GE Dishwasher Error Code NORM

NORM is a thermistor fault code on GE dishwashers. It appears when the thermistor, the component that monitors water temperature inside the tub, has either stopped working or is reporting a reading above 175 degrees Fahrenheit. The dishwasher will typically continue running the cycle, but temperature-based cycle control is compromised. Checking the thermistor and the main control board are the recommended first diagnostic steps.

The dishwasher is designed to complete the current cycle even with the NORM fault active, so it is generally safe to run in the short term. However, since the control board can no longer accurately monitor water temperature, wash and sanitize performance may be reduced. Continued use without diagnosis also risks missing an underlying issue like a heating element that is stuck on, which could cause damage over time.

A reset may temporarily clear the NORM code from the display, but the fault will return if the underlying problem with the thermistor or control board has not been corrected. Resetting is a useful first step to rule out a transient glitch, but a persistent NORM code after resetting indicates a component that requires inspection or replacement.

Some causes of the NORM code are DIY-friendly. Inspecting and reseating the thermistor connector, checking the wiring harness for visible damage, and testing the thermistor resistance with a multimeter are all tasks a confident DIYer can perform. If the thermistor itself has failed, replacing it is a straightforward repair. If the main control board is at fault, the repair is more involved and may be better left to a technician.

Repair costs vary depending on the faulty component. A replacement thermistor is typically an inexpensive part, with the total repair cost including labor ranging from around $75 to $200. If the main control board is the cause, parts alone can range from $100 to $300 or more, with total repair costs potentially reaching $200 to $450 depending on labor rates in your area.