If your oven temperature is inaccurate, food can burn, undercook, or cook unevenly. This is a common issue that often develops gradually.
Accurate temperature control is essential for safe and reliable cooking.
Common causes of inaccurate oven temperature
Faulty thermostat
The thermostat regulates heat. If it fails, the oven may run hotter or cooler than the set temperature.
Replacement usually costs £100 to £220.
Defective temperature sensor
Many modern ovens use sensors instead of thermostats. When they fail, temperature readings become unreliable.
Sensor replacement typically costs £90 to £180.
Heating element problems
Elements that are partially failing can still produce heat but not at consistent levels.
Element replacement often costs £90 to £200.
Control board issues
If the board misreads temperature data, it may send incorrect signals.
Repairs range from £150 to £350.
Signs your oven temperature is wrong
- Food burning quickly
- Undercooked centres
- Long cooking times
- Inconsistent results
- Strong burning smells
Can I test the temperature myself
You can use an oven thermometer to check accuracy. If the difference is more than 20 degrees, a repair is needed.
Is this dangerous
Yes. Incorrect temperatures can lead to undercooked food and fire risks.
Related issues
Get a repair quote
Temperature faults should be diagnosed by professionals.
Visit our homepage to compare free local repair quotes.