Bosch dishwasher error code

E09

Heater fault

The heating element inside the heat pump (circulation pump) has a fault, so the water is not heating.

Also shown on some Bosch models as: E:09 E6001

Try these free fixes first

Unplug the dishwasher before opening any panel.

  1. Switch off the dishwasher's breaker for at least 30 seconds, then turn it back on.
  2. Run a normal cycle to see if the code clears.
  3. Make sure the filters are clean so water flows freely through the pump.

Still showing E09?

If E09 returns after a power reset, call a technician; the heat pump with its built-in heater usually needs replacing.

Heat pump (circulation pump with heater)Check that the part matches your exact model number (usually on a sticker inside the door or on the back).Find the part
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Questions people ask

What does E09 mean on a Bosch dishwasher?

E09 on a Bosch dishwasher means: heater fault. The heating element inside the heat pump (circulation pump) has a fault, so the water is not heating.

How do I fix Bosch dishwasher error E09?

Switch off the dishwasher's breaker for at least 30 seconds, then turn it back on. Run a normal cycle to see if the code clears. Make sure the filters are clean so water flows freely through the pump.

When should I call a repair technician?

If E09 returns after a power reset, call a technician; the heat pump with its built-in heater usually needs replacing.

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Source: Bosch official support · Reviewed 2026-10-01