PF
Logik
Power Failure / Brownout Detection
Microwave shows PF or flashes and resets the clock after a power interruption; may occasionally appear randomly.
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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
Recent mains power outage, Loose mains plug or socket, Intermittent internal power connection, Failing control PCB power supply
How to Fix / Troubleshooting
Safety: Unplug the microwave before inspecting the cord or internal connections.
Steps:
- 1. Confirm power event: If PF appears after a known power cut, simply reset the clock and use the microwave normally.
- 2. Check plug and outlet: Ensure the Logik microwave plug is fully inserted and the outlet is not loose. Avoid using extension leads.
- 3. Inspect power cord: Look for signs of damage, overheating, or kinks. If damaged, have the cord replaced by a professional.
- 4. Internal inspection (for competent DIYers): Remove the cover and check the mains input block, filter, and wiring for loose spade connectors or signs of arcing.
- 5. Monitor frequency: If PF appears frequently without actual power cuts, the control PCB's power supply may be unstable and require replacement.
If you smell burning or see scorch marks, stop using the microwave and contact a technician immediately.
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Repair Difficulty
Medium
3/5
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