Nuwave UI Power Loss / Stuck Relay

Nuwave air fryer touch panel does not light up, but fan and heater start when plugging in (no user control).

Advertisements

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.

Advertisements

Possible Causes

Shorted heater relay stuck closed, failed low-voltage supply to UI, disconnected UI harness, main control board failure

How to Fix / Troubleshooting

Safety First: Unplug the unit immediately if it starts heating without user input. This is a serious safety issue.

Step-by-step checks:

  • Do not use: Do not attempt to operate the air fryer until the fault is corrected.
  • Inspect UI harness (advanced): With the unit unplugged, remove the control panel and check that the UI board harness is connected firmly to the main board.
  • Check for stuck relay: On the main board, locate the heater relay. Look for signs of melting or discoloration that indicate it may be welded closed.
  • Replace main board: Replace the main control board if the relay is stuck or if the UI is not receiving power.

Warning: A heater that turns on without control input is a fire hazard. If you are not comfortable replacing the board, discontinue use and seek professional service.

Advertisements

Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements