Viking
Control Lockout / Safety Interlock
Unit is on, but the compressor and pump never start; only lights are on.
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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
Bin full sensor stuck in the full position, door switch indicating open, active error lockout not cleared, faulty main control board relay.
How to Fix / Troubleshooting
Safety first: Disconnect power before testing switches or sensors.
- Step 1 – Verify door closure: Ensure the bin door is fully closed and the switch actuates properly.
- Step 2 – Check bin sensor: Test the bin level sensor or thermistor for proper operation; replace if it falsely indicates a full bin.
- Step 3 – Clear lockout: Unplug the unit for 10 minutes to reset the control. Some models require a specific button sequence to clear faults; consult the manual.
- Step 4 – Inspect control relays: If sensors are functioning correctly, the compressor or pump relay on the board may be stuck open. Replace the main control board if relays are not energizing with proper input.
After repair, confirm that the unit starts a normal cycle when turned on.
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Repair Difficulty
Hard
4/5
Required Part
Main Control Board
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