Gas oven not heating. Now that your oven is preheating at 350 degrees Fahrenheit, you’re busy cleaning up the mess of cake batter and frosting next to the sink.
You chat with a friend over the phone while washing out the bowl, but notice that though you turned on your oven light, there’s no message from inside your oven saying it had reached the right temperature.
You turn off the water and take a look inside. With a sinking feeling in your gut, you realize that opening the oven door has let heat escape – you forgot to put seals around one of your oven door’s edges to keep heat inside.
Gas oven not heating
If your gas oven isn’t heating, it’s most likely 
the result of a faulty igniter or heating element. If your gas oven and burners fail to light, there is probably something wrong with the gas line, and this will require a more substantial repair.
A faulty thermostat
The thermostat acts as a fuse for the oven by monitoring its temperature and then switching the power to the igniter off when it reaches a given threshold.
A defective thermostat will not send the igniter any voltage thus causing an electrical outage for this essential part of your oven.
With a multimeter, test the state of continuity across two terminals on your stove’s thermostat to see if you notice any physical contact between them or not.
A defective igniter
An igniter’s performance can deteriorate over time. Keep an eye on the cover or any other shields so you can make sure to remove them when using your oven for a period longer than ninety seconds.
Generally, if an igniter becomes exposed but does not light, it is faulty. Test it with a multimeter to determine whether it has continuity, and if it does not, then it should be replaced with a new igniter.
How do I know if my gas oven igniter is bad?
Don’t worry! Your Modern Range has a built-in safety mechanism that is designed to shut off the gas flow if there is an issue with the ignition.
To check your igniter, first, make sure you turn the breaker off for your stovetop, then verify it’s completely off by checking to be sure that the oven light and clock are not working.
Safety valve not working
Although this is not a common problem, the bimetal arm inside the safety valve may fail to open. This will hold back gas from entering the burner tube and could potentially lead to damage for instance if the burner overheats with no gas to consume.
You can use a multimeter to test the valve for continuity which will determine if there are any electrical issues preventing it from acting as designed while also allowing you to check whether internal damage has occurred in this part of your range.
The spark electrode is damaged
In some range ovens, a spark electrode is used to ignite the gas in the burner tube, similar to a spark plug.
If the porcelain housing or electrode tip shows any signs of cracking or damage, the component has failed.
Burnt or loose wire connections
An igniter or electrode power supply wire burned out could be due to the insulation on the wire becoming brittle. However, it is possible that a small splice in the wire may have developed a short.
Make sure the ignition is free of damage. It can be confirmed by looking for frayed strands around the connector at the igniter end of the wire.
The operator should check if there was any damage during the application, installation, and services by using an ohmmeter to measure continuity from one end of cable/wire to another end.
An oven control board that does not work
You can inspect the control board or relay board once you’ve ruled out other oven components. Depending on the temperature setting, the control board switches the electricity on or off.
The gas oven won’t reach the correct temperature
Turn the temperature sensor on, and see if it’s working by using an ohmmeter to check out its functionality. If not, replace it with a new one.
Make sure that the heating element is working properly and if it isn’t, then replace it immediately. If everything has been checked or replaced, then make sure the oven goes through a recalibration process so that you’ll know after that that it’s fully functional again.
Gas oven not heating
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