An electric oven is slow to heat or not reaching the correct temperature most likely has a problem with the heating element. However it is also possible that the oven’s internal temperature is off. Some ovens have a dial that can be adjusted or calibrated. Other models have an electronic control board which regulates the ovens temperature that can be altered in order to provide a better baking experience. Here’s how to do this.
WARNING! Before attempting to work on any appliance, make sure that all power (electricity) and utilities (water and gas) have been turned off and/or disconnected on the appliance. Read this before you start any repair.
How to Test Your Oven’s Temperature
Get an oven-safe thermometer and place it in the middle of the center rack. Preheat the oven to 350 degrees Fahrenheit for 20 minutes. After 20 minutes, take your first reading to see how closely it is to 350 degrees Fahrenheit. Take a thermometer reading every 20 minutes over the next two hours. Add up all the readings and divide them by the number of readings taken to get an average reading. If the number varies greatly from the 350 Fahrenheit reading, then it is probably due to the bake or broil element.
How to Calibrate an Oven Thermostat Knob Video
How to Adjust the Temperature for an Electric Oven Using the Control Panel Video
Electric Oven Bake or Broil Element
If the oven is not heating or getting hot enough, this could be due to a faulty bake or broil element. Sometimes cracks or blistering can be seen on the heating element part itself, which indicates the part is damaged and should be replaced. The part can also be tested for continuity and if there is no continuity, replace the part.