Whirlpool Refrigerator Error Code E8 — What It Means & How to Fix It

What Does This Error Mean?

The E8 error on a Whirlpool refrigerator points to a fault with the ice maker sensor or thermistor. This sensor monitors the temperature inside the ice maker compartment to control the ice-making cycle. When it fails or reads out of range, the refrigerator stops the ice maker and displays E8. In most cases the ice maker stops producing ice but the rest of the refrigerator continues to work normally.

Affected Models

Whirlpool WRF535SWHZ
Whirlpool WRS325SDHZ
Whirlpool WRX735SDHZ
Whirlpool WRT518SZFM
Whirlpool WRS571CIHZ

Common Causes

The ice maker thermistor has failed and is sending incorrect resistance readings to the control board
The wiring harness connecting the ice maker sensor to the main board has a loose or corroded connector
Ice or frost has built up around the ice maker compartment and is affecting sensor readings
The ice maker module itself has failed, triggering a fault in the sensor circuit
A voltage surge or power fluctuation corrupted the control board and caused a false E8 reading

How to Fix It

Unplug the refrigerator for 5 minutes, then restore power. This resets the control board and can clear a false E8 caused by a temporary voltage issue.

If E8 returns within an hour, the sensor or wiring has a genuine fault and needs inspection.
Check the ice maker compartment for heavy frost or ice buildup. If frost is covering the sensor area, turn the ice maker off and let it defrost for several hours before restarting.

Excess frost blocking the sensor can cause erratic temperature readings and trigger E8.
Locate the ice maker thermistor — it is a small component clipped to the ice maker module or inserted into the ice mold. Inspect the wiring connector for corrosion, bent pins, or looseness.

Gently pressing the connector firmly into its socket can resolve intermittent E8 errors caused by a poor connection.
Use a multimeter to test the thermistor resistance. At 32°F (0°C) the thermistor should read approximately 16,000 ohms. A reading of 0 or infinity indicates a failed sensor that must be replaced.

Consult your model's service manual for the exact resistance chart, as values vary slightly by model.
Replace the ice maker thermistor with the correct OEM part for your model number. Disconnect the old sensor, plug in the new one, and restore power to clear the E8 code.

Search your full model number (found on the label inside the refrigerator) to order the correct thermistor part.
If the thermistor tests good but E8 persists, the ice maker module itself may need replacement. Consider ordering a complete ice maker assembly for your model.

A complete ice maker assembly includes the thermistor, motor, and ejector blades as one unit.

When to Call a Professional

Replacing an ice maker thermistor is a moderate DIY repair. The thermistor part typically costs $10–$30. If the full ice maker module needs replacement, parts run $50–$150. Contact a technician if you are not comfortable disassembling the ice maker compartment or if the error persists after replacing the sensor.

Frequently Asked Questions

Will the E8 error affect my food if I ignore it?

The refrigerator and freezer compartments typically continue cooling normally with an E8 error. Only the ice maker is disabled by this fault. However, leaving errors unresolved for extended periods can sometimes cause secondary issues. Address E8 within a few weeks to avoid the fault spreading to related components.

Can I still use the ice maker with E8 showing?

No — the ice maker is disabled when E8 is active. The control board shuts down the ice maker cycle to prevent incorrect operation with a faulty sensor. You can use ice trays manually in the freezer as a workaround while you source the replacement thermistor.

How do I find the right replacement thermistor for my Whirlpool refrigerator?

Open the refrigerator door and look for the model number label — it is usually on the left inner wall near the top. Enter the full model number on Whirlpool's parts site or a parts retailer like Repair Clinic or PartSelect. Search for 'ice maker thermistor' or 'ice maker sensor' for your model to find the correct part.