Microwave display is blank or flickering; unit may not respond to any buttons, or resets randomly during use.
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 removing any panels. Mains voltage is present on internal wiring.
User-level checks:
- 1. Verify outlet power: Plug another appliance into the same outlet to confirm stable power. Avoid using extension leads or multi-way adapters.
- 2. Check plug and cord: Inspect the Sage microwave's power cord for cuts, kinks, or burn marks. If damaged, do not use the appliance.
- 3. Power reset: Unplug the microwave for 10 minutes, then plug back in. Observe whether the display stabilizes.
Technician-level checks:
- 4. Inspect mains terminal block: With the cover removed, check that the mains wires are securely fastened and show no signs of overheating.
- 5. Check line filter and fuses: Test the line filter and any internal fuses for continuity. Replace only with Sage-specified parts.
- 6. Evaluate control PCB: Look for bulging capacitors, burnt components, or cracked solder joints on the control board. In many cases, the entire PCB must be replaced.
If the display remains blank or unstable after basic checks, a control PCB replacement by a qualified technician is usually required.
Repair Difficulty
Required Part
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