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larry barnhart

wenatchee. wa usa

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Posted: 07/04/21 08:32pm Link  |  Quote  |  Print  |  Notify Moderator

More information and thanks for all the comments. We are home and the fifth is sitting headed north but the scrubs on the drivers side are higher than the fifh so shade on that side until the sun changes to expose the back and soon the shade from the tall scrubs has that side in the shade, Fridge in the slide and has cooling fans that scream but didn't seem to hear them during the time the fridge was warm and no food in the fridge but frozen food in the freezer. Freezer is 10 degrees and the fridge is 40 at this time of 7[emoticon]m Thermistor is not attached to a fin and doesn't show as what we have had in the past rv's. Trailer is sitting level. the 30 amp power has gone out before the issue but have a 20 amp heavy cord powering the trailer and just the fridge is running on that. I feel it might be ok but we will head south again this September. chevman


chevman
2019 rockwood 34 ft fifth wheel
2005 3500 2wd duramax CC dually
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dougrainer

Carrolton, Texas

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Posted: 07/05/21 09:36am Link  |  Quote  |  Print  |  Notify Moderator

larry barnhart wrote:

More information and thanks for all the comments. We are home and the fifth is sitting headed north but the scrubs on the drivers side are higher than the fifh so shade on that side until the sun changes to expose the back and soon the shade from the tall scrubs has that side in the shade, Fridge in the slide and has cooling fans that scream but didn't seem to hear them during the time the fridge was warm and no food in the fridge but frozen food in the freezer. Freezer is 10 degrees and the fridge is 40 at this time of 7[emoticon]m Thermistor is not attached to a fin and doesn't show as what we have had in the past rv's. Trailer is sitting level. the 30 amp power has gone out before the issue but have a 20 amp heavy cord powering the trailer and just the fridge is running on that. I feel it might be ok but we will head south again this September. chevman


1. Fans should be running
2. I CANNOT STATE THIS AS MORE IMPORTANT THAN ANYTHING ELSE---When a refer is in a slide room, it is best to have a fan at the top access door blowing OUT. Regardless of any fans that are lower blowing up. So, if you remove the upper access door and there is NO fan visible blowing out, Install one. You will be amazed at the better cooling you get.
3. Also as important as the fan in a slide----Look at the upper condensor fins when you remove the upper access door. IF there is any gap between the edge of the fins and the interior outside wall, you need to make a simple wood panel to force ALL the convection air THRU those fins. If no block panel, you don't get the benefit of adequate air flow thru those fins. The air flow REMOVES the heat to allow the CU to operate.
4. Do these things and you will have a awesome refer. Also reconnect the Thermister on the fins. Doug

PS your temps show that the refer is OK and do my modifications and you will see the lower probably get to 32 degrees.

dougrainer

Carrolton, Texas

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Posted: 07/05/21 09:38am Link  |  Quote  |  Print  |  Notify Moderator

Last, the ARP device is something that all RVer's need to install. It stops harmful off level operation automatically so you do not have to manually monitor it. Doug

https://www.arprv.com/products.php

larry barnhart

wenatchee. wa usa

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Posted: 07/05/21 02:18pm Link  |  Quote  |  Print  |  Notify Moderator

thanks for the new information Doug. going out to look at the top.

chevman

larry barnhart

wenatchee. wa usa

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Posted: 07/05/21 03:23pm Link  |  Quote  |  Print  |  Notify Moderator

Doug it looks like what you said is the way we have. 4 cooling fans below the fins and the air is directed to blow up the fins and then out the top . the fridge is 39 degrees and is empty the freezer is 13 degrees with some frozen food in the freezer. We have cooler temperature's now under 100. Chevman

dougrainer

Carrolton, Texas

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Posted: 07/06/21 07:18am Link  |  Quote  |  Print  |  Notify Moderator

larry barnhart wrote:

Doug it looks like what you said is the way we have. 4 cooling fans below the fins and the air is directed to blow up the fins and then out the top . the fridge is 39 degrees and is empty the freezer is 13 degrees with some frozen food in the freezer. We have cooler temperature's now under 100. Chevman


4 cooling fans??????? I have never seen more than 2. Is it possible a previous owner installed extra fans? Doug

larry barnhart

wenatchee. wa usa

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Posted: 07/06/21 07:43am Link  |  Quote  |  Print  |  Notify Moderator

The fridge is a 12 ft double door and this fifth was used on one trip of 1000 miles. I don't think he did anything. 4 fans are noisy. chevman

otrfun

On The Road

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Posted: 07/06/21 09:51am Link  |  Quote  |  Print  |  Notify Moderator

For those that want to track how well their frig is working (realtime data plus accumulated past data), I'd highly recommend checking out one of these Govee Bluetooth temp/humidity sensors for use inside your fridge. It gives you the realtime temp and humidity, plus it stores all your temp/humidity readings for the last year or so. All the historical data is very easy to access using the Govee BT app. Easy to track any long-term cooling trends that may develop. Also very easy to track how your fridge handles cool-downs/recoveries under different ambient conditions. Good bluetooth range. Great price (~$10), too.

x1 with what Doug Rainer suggested: install an ARP Fridge Defender. $150-$200 is cheap insurance to automatically protect your $1500-$2000 fridge from overtemp boiler conditions. One of the big side benefits of using the ARP is the ability to view flue temps realtime (temps typically hover around 180-190c; ARP shuts down fridge at 217c). Easy to tell how well your fridge is working (on 120vac, propane, and 12vdc) based on the flue temps. Easy to see when it's time to clean the propane jet/orifice (flue temps drop on propane). Also allows action to be taken before the boiler gets too hot and the ARP is forced to shut down the fridge (temps spike upwards within a few min.).

Gjac

Milford, CT

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Posted: 07/11/21 11:32am Link  |  Quote  |  Print  |  Notify Moderator

Would a cheaper solution to ARP be to install a Bimetal disc thermostat that shuts off at 200F and closes at 180F? These limit switches are used as a safety device in gas fired furnaces and cost less than $5.00. I am sure the ARP does more, but just wondering what others think.

dougrainer

Carrolton, Texas

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Posted: 07/11/21 12:44pm Link  |  Quote  |  Print  |  Notify Moderator

Gjac wrote:

Would a cheaper solution to ARP be to install a Bimetal disc thermostat that shuts off at 200F and closes at 180F? These limit switches are used as a safety device in gas fired furnaces and cost less than $5.00. I am sure the ARP does more, but just wondering what others think.


The average flue temp is around 275 to 350 degrees. Doug

The Norcold recall trips at 700 degrees.

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