E:20Bosch Dryer — Bosch Dryer E:20 Error Code
Temperature sensor (NTC) failure
Severity
Critical
Difficulty
Advanced
Est. Cost
What's Happening
One of the dryer's NTC temperature sensors has failed. Bosch heat pump dryers have multiple sensors — the error log identifies which one. Without accurate temperature data, the dryer can't regulate heat properly.
How to Fix It
Disconnect power and check sensor connections. On heat pump dryers, access the diagnostic mode to identify which specific NTC failed. The sensor needs professional testing and replacement.
Frequently Asked Questions
What does E:20 mean on a Bosch dryer?
E:20 indicates a temperature sensor (NTC) has failed. The dryer can't accurately monitor temperature for proper heat regulation.
How many temperature sensors does a Bosch heat pump dryer have?
Bosch heat pump dryers typically have 3-4 NTC sensors monitoring different parts of the heat pump circuit. E:20 means at least one has failed.
Can I identify which NTC sensor failed?
Yes, through the dryer's diagnostic mode. The error log records which specific sensor triggered E:20. A technician can access this information.