E05 — NTC Temperature Sensor Fault

How to fix it

1. Unplug the dryer.
2. Remove the back panel to access the heater assembly and air ducting.
3. Locate the NTC sensor (typically mounted on the heater housing or blower outlet).
4. Inspect the wiring harness and reseat the connector firmly.
5. Test the NTC with a multimeter for resistance at room temperature — replace if open, shorted, or wildly out of spec.
6. Inspect wire harness for chafing along the entire run to the control board.
7. If sensor and wiring test good, replace the main control board.
8. Reassemble and run a heat cycle to verify temperature stays in normal range.

Why it happens

Typical signs: No heat during cycle · Cycle ends early · E05 appears within minutes of starting · Erratic drying performance

• Failed NTC thermistor Sensor has drifted out of specification — typically reads 50-100k ohms at room temp on a good sensor.
• Disconnected sensor harness Connector at the sensor or main board has worked loose from vibration.
• Damaged wiring to sensor Chafed or pinched wire causes intermittent open.
• Failed main control board input Less common — board's ADC channel has failed.

Parts you may need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

• Bosch dryer NTC temperature sensor Common replacement
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