Code 14
Overhead Door
Low Line Voltage or Power Supply Fault
Overhead Door opener LED flashes 14 times and lights flicker when attempting to run
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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
Weak or shared circuit causing voltage drop, Loose power plug or outlet, Failing internal power supply on logic board, Incorrect extension cord use
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker before working on outlets. Do not open the logic board power supply unless qualified.
- 1. Check power source: Ensure the opener is plugged directly into a dedicated outlet, not an extension cord or power strip. Extension cords can cause voltage drop and are not recommended.
- 2. Test outlet: Plug a lamp or tester into the same outlet to confirm stable power. If the lamp flickers or is dim, have an electrician inspect the circuit.
- 3. Inspect plug and cord: Check the opener's power cord for cuts, kinks, or burn marks. Ensure the plug fits snugly in the outlet.
- 4. Avoid shared high-load devices: Do not run large appliances (air compressors, heaters) on the same circuit as the opener.
- 5. Power cycle the opener: Unplug for 60 seconds, then plug back in. If the 14-flash code returns immediately and other devices on the circuit are fine, the internal power supply on the logic board may be failing.
- 6. Replace logic board or power module: Install a new Overhead Door logic board or power supply module as specified for your model.
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Repair Difficulty
Medium
3/5
Required Part
Logic Board with Integrated Power Supply
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