Why Is My Oven Not Heating Properly?
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An oven that won't reach temperature or heats unevenly is one of the most common faults. There are several likely causes depending on whether your oven is electric or gas.
Electric Oven Not Heating
- Failed heating element: The most common cause. The element burns out over time. Cost to fix: £80–£140.
- Faulty thermostat: The thermostat controls the temperature. If faulty, the oven may under- or over-heat. Cost: £100–£160.
- Temperature sensor fault: Often confused with the thermostat. Cost: £80–£120.
Gas Oven Not Heating
- Gas valve fault: The valve controls gas flow to the burner. Cost: £100–£180.
- Igniter fault: If the igniter glows but doesn't spark reliably. Cost: £90–£150.
Fan Oven Heating Unevenly
If a fan oven cooks unevenly, the fan element or fan motor may be faulty. The fan is meant to distribute heat evenly — when it fails, hot spots develop. Cost: £90–£150.
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