KitchenAid Refrigerator Not Making Ice

Common Symptoms

• Ice maker not producing any ice cubes
• Ice production has slowed significantly (not enough ice)
• Ice has an off taste or smell
• Ice maker making noise but no ice dropping into bin
• Ice clumped together in the bin
• Water dispenser works but ice maker does not

Most Likely Causes

1. 1

   Ice Maker Arm in OFF Position (Most Common — Free Fix)

   The ice maker has a wire shut-off arm (or optical sensor on newer models) that stops ice production when the bin is full. If someone raised the arm accidentally, or it got stuck in the UP position, the ice maker will not cycle. On KRFC704 and KRFF507 French door models, check the arm inside the freezer compartment. On KRSF505 side-by-side models, the arm is at the front of the ice maker. Push the arm down firmly to the ON position — it should click or rest in the lowered position.

2. 2

   Frozen Fill Tube Blocking Water Flow

   The fill tube is a small plastic tube that delivers water from the inlet valve into the ice maker tray. On KitchenAid refrigerators, this tube is prone to freezing — particularly if the freezer temperature drops below 0°F or if the fill tube heater (WPW10229647) has failed. A frozen fill tube means water never reaches the ice maker even though the valve opens. You can thaw it temporarily with a hairdryer, but if it refreezes, the heater assembly needs replacement.

3. 3

   Clogged or Expired Water Filter

   KitchenAid recommends replacing the water filter every 6 months. A clogged filter restricts water flow to the ice maker and dispenser. KitchenAid uses WF-NL240 (Push-in style, EveryDrop #4) or WF-NL300 (twist-in, EveryDrop #3/EveryDrop #1 depending on model). A filter indicator light on the dispenser panel turns red when replacement is overdue. Replace the filter and run 2–3 ice maker cycles to flush. Note: running without a filter (bypass plug installed) can eliminate the filter as a suspect.

4. 4

   Failed Water Inlet Valve (WPW10498990)

   The water inlet valve (WPW10498990) is a dual solenoid valve — one solenoid feeds the ice maker, the other feeds the water dispenser. When the ice maker solenoid fails, you get no water to the ice maker while the dispenser may still work (or vice versa). Solenoid resistance should measure 200–500 Ω with a multimeter. Outside that range, or if resistance reads OL (open circuit), replace the valve. This valve also fails by leaking internally — drips around the valve body require replacement.

5. 5

   Defective Ice Maker Module (WPW10757851)

   The ice maker module controls the harvest cycle — it signals the water valve to fill, monitors the ice tray temperature, and activates the ejector blades. When the module fails, the ice maker appears to do nothing even though the freezer is cold and water is reaching the valve. You can run a forced test cycle by pressing and holding the test button on the ice maker module for 3 seconds — the ice maker should begin a harvest cycle within 30 seconds. If it doesn't respond to the test button, the module is likely defective.

6. 6

   Incorrect Freezer Temperature

   The ice maker requires a freezer temperature of 0°F (-18°C) or below to produce ice reliably. If the freezer is set above 10°F or the actual temperature is warmer than the setpoint (due to a failing evaporator fan, dirty coils, or defrost system issue), the ice maker will cycle very slowly or stop entirely. Check the actual freezer temperature with a thermometer rather than relying on the digital display.

7. 7

   Ice Level Control Board (Optical Sensor Models)

   KRFC704FPS and KRMF706ESS models use an infrared optical sensor (ice level control board) to detect when the ice bin is full, rather than a mechanical arm. If the sensor lenses get dirty or frosted over, the ice maker thinks the bin is full and stops producing. Clean the sensor lenses in the freezer door/ice compartment with a dry cloth. If cleaning doesn't restore production, the ice level control board may need replacement.

Quick DIY Checks

1. 1STEP 1 — CHECK ICE MAKER ARM/SENSOR: Open the freezer and locate the ice maker. Check that the wire shut-off arm is in the DOWN (on) position. On optical sensor models (KRFC704, KRMF706), clean the sensor lenses with a dry cloth. This is a free fix and takes 30 seconds.
2. 2STEP 2 — VERIFY FREEZER TEMPERATURE: Place an appliance thermometer in the freezer for 2 hours. Target temperature is 0°F (-18°C). If the freezer is above 10°F, the ice maker will produce little or no ice. Adjust the temperature setting and allow 24 hours for the freezer to stabilize.
3. 3STEP 3 — REPLACE WATER FILTER: Locate the filter — on French door models it's in the upper right of the refrigerator interior; on side-by-side models it's in the top left. Replace with WF-NL240 (EveryDrop #4) or WF-NL300 (EveryDrop #3) as appropriate for your model. After replacement, dispense 3 gallons of water to flush the system. Install the bypass plug to test without a filter if you need to eliminate the filter as a variable.

Repair vs Replace

Recommended Tools & Parts

• KitchenAid Water Inlet Valve — WPW10498990

  OEM dual solenoid water inlet valve for KitchenAid refrigerators. Controls water flow to both the ice maker and water dispenser. Replace when solenoid resistance is outside 200–500 Ω range, or when the valve leaks internally.

  $45–$65

  Buy on Amazon →

• KitchenAid Ice Maker Module Assembly — WPW10757851

  OEM ice maker module/controller assembly. Controls harvest cycles, water fill, and ejector blades. Replace when ice maker doesn't respond to the 3-second forced test cycle or shows no activity despite correct temperature and water flow.

  $60–$110

  Buy on Amazon →

• KitchenAid Fill Tube Heater — WPW10229647

  OEM fill tube heater assembly. Prevents the water fill tube from freezing between ice maker cycles. Replace when the fill tube repeatedly freezes within 24–48 hours of manual thawing.

  $15–$30

  Buy on Amazon →

• KitchenAid EveryDrop Water Filter #4 — WF-NL240

  OEM replacement water filter for KitchenAid French door and bottom-freezer refrigerators. Push-in style filter. Replace every 6 months to maintain ice maker performance and water taste.

  $40–$55

  Buy on Amazon →

• KitchenAid EveryDrop Water Filter #3 — WF-NL300

  OEM replacement water filter for KitchenAid side-by-side models (KRSF505ESS). Twist-in style. Replace every 6 months for best performance.

  $40–$55

  Buy on Amazon →

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

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