The Tank › Pilot problem
- December 21, 2007 at 3:32 pm #7758haireballParticipant
I have a 91 AO Smith 40 Gal Gas water heater. I can get it to run normal. The problem is when the furnace kicks on, i loose pressure the flame will drop to 1″ tall and eventually it will shut off. This happens to just the pilot or the flame of the burner too. i took the burner off and cleaned some rust off, swept out the chamber, cleaned the pilot, took the gas lines off to check for debris in the line, but nothing i noticed. Can the pressure be turned up at the outside gas meter? I have been lighting it when i go to bed and at lunch for the past week. it keeps the water hot, but i don’t want to keep doing this forever
I tried to ask a plumber, but he was only interested in selling me new one. mine has a fan the sucks the exhaust out, and he told me a new one would cost $1000.00 because of the exhaust fan. If that is true, i would be better off buying and electric one… sorry for the venting just frustrated, any suggestions would be great
haireballDecember 21, 2007 at 4:40 pm #7761Larry WeingartenParticipant
Hello: It sounds like the gas line supplying furnace and water heater is too small. So, the right fix is to upsize that line. Might be the easy fix is to derate the main burner of the furnace, so it draws less gas and doesn’t lower pressure in the gas line enough to shut down the water heater. A good heating tech will know how to safely do this 😉
Yours, LarryDecember 27, 2007 at 8:28 am #7804haireballParticipant
My problem ended up being the gas line had water in it. the gas company came out and blew air in the line and water came out…, it was somehow being restricted on their end.December 27, 2007 at 10:58 pm #7813Larry WeingartenParticipant
Hello and thanks for reporting back. I wonder how water got into the gas line 😯
Yours, LarryJanuary 4, 2008 at 6:30 am #7863concernedParticipant
Another concern about the pilot or maybe the burner – we have a gas water heater and we are concerned because it makes a huge racket – like when a gas burner turns on, but loud popping and crackling. At times it is a quick pop and other times it is a prolonged sound maybe 5 seconds or more. It happens frequently throughout the day, not just when we run the water. We do hear what sounds like the burner turning on with a softer, quieter, more ‘normal’ sound too, so this loud sound doesn’t happen every time. It’s the kind of sound that makes us nervous that something is wrong – but – getting a professional to stand there and wait for it to make that sound could be very costly. I am hoping someone can help me identify what it might be or give me an idea of how to talk to a professional about it.
January 4, 2008 at 9:17 am #7864Squ1rrelParticipant
Have you had it flushed? It could be sediment buildup causing the noise.January 4, 2008 at 12:42 pm #7868Randy SchuylerKeymaster
Yes. You definitely to go back to the home page, click on The Basics, and then read the entry on sediment and how to control it.
Randy SchuylerJanuary 4, 2008 at 9:25 pm #7877concernedParticipant
Thank you both – This is a dream – to get good information so quickly.
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