F05Serious
Speed Queen Dishwasher F05 Error Code
The heating element relay has failed, possibly causing overheating or no heat.
Common causes
- Solder joint failure on control board
- Relay welded shut
- Heater element shorted
How to fix it
- Unplug dishwasher immediately and leave unplugged for 5 minutes.
- Do not operate until relay is replaced.
- Contact technician for control board replacement or relay repair.
⚠ When to call a pro: Immediately call a technician; do not attempt repair unless qualified.
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Always unplug the appliance (and turn off the water for washers/dishwashers) before inspecting. These guides are for information only and are not a substitute for a professional repair.