h10Serious
Frigidaire Dishwasher h10 Error Code
The heating relay on the control board is stuck or failed, potentially causing overheating or no heat.
Common causes
- Faulty relay on main control board
- Short circuit in heater circuit
- Control board damage from power surge
How to fix it
- Unplug dishwasher for 30 minutes to reset control board.
- Check for loose wires at heater and control board.
- Inspect heater element for continuity with a multimeter (if comfortable).
⚠ When to call a pro: Call a technician to replace control board or relay; not a DIY repair.
Part links are affiliate links — as an Amazon Associate we may earn a small commission at no extra cost to you.
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.