all supply and filter issues are confirmed resolved, and the mold thermostat tests good, but the ice maker still does not cycle, replace the module W10884390. To install: unplug the refrigerator, disconnect the ice bin and wire harness from the module, remove 2–3 mounting screws, swap the new module, and run a test cycle immediately to confirm operation.

Repair vs Replace

Recommended Tools & Parts

• Whirlpool Water Inlet Valve W10408179

  OEM dual-solenoid water inlet valve for Whirlpool refrigerators including WRS325SDHZ, WRF535SWHZ, WRS571CIHZ, WRS588FIHZ. Test each solenoid for 200–500Ω before replacing. Located at rear lower section behind kick grille.

  $25–$45

  Buy on Amazon →

• Whirlpool Ice Maker Module W10884390

  OEM replacement ice maker module for Whirlpool refrigerators. Complete unit with motor, mold heater, thermostat, and control logic. Replace when motor does not run during test cycle, or mold fills but ice never ejects after thermostat tests good.

  $40–$70

  Buy on Amazon →

• Whirlpool Ice Mold Thermostat W11338583

  OEM bimetal thermostat for Whirlpool ice maker mold heater. Tests as closed (continuity) at room temperature. Replace when thermostat reads open circuit at room temp — harvest cycle completes but ice sticks in mold because heater cannot activate.

  $15–$25

  Buy on Amazon →

• Whirlpool Water Filter EveryDrop (model-specific)

  Replacement water filter for Whirlpool refrigerators. Replace every 6 months or 200 gallons. Common numbers: W10295370A (EveryDrop 1), W10413645A (EveryDrop 2) — verify by model number. A clogged filter stops ice production by restricting flow below inlet valve threshold.

  $15–$40

  Buy on Amazon →

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

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