Why Is Your Gas Oven Not Heating Up?

If your gas oven isn’t heating up, you’re in the right place. In this article, we will give you step-by-step instructions on how to find the cause of the problem and fix it. Simply start with the first possible cause and work your way down the article until you can get your gas oven working again.

The power supply might be faulty.

The best place to start is to check the power supply to ensure your gas oven is getting power. If your oven is turning on but not working, you can skip straight to checking the gas supply (see below). 

To check the power supply, you need to:

1. Start by making sure the circuit breaker that supplies power to your oven hasn’t tripped. If it has tripped, turn the circuit back on and then turn your oven back on and check if it has started working again. 
2. If the circuit breaker is turned on and your oven isn’t turning on, check that the oven is properly connected to the power socket. If it is plugged into the power socket correctly, try to use a different power socket to see if the problem is the power socket.
3. If your oven works in a different power socket, the original socket you use for your oven will need to be repaired or replaced. If your oven doesn’t work in a separate socket, the power cord will need to be repaired or replaced. If your oven turns on but doesn’t work, check the gas supply (see below).

The gas supply might be faulty.

If your oven is turning on but not working, the next step is to check if the gas supply is working correctly. If it becomes blocked, your oven won’t get any gas supplied to it and your gas oven will not heat.

Here’s how to check the gas supply:

1. Start by making sure the main gas valve is turned on.
2. If the gas valve is turned off, turn it on and check if this solves the problem.
3. If the main valve is turned on, try to turn your oven on and check if you can smell gas coming out of the oven. If you can smell gas, this means the gas supply is working correctly. If you cannot smell gas, get a qualified technician to come and inspect your gas supply line.

The igniter might be faulty.

If the power and gas are both working, the next possible cause to investigate is the igniter. The igniter is what ignites the gas so your oven can heat up. If it becomes faulty, your oven will stop working.

Here’s how to check the igniter in your gas oven:

1. Remove the racks and any other objects from your oven.
2. To access the igniter, you may need to remove the bottom cover from your oven.
3. Locate the igniter and check if you can see any signs of damage or discoloration. If damaged in any way, this is a good sign it’s defective and has to be replaced.
4. If the igniter looks ok, try to turn your oven on.
5. If the igniter doesn’t ignite the gas, replace it. If it does ignite the gas, you can move on to checking the gas burners (see below).

If you need to replace the igniter, you can do it by:

1. Order the correct replacement igniter.
2. Turn the power and gas supply off to your oven.
3. Remove the gas igniter from your oven (this usually just involves removing a couple of screws).
4. Install the new igniter and secure it in place with the screws you removed earlier.
5. Turn the power and gas supply back on.
6. Test if the new igniter lights up the gas. If not, you will need to check the gas burners (see below).
7. If the new igniter is working and your oven now heats, you can reattach the bottom cover, put all racks back into your oven, and start using it again.

The gas burners might be blocked.

If the igniter is working correctly, the next component to check is the gas burners. Sometimes, they can become blocked up which stops your oven from being able to heat correctly or at all.

Here’s how to check the gas burners:

1. Turn the power and gas supply off.
2. Locate the gas burners and remove them from your oven.
3. Check if they are blocked or covered in debris. If so, give them a clean and then place them back into your oven. If they are not blocked or dirty, you can put them straight back into your oven and then check the safety valve (see below).
4. Turn the power and gas back on and then check if your oven is now working correctly. If not, check the safety valve (see below).

The safety valve might be faulty.

The safety valve works in conjunction with the igniter to supply gas to the gas burner. When it becomes defective, your oven might not heat or turn on at all. If you still haven’t found the cause of your oven not working, you can check the safety valve with a multimeter, and if defective, replace it. If you don’t have a multimeter, you will need to get a qualified technician to inspect it.

Here’s how to test the safety valve:

1. Turn the power and gas supply off.
2. Locate the safety valve (consult your user manual if required).
3. Disconnect the safety value and then test it with a multimeter.
4. If the valve doesn’t have continuity, replace it. If it does have continuity, it isn’t the cause of the problem so you can reattach it to your oven and then consider replacing the temperature control thermostat (see below).

The temperature control thermostat might be faulty.

The final component to check if you haven’t worked out why your gas oven isn’t heating is the temperature control thermostat. The purpose of this thermostat is to monitor the temperature inside your oven and then tell the control board to turn the burners up when the temperature gets too low. If it becomes faulty, your oven will not work correctly. Testing the thermostat is difficult, so your best option is to simply replace it and then check if your oven works correctly. You can also consider getting a qualified technician to come and inspect your oven to see if they can fix it.