F9 Fuse Open — Triac load fuse may be open

What does F9 Fuse Open mean?

The F9 fuse protects various triac-controlled loads in the dishwasher. If this fuse is open, multiple components may not function. This is often due to a short in one of the controlled components.

• Open F9 fuse
• Shorted triac load (e.g., fill valve, diverter)
• Faulty control board

Click steps to track your progress.

1. 1

   Unplug dishwasher or disconnect power.

2. 2

   Measure resistance of the F9 fuse. If resistance is greater than 3 ohms, the fuse is open.

3. 3

   Inspect all triac-controlled loads and their wiring for shorts or damage.

4. 4

   Replace the F9 fuse if it is open and no other faults are found.

5. 5

   If the F9 fuse blows again, replace the faulty triac load or the control board.