F08
Hotpoint-Ariston
Heater Stuck On / Relay Welded
Dryer overheats or shuts down shortly after starting, F08 displayed, cabinet may feel excessively hot.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Welded heater relay contacts on main PCB, Shorted wiring causing heater to be permanently energized, Faulty temperature sensing causing incorrect control, Blocked airflow causing abnormal temperatures
How to Fix / Troubleshooting
Safety first: Unplug immediately if you suspect overheating. Do not continue to run the dryer until the fault is resolved.
- Clean airflow system: Thoroughly clean lint filter, condenser (if fitted), and exhaust duct. Ensure the fan impeller is not obstructed.
- Inspect control board: Remove the top cover and examine the main control board. Look for a heater relay that is discoloured or melted. A welded relay will often show heat damage.
- Check heater wiring: Inspect the wiring from the board to the heater for signs of shorting to chassis or each other. Repair any damaged insulation.
- Test operation (technician level): With the dryer reassembled and under supervision, a technician can check if the heater energizes immediately on power-up without a cycle selected, indicating a stuck relay.
- Replace control board: If the relay is welded or the board is damaged, replace the main control module with the correct Hotpoint-Ariston part.
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Repair Difficulty
Professional Required
5/5
Required Part
Main Control Board (Heater Relay)
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