How to Fix Bosch Dryer Error E18

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⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.

Error Code: E18 Difficulty: Moderate

Problem: Heater temperature sensor (NTC) error.

⚖️ Repair Decision

✅ WORTH FIXING

Parts under $100

How to Fix E18 Error (Step-by-Step)

Unplug the dryer from the electrical outlet and confirm the error stays cleared during a full test cycle.
Locate the heater NTC sensor, which is typically mounted on the heating element housing at the back of the dryer.
To access it, you will likely need to remove the rear panel of the dryer.
Disconnect the wiring from the sensor and confirm the error stays cleared during a full test cycle.
Remove the screw that secures the sensor and take out the old sensor.
Place the new NTC sensor in the same position and fasten it with the screw.
Reconnect the wiring, replace the rear panel, and plug the dryer back in.
Turn the appliance off, wait about 2 minutes, then turn it back on.

OEM Part #: NTC Sensor

Estimated Market Price: $15-$50

Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.

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Appliance Age

Estimated repair cost (parts, or parts + labor) Most DIY parts are $50–$250. If you have a quote, use the total.

Is it under warranty?

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