RV refrigerators fail for predictable reasons, and replacement is straightforward if you plan ahead
An RV refrigerator stops cooling because the cooling unit has failed, not because the fridge itself is broken. Most RV fridges use absorption cooling — a sealed system with no moving parts — and when that system leaks or the heating element burns out, the whole unit must be replaced. You cannot repair the cooling mechanism yourself. Replacement takes a weekend, costs between $800 and $2,500 depending on size and type, and requires you to disconnect propane, electrical, and water lines before the old unit comes out.
The decision to replace comes down to three things: whether you want the same type of fridge your RV came with, whether you want to upgrade to a compressor model (which runs on 12-volt power only), and whether you can do the work yourself or need a technician. Each choice affects cost, installation time, and how your fridge will perform in different climates.
Key Takeaways
- Absorption refrigerators (the factory standard) run on propane or 110-volt power but fail when the sealed cooling unit leaks; replacement is the only option.
- Compressor refrigerators cost more upfront but run only on 12-volt DC power, work better in hot climates, and last longer than absorption models.
- Removing the old fridge requires disconnecting propane at the regulator, unplugging 110-volt and 12-volt lines, and draining water lines; reinstalling takes similar time.
- Installation by an RV technician costs $300 to $600 in labor; doing it yourself saves that cost but requires basic plumbing and electrical knowledge.
- Measure your fridge opening before ordering, because RV fridge dimensions vary and a unit that does not fit wastes money and time.
Absorption versus compressor refrigerators: which type to replace with
Your RV came with an absorption refrigerator because they run on multiple power sources — propane when you are boondocking, 110-volt AC when plugged into shore power, and 12-volt DC when driving. They have no moving parts and are silent. They also fail predictably: the sealed cooling unit develops a leak, the heating element burns out, or the ammonia solution inside crystallizes. Once any of those happens, the fridge stops cooling and cannot be repaired.
A compressor refrigerator works like a household fridge — it has a motor that compresses refrigerant and cycles it through coils. It runs only on 12-volt DC power, which means it draws heavily from your battery when the engine is off and requires a large battery bank or constant charging to run all day. Compressor fridges cost $1,500 to $2,500, compared to $800 to $1,500 for a replacement absorption unit. They cool faster, work better in heat above 90 degrees, and last 10 to 15 years instead of 8 to 12. They are also louder — you hear the compressor cycle on and off.
Most RV owners replace with the same type they had because it matches their existing electrical and propane setup. Switching to a compressor requires upgrading your battery bank and possibly your alternator, which adds $2,000 to $4,000 to the total cost. That upgrade makes sense if you boondock in hot climates or plan to keep the RV for many years; it does not make sense if you stay plugged in most of the time or rarely travel in summer heat.
Measuring your fridge opening and ordering the right size
RV fridges come in standard sizes, but your opening may not match a standard size exactly. Measure the height, width, and depth of the space where your fridge sits — measure from the inside of the cabinet, not the outside. Write down the model number of your current fridge; the manufacturer's spec sheet will tell you the exact opening dimensions it was built for. Many RV owners order a fridge that is half an inch too wide or too tall and discover the problem only when it arrives.
Common sizes are 18 cubic feet (the most common in travel trailers), 21 cubic feet, and 25 cubic feet. Larger RVs and fifth wheels often have 25-cubic-foot units. Smaller trailers and Class B motorhomes use 18-cubic-foot models. If you are replacing with a compressor fridge, the selection is smaller — most compressor units are 12 to 18 cubic feet — so check availability before you commit to that upgrade.
Order from an RV parts supplier like Camping World, Amazon, or a manufacturer direct if you know the exact model. Delivery takes 5 to 14 days. Do not order a fridge and assume it will fit; a mismatch means returning it and waiting for a replacement, which leaves you without refrigeration for weeks.
Disconnecting the old refrigerator safely
Before you touch the fridge, turn off the propane at the regulator outside your RV. Locate the regulator on the propane tank or on the exterior wall near the tank, and turn the valve clockwise until it stops. Wait five minutes for any propane in the line to bleed out. Then turn off the 110-volt breaker for the fridge inside your RV's electrical panel. Unplug the 12-volt power cord from the back of the fridge if it has one.
Open the cabinet doors and look at the water line running to the ice maker or water dispenser. If your fridge has one, locate the shut-off valve under the sink or behind the fridge and turn it clockwise. If there is no valve, you will need to disconnect the line at the fridge and let it drain into a bucket. Take a photo of how the line connects before you disconnect it, so you remember how to reattach it.
The fridge is usually held in place by screws or brackets on the sides. Remove those screws and gently pull the fridge toward you. It will be heavy — 150 to 250 pounds — so have a second person help. Slide it out slowly and set it on a dolly or hand truck. Once it is out, cap the propane line with a brass cap (available at any hardware store for a few dollars) so debris does not enter the line.
Installing the new refrigerator
Slide the new fridge into the opening and check that it sits level and flush with the cabinet on all sides. If it does not fit, stop and measure again before forcing it. Once it is in position, reconnect the propane line by unscrewing the brass cap and attaching the line to the fitting on the back of the fridge. Use two wrenches — one to hold the fitting and one to tighten the nut — so you do not twist the line.
Reconnect the 12-volt power cord to the back of the fridge. Plug the 110-volt cord into the outlet behind the fridge or into the wall outlet if your RV has one. If your fridge has a water line, reconnect it to the fitting on the back and turn the shut-off valve back on. Check for leaks by running water through the dispenser for 30 seconds.
Turn the propane back on at the regulator and turn on the 110-volt breaker. Set the fridge to the coldest setting and let it run for 4 to 6 hours before putting food inside. Absorption fridges take longer to cool than compressor models, so do not expect it to be cold when ready. If it is still not cold after 8 hours, check that the propane is flowing by listening for the heating element to click on, and check that the 110-volt outlet has power by plugging in a lamp.
When to hire a technician instead of doing it yourself
If you are not comfortable working with propane lines, electrical connections, or plumbing, hire an RV technician to do the replacement. The labor cost is $300 to $600, depending on how long the job takes and your location. A technician will also pressure-test the propane line after installation to make sure there are no leaks, which is a safety step many DIY installers skip.
You should hire a technician if your RV has a water line to the fridge and you do not know how to disconnect and reconnect plumbing. A leak in the water line can damage your cabinets and flooring, and the repair cost will exceed what you saved by doing the installation yourself. You should also hire a technician if your RV's electrical system is unfamiliar to you — connecting a 110-volt line incorrectly can damage the fridge or create a fire hazard.
Call your RV dealer or search for "RV technician near me" to find someone in your area. Ask for a quote before you book, and ask whether they charge for a pressure test on the propane line. Some technicians will install a fridge you buy yourself; others require you to buy from them. Confirm which before you order.
Cost breakdown and timeline
| Item | Cost Range | Notes |
|---|---|---|
| Absorption refrigerator (replacement) | $800–$1,500 | Same type as factory unit; fits existing setup |
| Compressor refrigerator | $1,500–$2,500 | Requires 12-volt power only; better in heat |
| Battery and alternator upgrade (if switching to compressor) | $2,000–$4,000 | Necessary to run compressor fridge off-grid |
| Labor (technician installation) | $300–$600 | Includes propane pressure test |
| Shipping (if ordering online) | $100–$300 | Varies by fridge size and distance |
| Miscellaneous (caps, fittings, brackets) | $20–$50 | Usually included with new fridge |
The entire job — from removing the old fridge to running the new one — takes 4 to 8 hours if you do it yourself and have all the tools. If you hire a technician, add 1 to 2 weeks for scheduling. Order your fridge as soon as you know it is failing, because delivery takes 5 to 14 days and you do not want to be without refrigeration longer than necessary.
Most RV owners find that replacing with the same type of fridge they had keeps costs down and avoids electrical upgrades. If you are considering a compressor model, get a quote on the battery and alternator work before you commit, so you understand the full cost of the switch.
Frequently Asked Questions
Can I repair my absorption fridge instead of replacing it?
No. The cooling unit in an absorption fridge is sealed and cannot be opened or repaired. Once it leaks or the heating element fails, the only option is replacement. Some RV repair shops will try to sell you a "recharge" service, but this does not work on absorption fridges and is a waste of money.
What happens if I connect the propane line wrong?
A loose propane connection will leak gas, which you may smell as a rotten-egg odor. A backwards connection will not allow gas to flow and the fridge will not cool on propane. Use two wrenches when tightening the connection — one to hold the fitting and one to turn the nut — so you do not twist the line. If you smell propane after installation, turn off the propane at the regulator and have a technician check the connection.
Do I need to drain the old fridge before removing it?
Yes, if it has a water line. Locate the shut-off valve under the sink or behind the fridge and turn it off. Then disconnect the line at the fridge and let it drain into a bucket. If there is no shut-off valve, you will need to disconnect the line and cap it to prevent water from leaking into your cabinets.
How long does a new RV fridge last?
An absorption fridge lasts 8 to 12 years on average. A compressor fridge lasts 10 to 15 years. Lifespan depends on how often you use it, how well you maintain it, and the climate where you travel. Fridges that run constantly in extreme heat fail faster than those used seasonally in mild climates.
Can I use my RV while the fridge is being replaced?
Yes, but you will not have refrigeration during the replacement. If you hire a technician, the job usually takes one day. If you do it yourself, plan for a full weekend. You can still use your water, electrical, and propane systems while the fridge is out, as long as you turn off the propane at the regulator before disconnecting the fridge line.