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Old 12-09-2011, 07:05 PM   #16
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Heater cycles off after 2 minutes, how to troubleshoot?


NOT a safe thing to do. Can be VERY dangerous to change the gas and air mixture thru the burners. The flame can start burning inside the burners and you can get a VERY dangerous flashback.

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Old 12-09-2011, 09:03 PM   #17
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Heater cycles off after 2 minutes, how to troubleshoot?


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Originally Posted by TheFinder View Post
I don't think I'll be able to remove the coil to clean it. It is behind the freon lines. I was able to remove the panel enough to look at it. I did find a foaming cleaner here that is meant for coils. I may try spraying that on top of the coil and see if that helps. If it was matted up and I sprayed that on the top of the coil do you think it would help? I would think it would drip between the fins and soften the matting...

On a side note I reduced the gas flow to the heater by turning the ball valve and it's been running for a good 20 minutes, longer than it has ever run. Maybe it was getting too much gas an producing too much heat?
No. Foaming coil cleaner will not clean the bottom side of the coil by spraying it on the top. Needs to be accessed and cleaned from the bottom. Once it's clean change the filters monthly to avoid the same thing in the future.

A gas ball valve is a shut off, not a pressure regulator. You're quite literally playing with fire there as yuri said. At this point my advice is hire someone before you end up getting hurt.
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Old 12-10-2011, 07:56 PM   #18
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Heater cycles off after 2 minutes, how to troubleshoot?


This coil you are showing is the evap coil for the air conditioning what does this have to do with heat nothing at all cut the coile out and heater should still run i have the same problem i trouble shooted it there is instructions inside the panel of a rheem same crap differnt name my problem is the controll board from a power surge power surge multible times from my son turning off meter many times hooking up something took ut fuse on my dryer took out washer controller microwave and a directv box and one telebision at different times and hot water heater on demand board never turn off meter without un plugging everything and use a lamp or something to accept power surge also check the orange vacuum hose for rodent teeth marks no vacuum burner turns off for safety reasons also flame sensor clean it another safety sensor so flame is on and not just gas
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Old 12-10-2011, 09:45 PM   #19
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Heater cycles off after 2 minutes, how to troubleshoot?


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Originally Posted by TERRY38121 View Post
This coil you are showing is the evap coil for the air conditioning what does this have to do with heat nothing at all cut the coile out and heater should still run i have the same problem i trouble shooted it there is instructions inside the panel of a rheem same crap differnt name my problem is the controll board from a power surge power surge multible times from my son turning off meter many times hooking up something took ut fuse on my dryer took out washer controller microwave and a directv box and one telebision at different times and hot water heater on demand board never turn off meter without un plugging everything and use a lamp or something to accept power surge also check the orange vacuum hose for rodent teeth marks no vacuum burner turns off for safety reasons also flame sensor clean it another safety sensor so flame is on and not just gas

Please don't speak unless you know what you're talking about.

I could tell you how the evaporator coil, used in heat extraction in coOling mode, plays a serious role in heating, but I'll let you think about it first.

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