H1
Insignia
Cavity temperature too high at start of cycle
Display shows H1 or HI; oven indicates high temperature and may not start a new cycle.
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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
Oven still hot from previous use, Cooling fan not operating, Faulty temperature sensor reading high, Control board misreading sensor
How to Fix / Troubleshooting
Safety First: If the oven seems excessively hot, turn off power at the breaker.
- Allow cooling: Open the door slightly and allow the oven to cool until the temperature drops below the threshold. Then try starting the cycle again.
- Check cooling fan: Verify that the cooling fan runs when the oven is hot. If not, troubleshoot the fan motor and wiring.
- Test sensor: Measure the oven temperature sensor resistance at room temperature. Replace if it reads significantly lower than spec (indicating a falsely high temperature reading).
- Control board: If the sensor is correct but H1 appears when the oven is cold, the control board may be faulty and require replacement.
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Repair Difficulty
Medium
3/5
Required Part
Oven Temperature Sensor
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