Good Sam Club Open Roads Forum: General RVing Issues: Water Heater Help
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BB_TX

McKinney, Texas

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Posted: 06/30/20 06:16pm Link  |  Quote  |  Print  |  Notify Moderator

CavemanCharlie wrote:

Maybe I read your post wrong. I often do that.

If you are running on electric and propane at the same time is it possible that it is simply shutting off because the water got hot enough and it didn't need to run anymore ???

That was my thinking when I asked if it happened while he was running on both at the same time. But he did not reply.

kfp673

PA

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Posted: 07/13/20 08:56pm Link  |  Quote  |  Print  |  Notify Moderator

Well I just had a chance to dig into this and try some suggestions. Thought I had it fixed but turned out I was wrong. Took compressed air to most of the parts. Blew out a ton of rust flakes. Didn't change the way it worked. Then, I noticed the "clicking" of the ignition was not consistent. Had a strange rhythm, so I pulled the ignitor prongs out and adjusted the gap just a touch. Put it back in and it sounded perfect. Fired right up. I let it run for 2 or 3 minutes. Thought I found the problem so I shut it off, gave it 3 or 4 minutes and tried it again. click, click, nothing. Second attempt it fired up again so right away I'm thinking we are good. That lasted about 15 seconds and it went off. Went through this over and over again probably 10 times with a combination of clicking and no light at all (other than the big flame pop that happens after 3 attempts) and lighting and going right off. I did notice that even when the burner fires up the ignitor often continues to click, so I feel like something is wrong with the sensor or some sort of electronic that says "I'm lit". Removed and reattached the ground wire to be sure. Got dark so I gave up. Really trying to avoid the hour drive to the dealer if I can.

Also, this is a Suburban water heater FYI.

Thanks

* This post was edited 07/13/20 09:23pm by kfp673 *

CavemanCharlie

Storden,MN

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Posted: 07/14/20 07:49pm Link  |  Quote  |  Print  |  Notify Moderator

I'm no expert but, I'm thinking that maybe your circuit board has gone bad.

When a old propane fridge quits working and acts like you water heater it is often the board.

I wonder if there is some way to test it ????

A1RVTraveler

North Carolina

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Posted: 07/15/20 06:32am Link  |  Quote  |  Print  |  Notify Moderator

Could you contact a Mobile RV tech?

down home

south

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Posted: 07/15/20 04:54pm Link  |  Quote  |  Print  |  Notify Moderator

Our 15 year old mh has an Atwood electric and or propane 10 gal something high recovery water heater. Only real problems we had was last year and replaced both high and low thermostats. The manual has some instructions on cleaning the orafice with a mall diameter wire about the size of the tiny wire used on old tags for equipment. On line, I haven't looked, but there were variosu psots everywhere on cleaning the orafice. The one thing I don't like is the couple of plug together wires that seem to want to corrode. Dialectric compound not grease on them puts a stop to that. The thin and easily broken fusible link in the clear plastic tube, seems to always want to be in a place where it wants to get bent. Not sure if they can be bought but I will if I can and keep in the tool box. Oh and the drain plug. Someone put a nylon or some plastic plug in it, not me, and from tightening a bit much it later decided it was going to leak and when I touched it it broke and got a quick and very hot bath.
Atwood was at the Rally and gave me a tap to clean up the threads..after the evening before neighbors help we, actually mostly them, with pocket knife and etc to get the old plug out inuring the threads a bit. So we carry a number of the intended plastic or whatever plugs. Still need to find an extraction tool for broken plug I read about somewhere.
The control board has been brought up here a number of times of needing to be replaced.Suppose an extra one in the tool box would be a good idea.
No rocket science about the water heater. Facing an unknown problem, with no idea of what might be the problem the first time is the problem.
The manual on everything are a problem in lack of information.
All those seminars on equipment on our Mhs at Rallys...well I need to start attending them.
A lot more would if they served hotdogs or something ...hint hint.

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