Haier Dishwasher Error Code E2 — Water Temperature Out of Range
What this means
Error code E2 on Haier dishwashers indicates the temperature of the water entering the unit is outside the acceptable range. Most Haier dishwashers expect a cold water inlet and heat the water internally. If the inlet water is too hot (above 150°F from a malfunctioning water heater) or the internal temperature sensor detects an anomaly, E2 will trigger. A faulty NTC temperature sensor can also cause this code by sending incorrect temperature data to the control board.
Alternate codes: Err2
Step-by-step fix
3 stepsCheck the water supply temperature
If the dishwasher is connected to the hot water supply, switch it to cold water. If already on cold, run the kitchen faucet and feel the cold water temperature — if it feels warm, your home's plumbing may have a cross-connection issue.
Haier dishwashers with internal heaters are designed to connect to cold water only. Check your installation guide.
Test the temperature sensor (NTC)
Unplug the dishwasher. Locate the NTC temperature sensor (usually mounted in the sump or on the wash pump housing). Disconnect its wires and test with a multimeter. At room temperature, it should read approximately 10,000–15,000 ohms.
An NTC sensor that reads OL (open) or near zero (shorted) is sending false temperature data to the board.
Replace the temperature sensor if faulty
Order the replacement NTC sensor for your model. Remove the old sensor (usually held by a clip or single screw), install the new one, and reconnect the wiring. Run a test cycle.
When replacing, apply a thin layer of thermal compound to the sensor tip for accurate contact with the sump.
When to call a professional
If the temperature sensor tests good and the water supply is correct but E2 persists, the control board or heating element circuit may be at fault. Professional diagnosis is recommended.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
Learn more about our sourcesParts you may need
NTC Temperature Sensor
Part #WD-7250-08 · $10–$25
If sensor reads outside 10K–15K ohm range
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