Bosch Dishwasher Error Code E09: How to Fix It

The Logic Verdict

My Take: The decision here is simple: is it time for a new dishwasher or not? You are looking at the cost of the part plus an hour or two worth of work, depending on how handy you are. If the machine is old, it might be time to upgrade. If you proceed, know that you have to replace the entire heat pump assembly, not just a coil.

What It Means

The E09 code indicates a Heating Element Failure. On Bosch dishwashers, the heater is built directly into the wash pump (Heat Pump), so you cannot replace it separately.

Common Causes

1. Burnt out heating element (integrated in pump).
2. Broken solder joints on the control board (less common for E09, but possible).
3. Wiring harness damage.

Step-by-Step Fix

1. Confirm the Failure: Use a multimeter to check resistance on the heater terminals. Open circuit (infinite ohms) means it’s dead.
2. Access the Pump: You will need to pull the dishwasher out and remove the side panel or bottom base.
3. Replace the Heat Pump: Remove the old pump and install the new assembly.

Resources

• Video Guide: Watch the repair video
• Parts: Heat Pump Assembly on Amazon