Repair and maintain your RV's propane fridge
Troubleshooting and repairing propane-electric RV fridge
Can you repair a gas absorption or propane-electric RV refrigerator? If you can, where can you do so? I recently visited a shop that does this type of repair all day long and was surprised what I learned and saw.
Some issues with these tried-and-true refrigerators are also easy to diagnose and remedy without even having to visit a repair shop.
In this guide, we’ll cover common RV refrigerator problems, basic troubleshooting tips, and when to call in a professional.
RV refrigerator technologies
While RV refrigerators used to be what are called gas absorption models, almost no RV companies are using these today. Almost all new RVs are now coming with compressor-based refrigerators that utilize the RV’s 12 volt system. Why?
Bottom line - it’s cheaper for the RV companies. The units themselves aren’t quite as expensive but they also don't require venting to the outside of the RV and they don’t require a gas line and all the associated safety features that a propane-electric fridge might need.
How a gas absorption RV fridge works.
So while it saves money in production you’re also likely to spend more on solar and battery systems to keep them running. However, over time, if you choose a lithium battery you really won’t have any ongoing costs to operate a 12 volt compressor fridge.
Also, compressor-based fridges operate more consistently over a wider range of temperatures than do gas absorption models. So, like with so many things, there are benefits and challenges on either side of the equation.
How gas absorption RV fridges work
Unlike the fridge in your home, propane-electric RV refrigerators run on absorption technology rather than a compressor. They use a combination of heat, ammonia, and water to create a cooling effect. This system allows them to operate on propane, 12-volt DC, or 120-volt AC power, making them flexible for both on-the-road and campground living.
Essentially the gas absorption fridge heats an ammonia mixture (that’s where the propane comes in but it can also heat with electricity) which causes it to rise. It then expands and cools and goes back through the loop again.
Understanding this difference is important when diagnosing problems—what works for a household refrigerator may not apply to your RV fridge.
Common RV Refrigerator Problems
Not Cooling Properly
Blocked ventilation or dirty coils.
RV not level (absorption fridges need to be level to function).
Faulty thermostat.
Fridge Won’t Turn On
Power supply issue (blown fuse, tripped breaker, bad outlet).
Propane not flowing properly.
Strange Odors or Ammonia Smell
Could indicate a leak in the cooling unit—this usually requires professional repair.
Excess Frost or Ice Buildup
Door seals not closing properly.
Humidity entering fridge too often.
Clicking or Popping Sounds
Often normal ignition sounds, but if it persists, the igniter or burner could be dirty.
DIY RV Refrigerator Troubleshooting
If your RV fridge isn’t working, try these simple checks before calling a repair shop:
Check the Power Source – Make sure your RV is plugged in, breakers are on, and fuses aren’t blown.
Inspect the Propane Line – Ensure the propane tank is open and gas is flowing. One of the best ways to get the propane flowing after just turning it on is by lighting a stove burner. This usually does the trick.
Level Your RV – Park on a level surface. Gas absorption refrigerators like to be within 3° of level.
Clean the Burner and Flue – Dust, spider webs, or soot buildup can block proper operation.
Improve Airflow – Add a small fridge fan or check that ventilation isn’t obstructed.
When to Call a Professional
Some repairs are best left to certified RV technicians. Contact a professional if:
You smell ammonia or suspect a coolant leak.
The fridge isn’t cooling despite proper leveling and power.
The cooling unit is corroded or cracked.
You’re uncomfortable working with propane or electricity.
Attempting complex repairs without experience can be dangerous, so don’t hesitate to get expert help.
Tips for Preventing RV Refrigerator Issues
Defrost regularly to prevent ice buildup.
Keep your fridge at least half full for more stable temperatures.
Clean exterior vents and check for insect nests.
Service your RV refrigerator annually to keep it in top shape.
Repairing a propane-electric RV fridge
I recently stumbled on National RV refrigeration in Shipshewana, Indiana. This is a company staffed by Amish folks who actually take apart and rebuild RV refrigerators. If you’ve discovered a leak or your fridge is kaput, these guys do a great job of getting propane-electric fridges back out on the road.
Interestingly if you have an issue with your propane-electric fridge they can simply remove the cooling system and replace it. They do several of these per day so they’re good and efficient at doing so.
They also can rebuild these systems. Owner Glen Miller said one of the advantage of these gas absorption fridges is that they can be rebuilt. If a 12 volt fridge goes out, you replace the entire unit.
They also have new and used propane-electric fridges in stock. In face they bought-out several RV manufacturers’ supplies of gas absorption fridges when they were transitioning to 12 volt models so they have plenty of new fridges as well as rebuilt fridges in stock. Plenty!
Final Thoughts
Your RV refrigerator is a critical part of your travel lifestyle, and keeping it in good working order ensures you can enjoy fresh food and cold drinks wherever the road takes you. By understanding how these fridges work, troubleshooting common problems, and knowing when to call in a pro, you’ll save time, money, and frustration on your RV adventures.
