Hisense
Main Power Relay or Line Fuse Failure
Oven does not heat at all, but display and oven light work normally (no error code).
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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
Blown internal line fuse, Failed main power relay on control board, Loose connection at mains terminal block, Open thermal cut-out in series with elements
How to Fix / Troubleshooting
Safety first: Turn off power at the breaker and verify with a tester that the oven is de-energized.
- Check terminal block: Inspect the mains terminal block for loose or burnt connections. Tighten and repair as needed.
- Inspect internal fuse: Many Hisense ovens have an internal line fuse on or near the control board. Test it with a multimeter and replace with the exact same rating if blown. Investigate why it blew (shorted element, wiring, etc.).
- Thermal cut-out: Test any series thermal cut-outs for continuity. Replace if open.
- Control board relay: If fuses and cut-outs are good, the main heater relay on the control board may have failed. Replacement of the board is usually required.
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Repair Difficulty
Hard
4/5
Required Part
Internal Line Fuse
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