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

Common Symptoms

• Standard ice maker not producing crescent ice on KRMF706ESS or KRFC704FPS
• Craft Ice maker not producing spherical ice balls on KBFN502ESS or KRFC704FPS
• Error code E5 on KitchenAid display — thermistor fault
• Error code W on display — water supply not reaching ice maker
• Error code H on display — harvest cycle not completing
• Both standard and Craft Ice makers stopped simultaneously
• Ice maker test cycle runs but no water fills mold
• Craft ice ball tray frozen in place — balls form but won't eject

Most Likely Causes

1. 1

   Craft Ice Maker Frozen Ball Tray W11330285

   The KitchenAid Craft Ice maker uses a rotating spherical mold (W11330285) that fills with water, freezes it into a sphere, then rotates 180° to eject the ball into the storage bin. This mechanism is more complex than a standard crescent ice mold and is susceptible to the tray freezing in place — typically when the harvest motor is weak, the tray seal allows moisture to accumulate around the hinge, or the freezer temperature drops below -5°F causing over-freezing. Symptom: you can hear the Craft Ice maker motor attempting to rotate but producing a straining or clicking noise. The spherical mold is visible behind the lower freezer compartment access panel — if it has not rotated in 24+ hours, a frozen tray is the likely cause. Do NOT force the rotation manually — the motor or housing can crack.

2. 2

   Standard Ice Maker W11388462 Failure

   The standard crescent ice maker W11388462 in the KitchenAid upper freezer compartment follows the Whirlpool-platform module design and fails in the same ways: harvest motor failure (H error code), mold heater fault, or thermistor failure (E5 error code). This assembly is completely separate from the Craft Ice maker and can fail independently. The standard ice maker on KitchenAid models is located in the upper right of the freezer compartment and is accessed by removing the ice bin. If neither the standard nor Craft ice maker is working simultaneously, the common cause is water supply — both units share the same inlet valve W11175771.

3. 3

   Water Inlet Valve W11175771 Failure

   The KitchenAid water inlet valve W11175771 is a triple-solenoid unit on Craft Ice models (KBFN502ESS, KRFC704FPS) — one solenoid for the standard ice maker, one for the Craft Ice maker, and one for the water dispenser. Triple-solenoid valves are less common and more expensive than dual-solenoid valves. If both ice makers stop simultaneously while the dispenser continues to work, either the two ice maker solenoids have failed together (uncommon) or the water supply pressure has dropped below the 20 PSI minimum. Test each solenoid independently with a multimeter — 200–500Ω indicates a good coil; OL confirms failure. W11175771 is approximately $45–70 and requires identifying your specific model to confirm triple vs. dual solenoid configuration.

4. 4

   Thermistor Fault E5 — WPW10316760

   The KitchenAid freezer thermistor WPW10316760 monitors the freezer compartment temperature and feeds data to the main control board. The E5 error code indicates this thermistor has failed or is reading out of expected range. Unlike the ice maker thermistor (which monitors the mold temperature specifically), the freezer thermistor failure affects overall temperature control and ice maker operation simultaneously. A failed thermistor can cause the freezer to run too warm (ice maker halts) or enter a continuous defrost state (frost clears, temperature rises). Test: unplug the refrigerator, locate the thermistor behind the freezer back panel, and measure resistance — at 0°F, a good WPW10316760 reads approximately 16,600Ω; a very large or OL reading confirms failure.

5. 5

   Ice Level Sensor W10882923 Blocking Ice Production

   The KitchenAid ice level sensor W10882923 (also called the optical sensor or ice bin full sensor) uses an infrared beam across the ice bin to detect when the bin is full. When the beam is interrupted by ice, the ice maker pauses production until ice is dispensed and the bin level drops. A failed sensor that constantly reads 'full' stops ice production even when the bin is empty. On models with a sensor failure, the ice maker will not run even after the bin is emptied and the ice maker has been reset. Test: remove the ice bin and manually block and unblock the sensor beam path — you should hear a click or relay activation. Also wipe the sensor lens with a dry cloth — frost or ice deposits on the optical sensor window are the most common cause of false 'full bin' signals.

6. 6

   Low Water Pressure — W Code

   The W (water) error code on KitchenAid models indicates the ice maker is not receiving adequate water flow to complete a fill cycle. KitchenAid ice makers require 20–120 PSI water pressure — low pressure produces the W code even with a fully functional valve and ice maker assembly. Check household water pressure at the refrigerator supply line (a pressure gauge screws onto the supply valve fitting). Also inspect the water supply line for kinks and confirm the shut-off valve is fully open. The Craft Ice maker on KBFN502ESS and KRFC704FPS is especially sensitive to low pressure because the spherical mold fill requires a precise water volume — even slightly low pressure produces undersized or incomplete ice spheres before triggering the W code.

Quick DIY Checks

1. 1Identify which ice maker is not working — standard, Craft Ice, or both: on KitchenAid models with Craft Ice (KBFN502ESS, KRFC704FPS), open the upper freezer to check the standard crescent ice bin and open the lower freezer access panel to check the Craft Ice ball bin. If only the Craft Ice maker is not producing spheres, the issue is isolated to the W11330285 ball tray mechanism or the Craft Ice solenoid on the inlet valve. If only the standard ice maker is not working, diagnose the W11388462 module. If both have stopped simultaneously, suspect a shared cause: water supply, inlet valve W11175771, or the E5 thermistor fault affecting overall freezer temperature.
2. 2Enter KitchenAid diagnostic mode and read error codes: with the refrigerator powered on, press the Freezer Temp Up button three times, then the Freezer Temp Down button three times in quick succession. The display will enter diagnostic mode and show any stored error codes. Read the codes: E5 = freezer thermistor WPW10316760 fault; W = water supply insufficient; H = harvest cycle not completing (standard ice maker W11388462 or Craft Ice W11330285 motor issue). Write down all displayed codes. To exit diagnostic mode, press any standard temperature button or allow the display to time out.
3. 3Test water pressure at the supply line: a water pressure gauge (available at hardware stores for $10–15) can be screwed onto the refrigerator supply line fitting after closing the shut-off valve. Reopen the valve with the gauge in place and read the pressure — 20–120 PSI is the KitchenAid specification (60–80 PSI is normal household pressure). If pressure is below 20 PSI, the shut-off valve is partially closed, the supply line has a restriction, or household pressure is abnormally low. Also check the water filter: a clogged filter is the most common cause of pressure drop at the refrigerator supply.

1. 4Inspect the inlet valve W11175771 with a multimeter: unplug the refrigerator. Access the valve at the lower rear behind the kick grille. Disconnect each solenoid connector and test resistance across each pair of terminals. Standard KitchenAid solenoids read 200–500Ω — OL (open circuit) on any solenoid confirms that coil has failed. On Craft Ice models, there are three solenoids: ice maker, Craft Ice, and dispenser. Test all three. Note: even if only one solenoid is failed, the entire valve assembly must be replaced — individual solenoids are not sold separately for W11175771.
2. 5Check and clean the ice level sensor W10882923: remove the ice storage bin from the freezer. Locate the optical sensor — it consists of two small modules (emitter and receiver) mounted on opposite walls of the ice bin cavity, approximately halfway up the bin opening. Use a dry cloth or cotton swab to clean both sensor windows. If there is frost or ice deposits on the sensor faces, use a hair dryer on LOW to melt them. Reinstall the empty bin and check whether the ice maker now attempts to produce ice within 30 minutes. If ice production resumes with an empty bin but stops again quickly, the sensor is faulty and W10882923 requires replacement.
3. 6Replace the Craft Ice ball tray W11330285 if the Craft Ice maker motor strains but cannot rotate: unplug the refrigerator and open the lower freezer access panel. The Craft Ice maker assembly is mounted at the rear. Disconnect the water supply line and the wire harness connector. Remove the 3–4 mounting screws. Slide the assembly forward and out. Install the new W11330285 in reverse order. Note: if replacing only the ball tray (not the full assembly), the tray snaps into the motor housing — follow the model-specific installation guide. After installation, allow the freezer to stabilize for 4 hours before expecting the first ice ball (the Craft Ice cycle takes 90–120 minutes per ball at normal temperature).

Repair vs Replace

Recommended Tools & Parts

• KitchenAid Water Inlet Valve W11175771

  OEM water inlet valve for KitchenAid French door refrigerators with Craft Ice. Triple-solenoid design on Craft Ice models — serves standard ice maker, Craft Ice maker, and water dispenser. Test each solenoid at 200–500Ω before ordering. Compatible with KRMF706ESS, KRFC704FPS, KBFN502ESS.

  $45–$70

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• KitchenAid Craft Ice Ball Tray W11330285

  OEM Craft Ice maker spherical mold assembly for KitchenAid refrigerators. Produces slow-melting spherical ice balls. Replace when the tray is frozen in place, harvest motor strains, or balls fail to eject. Includes updated seal design. Compatible with KRFC704FPS and KBFN502ESS Craft Ice models.

  $55–$85

  Buy on Amazon →

• KitchenAid Standard Ice Maker W11388462

  OEM standard crescent ice maker module for KitchenAid French door refrigerators. Resolves E5, W, and H error codes when the module has failed internally. Complete replacement unit. Compatible with KRMF706ESS, KRFC704FPS, and other KitchenAid models — verify by full model number.

  $90–$130

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• Digital Multimeter

  Essential for testing inlet valve solenoids (200–500Ω), freezer thermistor WPW10316760 resistance (16,600Ω at 0°F), and component continuity. Required for accurate KitchenAid ice maker diagnosis.

  $15–$40

  Buy on Amazon →

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

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