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06-25-2007, 08:15 AM
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#1
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Member
Join Date: May 2007
Posts: 88
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I'm new to this type of trouble. I noticed last week that the fridge will not run on gas. Actually, it will run for about a minute, then shut off and light the check light. I'm figuring thermocouple at that point.
Then, I noticed that the water heater does the same thing. I didn't even see a thermocouple on the water heater.
I thought wondering about the coincidence, so I tried the stove. No problem, but I light that manually.
Am I barking up the wrong tree?
Thanks!
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06-25-2007, 08:15 AM
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#2
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Member
Join Date: May 2007
Posts: 88
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I'm new to this type of trouble. I noticed last week that the fridge will not run on gas. Actually, it will run for about a minute, then shut off and light the check light. I'm figuring thermocouple at that point.
Then, I noticed that the water heater does the same thing. I didn't even see a thermocouple on the water heater.
I thought wondering about the coincidence, so I tried the stove. No problem, but I light that manually.
Am I barking up the wrong tree?
Thanks!
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06-25-2007, 12:59 PM
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#3
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Member
Monaco Owners Club
Join Date: Aug 2000
Location: Livingston, TX
Posts: 42
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Hi Bucky
It is doubtful that both thermocouplers went bad at the same time.
Did you recently refill your propane tank. The symptoms you are describing are often the result of air in the line.
The solution is to run the stove for a while to get most of the air out, and then repeatedly recycle the HW heater and frig till they get a steady supply of propane. They are usually on a pipe that has been extended from the stove supply. Be careful not to let the propane build up and explode. Good ventilation is a must.
Good Luck
Dave O
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06-25-2007, 02:27 PM
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#4
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Member
Join Date: May 2007
Posts: 88
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Well...Yes we did refill, but we have used both the fridge and water heater since and both worked. The flame on the fridge looks great, and goes out suddenly, like it was turned off. I hate to replace the thermocouple without knowing that it is responsible.
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06-25-2007, 07:35 PM
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#5
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Senior Member
Monaco Owners Club Workhorse Chassis Owner
Join Date: Sep 2005
Location: middleburg,fl
Posts: 572
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Are you at a higher altitude?
__________________
Dale & Betty
04 Lapalma 33'
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06-26-2007, 02:10 AM
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#6
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Member
Join Date: May 2007
Posts: 88
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Same altitude. I checked the fuses and they are OK. Batteries fine.
The flame on the fridge looks good while it lasts. Then it just turns off. How do I diagnose a regulator problem? Is there a way to diagnose a thermocouple?
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06-26-2007, 08:12 AM
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#7
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Moderator Emeritus
Country Coach Owners Club Appalachian Campers Gulf Streamers Club
Join Date: Mar 2000
Location: Chattanooga, Tn.
Posts: 12,060
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You wil need a manometer to check the lp gas regulator. It should be at 11" ater colum with a load on it. First close the main lp tank valve and slowly reopen it and retry the appliances. If you still have a problem check the gas pressure. Also check electrical connections at these appliances if pressure is good. Let us know what you find.
__________________
Mike, RVIA & RVSA Certified Master RV Technician
Amy, Dr. Assistant - Roxie & Mei Ling, four legs each
2000 Gulf Stream Scenic Cruiser 450 hp & 1330# torque
06 Saturn Vue, 06 Chevy Z71 4x4 & 2014 Corvette Z51 M7
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06-26-2007, 08:58 AM
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#8
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Member
Join Date: May 2007
Posts: 88
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I will do that. I may have to involve the local LP dealer to do the checking of pressure, but they are decent. I will let you know.
Thank you.
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06-26-2007, 05:17 PM
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#9
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Member
Join Date: May 2007
Posts: 88
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Here are some more things I found out.
Fridge: Clicks off. Flame looks great, then it just clicks and shuts it off.
Water heater: Lights and looks good for about 8 seconds, then off. Retries several times. The entire time the flame is lit, the electronic ignition is still trying to light it.
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06-27-2007, 08:22 AM
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#10
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Moderator Emeritus
Join Date: Jan 2000
Location: West Palm Beach, FL. USA
Posts: 27,678
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The chances that both appliances have failed at the same time are very remote. I'm betting you have a gas supply problem, most likely an oily residue in the regulator and/or lines. I'd replace the regulator first - they are cheap enough ($20-25) so that diagnosing or attempts to clean them out aren't worth it. Next step is to disconnect the LP lines at both ends and blow them out (don't blow the gunk into the appliances).
Can you run all the stove burners on high simultaneously?
__________________
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
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06-27-2007, 02:29 PM
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#11
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Member
Join Date: May 2007
Posts: 88
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Grrr. I bought the wrong regulator. My local mh dealer had the round one, but did not stock the square one. I guess there is a difference. (there is isn't there?)
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06-27-2007, 02:34 PM
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#12
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Member
Join Date: May 2007
Posts: 88
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Oh, all 4 burners will light and stay lit, and look good.
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06-27-2007, 02:36 PM
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#13
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Member
Join Date: May 2007
Posts: 88
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I didn't answer one question correctly. We are at the same altitude...Illinois. So nothing exciting.
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06-28-2007, 04:27 PM
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#14
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Member
Join Date: May 2007
Posts: 88
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Just replaced the regulator with no change. Helllp! Flames look real nice until they go out.
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