I'm running out of options. Gas heater cuts off after about 10 minutes. Have thoroughly cleaned all vents (in dryer and out of house). Have replaced both hi-limit (on heating element) and cut-off (on blower) switches with brand new parts. After gas burner stops working, it looks like electric pilot is still cycling on (seeing a slight glow). Hearing a soft clicking noise - not sure if that is pilot starting or valve controlling gas. Any thoughts on what else a DIY could do - or what it might cost to fix this if it's major? Thanks in advance for the help.
When I had no heat I changed the thermal fuse. You reach it from the back and is held in by 1 screw. It is a cheap place to start only $13. I also told someone at work with the same problem and it fixed the problem.
Most likely a faulty thermocouple. The gas will get turned off if the themocouple does not sense the pilot light.
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For eggentam - here's a summary of the possible fixes that I got. Ultimately mine was a faulty valve coil.
Step 1 - make sure gas is on (e.g. valve not closed)
Step 2 - make sure vent is clear and not clogged
Step 3 - does heat come on at beginning, but then turn off and not return?. If no, heat never comes on - then check out comment by Vish2 above. Maybe something with pilot.
Step 4 - Does heat come out at begining, run for 5-10 minutes then cut out - only to work later when the unit has cooled down? If yes, then could be faulty valve coil (Dryer 'M' Valve Coil Set) - $20 for parts and easy to replace. Take off front of unit, they're on bottom left.
Step 5 - Does heat come on only to turn off quickly? If yes, then might be one of two thermostats - the hi-limit (on heating element) and cut-off (on blower) monitor heat levels. Both about $14 each, easy to replace, take off back of dryer.
That's the sum total of the fixes I did on mine. Good luck.
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