L1
Maytag
Low Temperature Alarm or Stuck Cooling Relay
Display shows L1 or “LO” and the interior temperature is too cold; bottles may be frosting.
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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
Faulty cabinet thermistor reading too warm, Stuck compressor relay on control board, Incorrect temperature setting, Control board logic fault
How to Fix / Troubleshooting
Safety: Unplug the cooler before accessing the control board or sensors.
- 1. Verify setpoint: Check that the temperature setting is appropriate for wine storage (typically 45–65°F depending on wine type). Adjust if set too low.
- 2. Check thermistor: Test the cabinet thermistor for correct resistance. A sensor reading too high can cause overcooling. Replace if out of spec.
- 3. Inspect control board relay: Remove the rear service panel and inspect the compressor relay on the main control board. If it appears burnt or stuck, replace the control board.
- 4. Power reset: Unplug the unit for 10 minutes to reset the control. If L1 returns and the unit continues to overcool, proceed with component replacement.
- 5. Monitor temperature: After repairs, use a thermometer to confirm that the interior temperature stabilizes at the setpoint and that the L1 alarm clears.
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Repair Difficulty
Medium
3/5
Required Part
Main Control Board
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