RV Refrigerator Stop Working? Tips For Repairing vs Replacing It

rv-refrigerator-repair.jpg The most important appliance in your RV is the refrigerator.

When you gave up tent camping, putting the ice coolers away in the garage for good was a moment to enjoy.

But what if the refrigerator in your RV seems to have lost its cool?  What are your options?

RV refrigerators can fail for a number of reasons. See when to repair versus when to replace your RV refrigerator…

 

How RV Refrigerators Work

There are 2 brands of refrigerators commonly found in RVs:

Both operate under the same principles.

RV refrigerators operate by heating a sealed cooling element either with a gas flame, or an electric heating element.

The cooling unit amounts to a series of tubes filled with an ammonia-based liquid.

As heat is applied, the fluid circulates through the cooling unit drawing the heat out of the refrigerator.

Here are the repair manuals for both types of RV refrigerator:


Troubleshooting An RV Refrigerator

When an RV refrigerator starts failing (not cooling as well as it should), it means the fluid is no longer circulating properly through the cooling unit.

The nice thing about RV refrigerators is there are no moving parts.  There are no pumps to wear out, and no compressors either. All the work is done simply by heating liquid — like in your coffee pot.  When it boils, it perks the coffee.  When the ammonia is heated, it circulates.

If the cooling unit develops a leak, you will smell ammonia in a big way.  This isn’t a very common occurrence, but if it does happen, you will immediately know where the problem is.


When RV Refrigerators Aren’t Used

More often, the problem with an RV refrigerator is time combined with lack of use.

As RV refrigerators age, the ammonia liquid can create sediment that settles to the bottom of the cooling unit.  This sediment will hinder the ability of  the ammonia to circulate properly through the cooling unit.  As the sediment builds up, the refrigerator will cool less and less.

A refrigerator that is used once or twice a year over a period of 5 or 6 years is much more likely to plug up than one that is in continual operation.  Fluid movement keeps any sediment suspended in the fluid, which ultimately prevents any accumulation from occurring.

Now we know why it doesn’t work. What can be done about it?


 

Repairing vs Replacing A Non-Working RV Refrigerator

It has been said that if you remove the refrigerator from the RV and turn it upside down for a period of time, it may start working again.  I’ve never personally used that method, but the theory behind it is only marginally acceptable.

Once sediment exists, you may dislodge it for a period of time, but as soon as the refrigerator sits again for a period of time it will again settle and plug up the tubes.

Rebuilt cooling units can be purchased — in effect, rebuilding your refrigerator.  It will again cool as good as a new refrigerator.  But here is where the problem comes in…

Replacement cooling units are expensive, and combined with the labor required to remove a bad cooling unit and install a new one, the cost of the project will be at or above the cost of buying a complete new refrigerator.

Many large refrigerators can cost well over $2,000 new.  With labor charges at about $100 an hour, combined with the $1,400 or so the replacement parts would cost, it still makes better sense to just buy a new refrigerator.

A new refrigerator can be installed in about an hour.  The amount of time required to remove an old refrigerator, disassemble the cooling unit, reassemble it with a new cooling unit, then reinstall the refrigerator can take a full day’s work.  That can be pretty pricey at $100 an hour!

This is one time when an RV refrigerator that is working a little bit may actually be worse than one that is not working at all.


Other RV Refrigerator Repair Issues

There are a number of reasons that a refrigerator will not function at all.  Typically, those problems can be repaired at a reasonable cost.

For example, if the pilot light won’t stay lit, you may have a bad thermocouple which controls gas flow.  If your electronic ignition fails to light, you may have a faulty control board.  If your refrigerator works on gas, but won’t work on electric, you may have a burned out heating element.

The point is, don’t assume your RV refrigerator is a hopeless cause. Instead, have a qualified technician check it out.

Just know, if the problem lies in the cooling unit, you may be better off buying a new RV refrigerator instead of repairing your old one. Honest technicians will make you aware of your options before they get too far along.  At least now you have an idea of what takes place behind the cold 6-pack in your refrigerator!

Curtis Carper

I’ve been involved in RVing for over 40 yrs -- including camping, building, repairing, and even selling RVs. I’ve owned, used, and repaired almost every class and style of RV ever made. I do all of my own repair work. My other interests include cooking at home, living with an aging dog, and dealing with diabetic issues. If you can combine a grease monkey with a computer geek, throw in a touch of information nut and organization freak, combined with a little bit of storyteller, you've got a good idea of who I am.

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