Ge Washing Machine Error E66

⚡ Quick Answer: The GE washing machine E66 error indicates a problem with the water temperature sensor or thermistor, which can prevent the machine from detecting the... ✅ DIY Fixable

What Does Error E66 Mean?

The GE washing machine E66 error indicates a problem with the water temperature sensor or thermistor, which can prevent the machine from detecting the correct water temperature. Symptoms include the washer stopping mid-cycle, failure to start, and unusual sounds during operation. Loose wiring connections may also contribute to this issue. Addressing the E66 error typically involves inspecting and potentially replacing the water temperature sensor.

Common Symptoms:

  • Washer stops mid‑cycle and displays E66
  • Machine fails to detect correct water temperature
  • Wash cycle doesn’t proceed due to invalid sensor reading

Possible Causes

  • Water temperature sensor (thermistor) malfunction (medium)
  • Loose wiring connection at sensor or PCB (medium)

How to Fix Error E66

DIY Fix Power reset and basic check

  1. Turn off and unplug the washer from power
  2. Wait 1–2 minutes and plug back in to see if code clears
  3. Ensure washer door/lid is closed properly and try a new cycle

Technician Only Inspect and replace water temperature sensor

  1. Unplug washer and gain access to the sensor harness
  2. Use a multimeter to test thermistor resistance per service specs
  3. Replace sensor if out of tolerance
  4. Check associated wiring harness and connections to main PCB

Parts needed: Water temperature sensor (thermistor), Wiring harness

🛑 When to Call a Pro:
  • If error persists after basic reset and visible wiring inspection
  • If testing the sensor or PCB is beyond user capability or requires specialized tools

Technical Specifications

wattage 500W
component Motor Drive Unit
resistance 5-10 ohms
part_number WH20X10019
voltage_rating 120V AC

Common Questions

What does E66 error mean on GE washing machine?

E66 indicates a malfunction in the water temperature sensor, causing the washer to stop mid-cycle.

Can I fix GE washing machine E66 error myself?

Yes, try a power reset and ensure all connections are secure before considering professional help.

How much does it cost to fix E66 error?

Repair costs typically range from $50 to $150 for parts and labor.

When should I call a technician for E66?

Call a technician if the error persists after a reset or if you cannot test the sensor or PCB.

Data last verified: 2026-01-10

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