F08
Hotpoint-Ariston Power Supply or Relay Stuck Fault

Oven shows F08 and may not start or may cut out; often linked to power supply or relay issues.

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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

Stuck heating relay on main PCB, Shorted triac or power component, Voltage fluctuation or brownout, Internal short on control board

How to Fix / Troubleshooting

Safety first: Disconnect the oven from mains. Work only if you are comfortable around electronic boards.

Step-by-step checks:

  • 1. Perform a hard reset: Turn off the breaker for at least 10 minutes. Restore power and see if F08 reappears immediately or only when a function is selected.
  • 2. Inspect main PCB: Remove the control panel or rear cover to access the main board. Look for burnt spots, cracked components, or a relay that appears heat-damaged.
  • 3. Check for signs of arcing: Inspect the relay contacts area and solder joints. Darkened or melted plastic around the relay suggests it is stuck or has failed.
  • 4. Evaluate replacement: Hotpoint-Ariston generally supplies the main control as a complete module. If there is any visible damage or if F08 persists after reset, replace the main power/control module with the correct part number.

Warning: Component-level repair on mains PCBs is not recommended for untrained persons due to shock and fire risk.

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Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board
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