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egh33

Texas

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Posted: 09/24/13 12:48pm Link  |  Quote  |  Print  |  Notify Moderator

Now it's the Refrigerator. I always plug it in to power a day or so before a trip. I noticed that the left side of the fins "right above the top shelf" were not frosting over like the rest of the fins on the right side of the refrigerator. I just thought it was because the coach sits in a Carport and it was a little over 100 degrees outside. So down the road we went. I noticed when we stopped the fins were still dripping water. How ever at night when the weather cools all the fins frost over and every thing cools good. The freezer compartment froze every thing and even made ice in the ice maker.
Then the weather cooled off in the day time and every thing worked good. Today, when I plugged it in just to see if it worked properly nothing will run. Neither fans or compressor is running. Checked power, all lights on the fridge work fine, checked circuit breakers every thing I can think of no luck. Got any ideas?/ It is a Norcold 4 door.





TucsonJim

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Posted: 09/24/13 12:54pm Link  |  Quote  |  Print  |  Notify Moderator

Does it work on LP?


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2oldman

Ephrata WA

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Posted: 09/24/13 12:58pm Link  |  Quote  |  Print  |  Notify Moderator

egh33 wrote:

the left side of the fins "right above the top shelf" were not frosting over like the rest of the fins on the right side of the refrigerator.

I noticed when we stopped the fins were still dripping water.

How ever at night when the weather cools all the fins frost over and every thing cools good.

Today, when I plugged it in just to see if it worked properly nothing will run. Neither fans or compressor is running. Checked power, all lights on the fridge work fine, checked circuit breakers every thing I can think of no luck. Got any ideas?/ It is a Norcold 4 door.
There's not a lot that makes sense to me here.

Refer fins aren't supposed to 'frost over' that fast, at least my Dometic doesn't. And if the fins are dripping water that's not a good sign.

What do you mean 'when I plugged it in'? Are you running on gas the whole time? You don't *have* a compressor in that refer so you're not going to hear anything.

Take off the back panel and see if it's leaking ammonia.

Executive

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Posted: 09/24/13 01:59pm Link  |  Quote  |  Print  |  Notify Moderator

Before doing any testing, turn the fridge OFF, wait 30 seconds and turn it back ON. Set temperature setting to FIVE.

A few things to check:

1. Remove outside cover.
2. Check for 120V power at the plugs. If yes,
3. Check for 12V power at the fridge. (You should see two wires attached to the bottom of the black box. The black wire, may also have a small black wire attached, is your 12V power. The white wire at the same location is ground. If yes,
4. Unplug the thermister. It's clipped onto the third fin at the back. Follow the wire up to the light. You'll see a plug there. Unplug it. The thermister is simply a thermostat. Unplugging it will make your fridge run constantly. After a couple hours, see if the box is cold. If yes, replace the thermister.. If no,
5. Check to see if your cooling fans are working. You will have two 12VDC muffin fans on top of the cooling unit. You should be able to hear them. If not, here's an easy solution to check if they are the problem. With the outside cover removed, unplug the ice maker. Plug a 120VAC fan into that plug and secure it outside the coach with bungee cords with the fan blowing air on the coils. Check the fridge temp after a couple hours. If yes, replace the muffin fans, if no....call a technician.

All the above assumes you're on 120VAC power. Do the above tests and let us know the results.

You can also do a hard reset of the fridge, but only if you determine it's an electrical problem. With the fins moisturing up, I'm guessing your Thermister has failed...see #4 above....Dennis


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egh33

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Posted: 09/24/13 02:36pm Link  |  Quote  |  Print  |  Notify Moderator

It seems like I never give enough info. It is plugged in to 120V. Yes, the flame lights and burns when on propane. But The fins only frost over on one side. If you unplug the MH from the shore power the fridge switches over to gas. When weather cools down at night all the fins frost over. I cannot see the fans but it sounds like there is a fan running at the top of the unit.
The Fridge runs constantly gas or electric. I do have electrical power on the ice maker. Will try the fan bit blowing in on it.
"What I meant when I say I plugged it in. I never plugged into any thing but electricity" I don't know what your asking. Thanks Y'all

* This post was edited 09/24/13 05:09pm by egh33 *

Coyote74

Statesville, NC 28677

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Posted: 09/24/13 02:36pm Link  |  Quote  |  Print  |  Notify Moderator

1200 lrims will drip when they self defrost. What's the temps for freezer and fridge.


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egh33

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Posted: 09/24/13 05:15pm Link  |  Quote  |  Print  |  Notify Moderator

Coyote74 wrote:

1200 lrims will drip when they self defrost. What's the temps for freezer and fridge.

Temperature in the freezer compartment after running for little over 4 hours is 31 degrees
Refrigerator compartment is at 46 degrees.
I tried the fan bit made no difference at all. Now the fan has only been blowing for a little over 2 hours.

dougrainer

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Posted: 09/24/13 07:01pm Link  |  Quote  |  Print  |  Notify Moderator

egh33 wrote:

Coyote74 wrote:

1200 lrims will drip when they self defrost. What's the temps for freezer and fridge.

Temperature in the freezer compartment after running for little over 4 hours is 31 degrees
Refrigerator compartment is at 46 degrees.
I tried the fan bit made no difference at all. Now the fan has only been blowing for a little over 2 hours.


The fans are temp controlled and may not run all the time. It depends on the Heat from the convection air up the rear backside. The freezer will get to below 10 degrees AFTER 24 hours. You cannot determine ANYTHING without the refer running 24 hours. What year model RV do you have? Is this refer in a slide room? 1200 models have a auto defrost that ONLY engages after continuous duty after 48 to 54 hours. If at anytime you turn the refer OFF then ON again the timer restarts. The Auto defrost is just a 2 hour shutdown of the refer to allow any frost/ice build up on the inside fins to melt. Is the check valve installed in the white drain hose on the Backside of the refer next to the burner chimney? If NOT, then the outside air can be pulled up into the refer in transit. If your icemaker made ice that means the freezer reached at least 10 degrees or lower. The icemaker will not eject ice unless the freezer is below 10 degrees. Doug

garry1p

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Posted: 09/24/13 08:27pm Link  |  Quote  |  Print  |  Notify Moderator

On many RV refrigerators the thermistor is on the fins on the right side and is adjusted by sliding up or down on the fin.

If it has been accidentally moved on the fin it will change the temperature setting and make it to cold or never get cold.


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dougrainer

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Posted: 09/24/13 08:52pm Link  |  Quote  |  Print  |  Notify Moderator

garry1p wrote:

On many RV refrigerators the thermistor is on the fins on the right side and is adjusted by sliding up or down on the fin.

If it has been accidentally moved on the fin it will change the temperature setting and make it to cold or never get cold.


This is for NON adjustable tstat refers. On adjustable tstat refers, the temp change by moving the Thermister will only vary about 2 degrees. Doug

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