E16
OK Intermittent Door Interlock / Safety Chain Fault

Microwave shows E16; interior light and fan may run but no heating occurs intermittently

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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

Loose door switch mounting bracket, Worn door latch hooks, Intermittent door switch contacts, Loose door switch harness connector

How to Fix / Troubleshooting

Safety: Unplug the microwave before accessing door switch components.

  • 1. Wiggle test: Start a short cook cycle with a cup of water, then gently press or lift the door handle (do not open). If the unit stops or E16 appears, the door interlock is intermittent.
  • 2. Inspect latch and hinges: Check for play in the door hinges and wear on the latch hooks. Replace worn latch parts.
  • 3. Tighten switch brackets: Remove the cover and locate the door switch assembly. Tighten any loose screws holding the switches and bracket.
  • 4. Replace suspect switches: Even if they test okay, switches that arc or feel rough when actuated should be replaced as a set.
  • 5. Reseat harness connectors: Ensure all connectors in the door switch circuit are fully seated.
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Repair Difficulty

Medium 3/5

Required Part

Door Interlock Switch Set
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