Microwave interior light does not turn on when cooking or when the door is opened.
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.
Possible Causes
How to Fix / Troubleshooting
Safety: Unplug the microwave before any lamp replacement. Accessing the lamp often requires removing the cabinet or control panel, which exposes high-voltage components.
User-level steps:
- 1. Confirm only light is affected: Ensure the microwave still heats and all other functions work normally.
- 2. Check door behavior: Open and close the door; if the light never comes on but cooking is normal, the lamp is likely burned out.
On many Breville models, the cavity lamp is not user-replaceable without accessing internal components. For safety, have a technician replace the lamp and inspect the lamp socket and door switch if needed.