mypros+
Error code reference

GE Dishwasher Error Code E0

Thermal sensor cut (open circuit in tub thermistor).

GE codesGE dishwasher codes

Thermal sensor cut (open circuit in tub thermistor).

First step from the service manual

Check tub thermistor resistance and wiring for open circuit. Expected resistance approximately 56.5K ohms at 72°F (50K ohms at room temperature).

The complete diagnostic procedure includes additional test steps, resistance specifications, wiring diagram references, and component test points.

MyPros+ Max

Get the full diagnostic procedure for E0.

  • Step-by-step tests with expected resistance, voltage, and continuity values
  • Wiring diagram references and connector pinouts from the OEM service manual
  • Verified part numbers when replacement is required
Get the full procedure

$29/month · Cancel anytime · Or $9.95 3-day pass

What E0 means on a GE dishwasher

The E0 error code on a GE dishwasher indicates an open circuit condition in the tub thermistor, which is the temperature sensor responsible for monitoring the water temperature inside the wash tub. The control board continuously reads resistance values from this thermistor to regulate heating cycles, sanitize rinses, and drying performance. When the circuit is broken, the board cannot receive any temperature signal and triggers the E0 fault to prevent the dishwasher from operating with uncontrolled or unknown water temperatures.

The tub thermistor is a negative temperature coefficient (NTC) type sensor, meaning its resistance decreases as temperature rises. At approximately 72°F, the expected resistance is around 56.5K ohms, with a general room temperature baseline near 50K ohms. An open circuit reading on a multimeter, meaning infinite or out-of-range resistance, confirms the thermistor itself has failed internally. This is distinct from a short circuit fault, which would read near zero ohms instead.

The most common causes of this fault are a failed thermistor, damaged wiring in the thermistor harness, or a loose or corroded connector at either the thermistor or the control board. Physical damage from water intrusion, heat stress over time, or a simple wire break in the harness can all interrupt the circuit. Because the control board relies on this sensor for core wash cycle decisions, the dishwasher will typically halt operation and display E0 until the open circuit is resolved and the fault is cleared.

Source: manufacturer service documentation.

Common causes of E0

  1. 01

    Failed tub thermistor

    Part replacement

    The thermistor itself has developed an internal open circuit and reads infinite resistance on a multimeter instead of the expected 56.5K ohms at 72°F. This is the most frequent cause and requires replacing the thermistor.

  2. 02

    Broken or damaged wiring harness

    Part replacement

    A wire in the thermistor circuit has broken, been pinched, or worn through, interrupting continuity between the sensor and the control board. Inspect the full length of the harness for visible damage or breaks.

  3. 03

    Loose or corroded connector

    Wiring / connection

    The connector at the thermistor or at the control board may have worked loose or developed corrosion, causing an intermittent or permanent open circuit. Disconnect and reseat both ends of the connector and inspect the terminals for corrosion.

  4. 04

    Water-damaged connector or terminal

    Part replacement

    Prolonged moisture exposure inside the door panel or under the tub can corrode connector terminals to the point of failure. Look for green or white oxidation on the metal contacts and clean or replace the connector as needed.

See the test procedure for each cause

Frequently asked questions about E0

What does E0 mean on a GE dishwasher?
E0 means the control board has detected an open circuit in the tub thermistor, which is the temperature sensor that monitors water temperature during the wash cycle. The expected resistance of a functioning thermistor is approximately 56.5K ohms at 72°F. When the circuit is broken, the board cannot read any temperature data and shuts down the dishwasher. The fault points to either a failed sensor, a broken wire, or a bad connector in the thermistor circuit.
Can I fix the E0 error code on my GE dishwasher myself?
A knowledgeable DIYer comfortable with a multimeter can diagnose this fault by checking thermistor resistance and inspecting the wiring harness and connectors. If the thermistor reads infinite resistance instead of approximately 56.5K ohms at room temperature, the sensor needs to be replaced. Reseating a loose connector requires no special tools and is a reasonable first step. If the wiring harness is damaged or the control board is involved, professional repair may be warranted.
Is it safe to use my GE dishwasher when it shows E0?
You should not attempt to bypass or ignore the E0 code and run the dishwasher. Without a functioning temperature sensor, the control board cannot properly regulate water heating, which could result in water that is not hot enough to clean and sanitize effectively or, in a fault scenario, overheating. The dishwasher is designed to stop operation when this error is detected for this reason.
How much does it cost to repair a GE dishwasher E0 error?
If the repair only involves reseating a connector, there may be no parts cost at all. A replacement tub thermistor typically costs in the range of $15 to $50 for the part. If a professional technician is needed, total repair costs including labor generally fall in the range of $100 to $250 depending on location and service rates. A damaged wiring harness or control board would increase the cost significantly.
Will resetting my GE dishwasher clear the E0 error code?
Resetting the dishwasher may temporarily clear the displayed code, but the E0 fault will return as soon as the control board attempts to read the thermistor again and finds the open circuit still present. A reset does not repair a broken sensor, damaged wire, or corroded connector. The underlying cause must be diagnosed and corrected before the error will stay cleared.

Related GE dishwasher codes

All GE dishwasher codes
View all 222 GE dishwasher codes

78,000+ service manuals · 160,000+ error codes · 55+ brands

Get Started

$29/month · Cancel anytime · Or $9.95 3-day pass