How to Fix a Gas Oven that Won't Heat: Troubleshooting Gas Range Problems
See the written version of this troubleshooting here:
This #diy video from Sears PartsDirect shows you what to do if your gas oven won’t heat. Several things could cause your oven to stay cool. You could have a problem with your gas supply, or you might have a bad igniter. But you could also have a problem with the electronic control board or the safety gas valve. This video shows you how to use a multimeter to check for continuity between these parts and locate which component is causing the problem.
1. Check the gas supply
If the stovetop burners work, the oven should be getting gas as well. If the burner isn't working, make sure the gas supply cut-off valve open. If it is open and the oven isn’t not getting gas, contact your gas supplier to figure out what’s wrong.
Some ranges have a service cut-off valve on the pressure regulator that shuts off the gas supply to the oven and not the surface burners. If your range has one, make sure that the service valve is open.
2. Check the oven burner igniter
When the oven is cold, pull the bottom panel out of the oven. Start the oven and see if the igniter glows. The igniter can glow but not get hot enough to open the safety gas valve. If you're uncertain whether your glowing igniter has failed, have a trained service technician check the amp draw through the igniter circuit.
3. Check resistance on the igniter using a multi-meter
Unplug the range, to be safe while checking resistance. To check the resistance of the igniter, put the meter leads on the igniter terminals. If it measures between 10 and 2500 ohms, the igniter is okay. If the igniter measures no continuity, replace the igniter.
4. Check resistance on the safety gas valve
The safety gas valve should measure less than 5 ohms of resistance. If the safety gas valve measures no continuity, have a service #technician replace that part.
5. Check the wiring and the electronic control board
Pull off the back panel and check resistance through the ignition circuit at the electronic control board. If you measure resistance through the ignition circuit, replace the electronic control board. If you measure OL through the ignition circuit wiring, trace the wires through the ignition circuit and repair the broken wire.
If you need to have a Sears Service Technician diagnose and #repair your range, schedule service here:
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The video includes these parts and tools. Look up your model to make sure you get the right parts for your range.
Igniter
Electronic Control Board
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