E25
Bosch Dryer
Severity: ModerateWhat Does This Error Mean?
E25 on a Bosch dryer means the outlet air temperature sensor has reported a fault. This sensor monitors the temperature of air leaving the drum. The dryer uses this reading to control the heating and protect laundry from overheating.
Affected Models
- Bosch WTW87565GB
- Bosch WTH84000GB
- Bosch WQB145B0GB
- Bosch Serie 6 and Serie 8 Condenser Dryers
- Bosch Heat Pump Dryers
Common Causes
- Outlet temperature sensor (NTC thermistor) has failed
- Sensor wiring connector loose or corroded
- Lint blockage around the sensor probe affecting readings
- Control board fault causing incorrect sensor interpretation
How to Fix It
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Switch the dryer off and unplug it for 10 minutes.
A transient sensor error can clear with a power reset. Plug back in and restart a short drying cycle to see if E25 returns.
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Clean the lint filter and condenser.
A clogged lint system can cause temperature sensors to read incorrectly. Remove the lint filter and clean it. Run the condenser cleaning programme if your model has one.
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If E25 returns, call a Bosch technician.
The technician will test the outlet temperature sensor resistance and replace it if faulty.
When to Call a Professional
E25 requires a technician to access the outlet duct area and sensor wiring. Sensor diagnosis and replacement is a professional repair on Bosch dryers.
Frequently Asked Questions
Is E25 dangerous on a Bosch dryer?
E25 is a sensor fault, not an overtemperature event. However, without the outlet temperature sensor working correctly, the dryer cannot reliably prevent overheating. Get it repaired before continued use.
What does the outlet temperature sensor do?
The outlet sensor measures the temperature of air as it leaves the drum. The dryer adjusts its heating element to keep this temperature in the correct range — hot enough to dry but not hot enough to damage clothes.