E02 Temperature sensor error
moderateThe Bosch E02 error code on your dishwasher indicates: Temperature sensor error. This typically requires troubleshooting the temperature sensor system.
What Causes Error E02
Faulty temperature sensor/thermistor
The sensor has drifted out of range or failed completely, sending incorrect readings to the control board.
Damaged wiring to sensor
The wire harness connecting the sensor to the main board is pinched, corroded, or disconnected.
Control board malfunction
The main PCB is not correctly reading the sensor signal, even though the sensor itself is fine.
How to Fix Error E02
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Step 1: Power cycle the appliance
Unplug it from the wall for 5 minutes, then plug it back in. This resets the control board and clears transient errors.
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Step 2: Locate the sensor
Check your owner's manual for the sensor location. It's usually a small probe with two wires attached to the evaporator area or compartment wall.
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Step 3: Inspect wiring
Look for pinched, burned, or disconnected wires between the sensor and the control board. Reseat any loose connectors.
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Step 4: Test the sensor with a multimeter
Disconnect the sensor and measure resistance. At room temperature (~77°F), most thermistors read 3,000-10,000 ohms. If it reads 0 (short) or infinite (open), it's failed.
Unplug the appliance before testing electrical components. -
Step 5: Replace the sensor
If the reading is out of spec, order a replacement thermistor for your specific model. Installation usually requires only a screwdriver.
Parts You Might Need
If troubleshooting doesn't resolve error E02, you may need to replace one of these parts:
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When to Call a Professional
If the error persists after replacing the sensor, or if you're uncomfortable working with electrical components
- Control board diagnosis requires specialized knowledge
- Intermittent sensor faults can indicate deeper wiring issues
- Incorrect diagnosis could lead to unnecessary part replacements
Video Repair Guides
Watch a repair walkthrough for this error code on YouTube:
Search YouTube for "Bosch dishwasher error E02 fix"Models Affected
This error code has been reported on the following Bosch dishwasher models: