Thermador Dishwasher E07 Error: Drying Fan Failure
thermador dishwasher e07 error indicates drying fan failure. Review the diagnostic steps below before calling a technician for help. What Does Thermador Dishwasher Error Code E07 Mean? The E07 error code on a Thermador Sapphire, Star-Sapphire, Emerald, or Topaz dishwasher indicates a fault in the drying fan system. Thermador dishwashers use a small fan motor […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Maybe. E07 does not affect washing — dishes will be cleaned normally. Drying will be poor until the fan is repaired. You can continue using the dishwasher if you open the door after the cycle to air-dry, but schedule service within a week.
Can I reset the code?
Yes. A breaker reset can clear E07 if the fault was a transient speed sensor reading. If E07 returns on the next drying phase, the fan motor or sensor has failed and must be replaced.
When to stop immediately?
Stop if you notice: E07 returns on every cycle at the drying phase, Burning smell from the drying vent area during the drying phase.
Symptoms You May Notice
Dishes and interior surfaces are wet at the end of every cycle
After a complete cycle including the drying phase, both racks of dishes are noticeably wet — water droplets remain on plates, glasses, and the stainless interior walls.
No fan noise heard during the drying phase
Thermador Sapphire and Star-Sapphire dishwashers make a gentle fan noise during the drying phase. With E07, this sound is absent, confirming the fan is not running.
E07 appears near the end of the cycle on the display
The fault code surfaces during the drying phase rather than at startup, indicating the fan motor failed during normal operation rather than being absent at self-test.
Possible Causes
Failed drying fan motor
The small electric motor that drives the drying fan has burned out or seized and no longer rotates when power is applied by the control board.
Requires ProfessionalFan blade obstructed by debris
A food particle, broken glass shard, or piece of packaging that entered the drying air path has jammed the fan blade and stopped it from turning.
Requires ProfessionalFaulty fan speed sensor or wiring connection
The sensor that measures fan rotation speed has failed or its wiring has come loose, causing the control board to read zero speed and flag E07 even if the fan is spinning.
Requires ProfessionalSafe Checks You Can Do
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1
Perform a hard reset and run a full cycle with rinse aid filled
Switch the circuit breaker off for 60 seconds and restore power. Confirm the rinse aid dispenser is full. Run a complete cycle and listen near the bottom of the door during the drying phase for the subtle fan sound.
On Thermador Emerald dishwashers with Zeolite drying, the fan sound is quieter than on standard models. If you hear any fan noise during drying after the reset, E07 may have been a transient sensor fault.
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2
Ensure the dishwasher interior is not overloaded
An overpacked load with dense items covering the lower rack completely can physically restrict the drying airflow path. Remove one or two large items from the lower rack and run another cycle.
Thermador Star-Sapphire dishwashers have a specific air circulation path that relies on space between dishes. Nested bowls or stacked items sitting in the fan exhaust path will impede drying regardless of whether E07 appears.
When to Call a Professional
Contact a qualified technician if:
- Drying fan motor shows open circuit when measured at the connector
- Fan blade visible through exhaust vent but does not spin freely by hand
- Fan speed sensor reads zero volts with motor powered and blade confirmed unobstructed
Need Professional Help?
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