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Old 04-24-2017, 08:41 PM   #1
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2010 3750fl water heater issue ...need help

UPDATE: Yesterday I entered another post below stating the issue was solved...it was for a couple hours, but now everything has returned the way it was as stated below. Thank you for your replies

Our propane water heater ignites for 5 to 6 seconds...then shuts off.

This started when the 30lb propane tank went to empty

Replaced it with a new tank that was purged before putting in the propane

Maybe one or both could have started this....or something else.

The water heater runs fine on electric

Propane is flowing to the kitchen stove...all is well here.

All help and suggestions greatly appreciated.

Thank you


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Old 04-25-2017, 05:33 AM   #2
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Hi Mike, sorry to hear about the troubles. My guess would be the thermal couple, since it's obvious you have propane in the lines. I don't have experience replacing a thermal coupleNJ on an RV water heater so don't know what all that would entail. But in residential appliances is not that expensive, though sometimes a bit awkward to work on.

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Old 04-25-2017, 06:11 AM   #3
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Can you be a little more specific on what it's doing? "Ignites for 5 or 6 seconds"....do you hear the burner come on then shut off? Does the blower ever come on? Does it ignite right off the bat or does it click, click before it starts?
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Old 04-25-2017, 06:19 AM   #4
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Is this a Suburban water heater if so try pressing the reset there are 2 reset buttons one for gas and 1 for electric the gas reset is on the right side it may be that the thermal couple is no good
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Old 04-25-2017, 07:59 AM   #5
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Pix of our waterheater...thx for your help

Thank you for your replies.

Attached is a pix of our Surburban water heater

Please see my answers to your questions to help in the replies
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Old 04-25-2017, 08:33 AM   #6
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Apologize for this post as my wife read the manual and see pix for what solved this.

Per manual:
We did the ignition cycle 2 times with results as I stated in my post with same issue continuing....on the third cycle it stayed on per part 8 of the attachment and all is back to normal.

Little consolation for wasting your time = all of you can be 106% sure I have not heard the last of this from her!!!!

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Old 04-25-2017, 08:42 AM   #7
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Fix ...see attachment

Fix: see attachment

Now if any of you have an water heater idea on something I can do to make it look like another issue....and come to the rescue with a quick fix before she gets the manual out again.....this might grt me back even with the wife....might being the key word

Thx for your replies

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Old 04-25-2017, 08:57 AM   #8
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Thank You for your feed back !!!! Not wasting anyone's time, this is how we learn from each other !!!!
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Old 04-25-2017, 11:51 AM   #9
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When I was doing the walk through of my TT the WH kept sputtering but stayed lit. The tech said it was normal. What he didn't say or possibly didn't know was once all the air was out of the lines it would work great with a steady flame. Just tell your wife you used the forum as a test case to see how quickly everyone would respond. If she believes you or acts like she does take her out for a fancy meal. Think of it this way, your DW now thoroughly understands the WH. Now you need to figure out a way to get her to read all the other manuals too. Have fun.

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Old 04-26-2017, 03:18 AM   #10
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No, no, no! Y'all have got this all wrong. From this moment on SHE is the tech for all things problematic. Slide won't slide? Call HER. Freezer won't freeze? Call HER. Leaves you to worry about stocking cold adult beverages and the like! Now, keep this in mind: If she doesn't gloat like you suspect then YOU are back to being the tech.
The most important thing to keep in mind for all of us is realizing how many gremlins can creep in when switching tanks or replacing empty tanks.

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