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Old 05-27-2014, 11:13 AM   #1
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Suburban Water Heater

I have a SW10DE hot water heater. Electric works great. When I turn on switch for propane it will only fire up, nice flame but will not stay on does its 3 cycles then have to turn off switch and start again. Frustrating... the reset buttons on the outside are not needing reset, any good suggestions before I have to take it to a shop?
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Old 05-27-2014, 11:23 AM   #2
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Quote:
Originally Posted by fireman155 View Post
I have a SW10DE hot water heater. Electric works great. When I turn on switch for propane it will only fire up, nice flame but will not stay on does its 3 cycles then have to turn off switch and start again. Frustrating... the reset buttons on the outside are not needing reset, any good suggestions before I have to take it to a shop?
Sounds like air in the line. Turn all the stove burners on for a few minutes and then try the water heater again.
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Old 05-27-2014, 11:46 AM   #3
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Thanks for the suggestion. Gas pressure is good. The gas valve keeps shutting off the gas during the cycling other than that the flame is perfect.. thx
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Old 05-27-2014, 11:59 AM   #4
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I have the basic model, no elec, no auto ignition. The pilot blows out in the least amount of wind. no pilot..no fire.
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Old 05-27-2014, 12:02 PM   #5
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All electronic here. No pilot light.
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Old 05-27-2014, 12:06 PM   #6
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Bad flame sensor would be my guess.

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Old 05-27-2014, 12:16 PM   #7
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Any ideas where that would be because I cant find one anywhere. thx
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Old 05-27-2014, 12:29 PM   #8
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Donno if it's like the furnace or not but if it is- the flame sensor is merely
the spark gap. The board is able to detect flame due to the slight amount
of current that passes thru the flame.
(A flame has slightly less resistance than plain air)
The board senses this and you're good.
IF the board is flaky it won't happen and it will fault out.
Wait for more input from the experts here but it's starting to sound like
there's a dinosaur board in your future.

Good Luck!
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Old 05-27-2014, 12:36 PM   #9
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Thinkin Dan may be right. Here is a troubleshooting manual.
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File Type: pdf Suburban Water Heater Service Manual.pdf (716.3 KB, 67 views)
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Old 05-28-2014, 04:33 PM   #10
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Boy I tell u I cannot find where they hide that control board for this darn water heater any thoughts.
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