F7
Hotpoint
Microcontroller or Clock Circuit Failure
Microwave shows F7 and may beep continuously or refuse to start.
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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
Main control board microcontroller fault, Power supply to control board unstable, Damaged clock/timing circuit, Surge-damaged components on PCB
How to Fix / Troubleshooting
Safety first: Disconnect power before any disassembly.
- Basic reset: Unplug the microwave for at least 15 minutes to fully discharge the control board. Plug back in and test.
- Check outlet and power: Verify the wall outlet provides stable voltage and is not shared with heavy loads (like refrigerators) that may cause dips.
- Inspect control board: Remove the outer cabinet and examine the main control board for burnt components, bulging capacitors, or corrosion.
- Replace control board: F7 almost always indicates a failed main control board. Replace with the exact Hotpoint part number for your model.
- Professional help: If you are not experienced with electronics, have a technician perform the board replacement and safety checks.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board (PCB)
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