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Old 09-29-2016, 07:44 PM   #1
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Country Coach Owners Club
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Location: Fort Worth, TX
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LP leak? Refrigerator only works on gas?

I have two maybe related problems I need input on. I have a '99 CC Affinity that I've owned a little over a month. The dealer filled the propane tank 3/4 full and supposedly pressure checked the LP system as part of their dealer prep. When I started the coach tonight, I got a verbal warning that the propane tank was low. The gage was reading empty and my refrigerator had stopped cooling. I have never smelled gas nor has my PL gas detector indicated a leak. I had 10 gallons added to the tank today and we checked all of the external connections for leaks - none found. I had left the line valve for the gas range open. Could the range be the culprit? Is it easy to check the water heater? I'm not sure how to even access it.

Second issue I am having is my refrigerator (Domestic, side by side) only seems to work on gas. I has been working great (before the low gas warning) and is cooling off nicely since added propane today. When I plug in shore power and switch to automatic, the fridge gets warm. Is there something I can check here?

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Old 09-29-2016, 08:12 PM   #2
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Has your fridge been running on gas since you bought the motor home? Anything else on? Hot water tanks burn a fair bit if left on all the time. Was the furnace on, it uses a fair bit. It could be that you used the propane and don't have a leak.

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Old 09-29-2016, 08:24 PM   #3
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The fridge is the only thing I have left on. I used the water heater on a trip but only turned it on when I needed it. Heater runs on diesel (wabasto). Can't imagine the fridge would burn 30 gal in a month.
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Old 09-29-2016, 08:24 PM   #4
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Assuming you have a dual fuel Dometic refrigerator get the model number and look for the manual on line. If you cannot find it post the number and maybe someone can help.

There should be an electric heating element that it switches to when plugged into shore power or the generator is on. Check for missing 120 AC. If you have power to the refrigerator then look for power to he heater. If you have power to the heater then it is bad. IF you have 12 VDC and 120 VAC to the control board and not to the heater then it's probably the control board.
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Old 09-29-2016, 09:17 PM   #5
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There are 2 fuses on the main PC board, one 12V, one 120V. Do you have 120VAC at the receptacle where the frig is plugged in? It is on a breaker in the main panel.
If the pressure-test (manomometer- water column) did not detect a gas leak, go rent a combustible gas "sniffer", trace every line, then check every gas appliance's regulator. BryantRV.com has downloadable owners,installation, and service manuals for most RV appliances.
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gas, leak, refrigerator

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