Bosch · Dishwasher Serious

E09 — Heating Element Fault

Per Bosch's official US error-code page, E09 means there is a heat pump internal heater fault/error.

Keep using it?
Limited use only
DIY difficulty
Hard
Typical cost
$60-140
Verified against
bosch-home.com ↗

The fix

Flow-through heating element

Heating element open / no heat

$60-140 hard difficulty 90 min Tools: screwdriver, nut driver, pliers, multimeter

Diagnose first: Heater element open-circuit; on newer Bosch units the heater is part of the circulation pump housing.

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Didn't resolve it? Next suspect: Wash pump (heater is integrated on some models) ($120-250)

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How to fix it

  1. Power-cycle at the breaker to rule out a glitch.
  2. If E09 returns, the heater (often integrated with the circulation pump) needs testing/replacement.
  3. This is an advanced repair — consider a technician.

Why it happens

Typical signs: Dishes come out cold and wet · Poor cleaning · E09 on the display

  • Failed heating element The flow-through heater (part of the circulation pump on many Bosch models) has failed.
  • Control board fault Less commonly, the board that drives the heater.

Other parts sometimes needed

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

  • Bosch Dishwasher Heat Pump / Circulation Pump Common replacement
    Amazon →

More Bosch dishwasher codes

E01 E01 — Control board fault E02 E02 — Heating element / NTC sensor fault E03 E03 — Water not heating E04 E04 — Water flow / flow meter fault E05 E05 — Overfill / float switch tripped E06 E06 — Door-Closure or Aqua (Turbidity) Sensor Fault

All Bosch codes → All dishwasher codes →

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: bosch-home.com.