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Old 02-19-2012, 07:25 PM   #1
jeff
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Default Pilot light will not stay lit.

Hello All, I've been troubleshooting this for the past three weeks. apollo water heater approx three years old. pilot light seems to go out whenever the main burner shuts off. First fix attempt, I removed the burner and pilot assy, cleaned, and blew out lines, put back on and worked great for about two days. Second attempt, replaced pilot light assy, once again, worked for about two days. pilot light lights up fine, and if I leave it at a low temp, without the main burner coming on, the pilot light stays lit indefinitely. When I manually turn the temp up, causing the main burner to come on and than turn the temp back down so the burner goes out, the pilot light will stay lit. It seems to only go out when the burner shuts off automatically after water reaches correct temperature. Checked air vents on bottom of tank and they are clean. If anyone has a suggestion on what the problem might be, please let me know, Thank You.



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Old 02-19-2012, 10:19 PM   #2
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You need to replace your thermocouple.


www.americanwaterheater.com/support/manuals/nat_tc_instr.pdf



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Old 02-20-2012, 02:16 AM   #3
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post a pic of the base of the heater if you can, ill solve it for you

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Old 02-20-2012, 05:18 AM   #4
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thermocouple for sure..

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Old 02-20-2012, 09:37 AM   #5
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Replaced the thermocouple with the pilot assy.

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Old 02-20-2012, 11:48 AM   #6
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There was a problem with some of the newer gas heaters. They get there combustion air from under the heater through a filter. These filters after time, depending on the location of the heater would become plugged. They have a brush that is used to clean these filters.

http://www.statewaterheaters.com/cust/FVIRCleaning.pdf

John

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Old 02-20-2012, 04:40 PM   #7
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Checked filters at bottom of tank and they are clear

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Old 02-21-2012, 05:59 AM   #8
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so, is it working ?? or is the problem persisting ?? we're kinda in the dark .

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Old 02-21-2012, 09:35 AM   #9
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still not working, the only time it works for longer than a day is when I remove the pilot, burner and thermocouple from the valve and put them back on, then it works for a day or two and than the problem starts reoccuring.

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Old 02-21-2012, 12:18 PM   #10
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post a picture of the base, with the front sheild cover off



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