Tower Power Supply Instability or Overload

Microwave stops mid-cycle and resets, or display flickers when starting.

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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 household circuit, loose mains plug, failing internal power supply on control PCB, intermittent main fuse connection

How to Fix / Troubleshooting

Safety: Avoid repeated restarts if the unit is resetting; this can stress components.

Steps:

  • 1. Dedicated outlet: Plug the Tower microwave into a dedicated outlet with no other high-power appliances.
  • 2. Check plug and cord: Ensure the plug fits tightly in the socket and the cord is not damaged.
  • 3. Short test: Run the microwave on a low power setting and observe if it still resets. If it only resets on high power, the circuit may be overloaded.

Advanced:

  • Inspect the control PCB power supply for failing capacitors or loose connections.
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Repair Difficulty

Medium 3/5

Required Part

Main Control PCB
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