Mobile RV repair across the Hill Country and the I-35 corridorMobile RV repair in San Marcos, TX
River Cities RV Service
RV furnace pulled for service on the bench, RV propane system service
Our Services

RV Propane System Service in San Marcos, TX

Propane and Furnace · San Marcos, TX

Propane leak checks and furnace repair where your RV sits

RV propane system repair covers the tank hardware, the regulator, the lines and the appliances that burn propane. In an RV, propane can feed the furnace, the water heater burner, the range and the refrigerator. River Cities RV Service checks the system for leaks and repairs the part at fault. In winter, the common call is RV furnace repair for a furnace that will not light.

We come to your RV at an RV park, a campground, a storage lot or your driveway. You can also bring it to our San Marcos shop. RV propane system repair is one part of our mobile RV repair in San Marcos and across the Hill Country. Call or text (512) 850-7257 to set up a service call.

What We Handle

  • Propane leak checks at the tank valves, the regulator, the lines and each fitting
  • RV furnace repair for a furnace that will not light or blows cold air
  • Sail switch and control board testing on RV furnaces
  • Furnace burners and vents cleared of dirt and wasp nests
  • Regulator repair and replacement
  • Leaking propane hoses and fittings replaced
  • Range burners that will not light
  • Tank hardware repair on the RV's propane tanks

Request a Propane and Furnace Quote

Tell us about your RV, what is wrong and where it is parked. We diagnose the problem and put the repair quote in writing.

Why Won't My RV Furnace Light?

An RV furnace burns propane, but its blower and control board run on 12-volt power. When the thermostat calls for heat, the blower starts first. A sail switch proves there is enough airflow, and then the board sparks the burner. After three failed tries to light, the board locks the furnace out.

Low battery power can keep the furnace from starting, and RV electrical repair covers the battery and the converter. Dust on the blower wheel can slow it so much that the sail switch never closes. Air in the propane line can stop the flame. So can a dirty burner or a wasp nest in the vent.

A blocked vent or a dirty burner can cause soot and carbon monoxide, a furnace maker's service manual warns. If you see black soot at the outside vent, shut the furnace off until it is repaired. The same manual says a furnace left unused for a long time can need extra cleaning. After a hot Hill Country summer, fall is a good time to have it cleaned and checked.

RV Propane Leak Checks and Regulator Repair Around San Marcos

Propane has an added smell, like rotten eggs, so a leak can be noticed. The Railroad Commission of Texas, which oversees propane safety in the state, says to treat any propane smell seriously. Propane vapor is heavier than air, so an RV's propane detector sits near the floor. The detector runs on the RV's 12-volt power, so it will not work when that power is off.

A leak check covers the tank valves, the regulator, the hoses, the lines and each appliance connection. A furnace maker's manual calls for a pressure drop test, plus a leak test solution on each connection. A failing regulator or a kinked line can make the pressure swing, and the furnace may lock out. We repair or replace whatever part fails the check.

On a fuel stop along I-35 or I-10, shut off the propane appliances first, a furnace maker's manual says. An RV maker's owner guide also says to check the carbon monoxide alarm before every trip.

Propane Appliances and Tank Hardware

If the range lights but another propane appliance will not, the fault likely sits at that appliance or its line. We repair the range burners and the burners on the other propane appliances.

A water heater with no hot water is also part of RV water heater repair. A refrigerator that cools on electric but not on propane is part of RV refrigerator repair.

We repair the hardware on the tanks, and a propane supplier fills them. The state's propane safety guide says not to use a cylinder with dents, bulges, leaks or heavy rust.

RV furnace blower wheel during a fan replacement, RV propane system service RV furnace burn chamber packed with a mud dauber nest, RV propane system service

Ready to get started?

Call or text for a written quote. We work about 50 miles around San Marcos across the Hill Country and the I-35 corridor.

(512) 850-7257
How We Work

How a Job With River Cities RV Service Runs

From the first call or text to the finished work, here is how it goes.

1

Call or Text

Call or text (512) 850-7257. Tell us what the RV is doing and where it is parked.

2

The Service Call

We come to the RV and find the cause of the problem. The service call covers the diagnosis and the trip. If you bring the RV to our shop, the diagnosis happens there.

3

The Written Quote

After the diagnosis, we put the quote for the repair in writing. The repair goes on the schedule once you say yes.

4

Parts When Needed

When the repair needs parts, we order them. Once the parts arrive, we set a time to make the repair.

5

The Repair

We make the repair where the RV sits, or at our shop if you brought it in. On RV warranty and insurance repairs, the work starts once the claim is approved.

FAQ

Propane and Furnace Questions, Answered

Common questions about propane and furnace around San Marcos and the Hill Country. If yours is not here, call or text and ask.

Call (512) 850-7257

What should I do if I smell propane in my RV?
Put out any flame and get everyone out without touching a switch or the thermostat. Close the valve on the propane tank, then call your propane supplier or the fire department from a cell phone. Stay out and leave the propane off until a technician repairs the leak, the Railroad Commission of Texas advises. Once it is safe, call or text us at (512) 850-7257.
Why does my RV furnace blow cold air?
Cold air means the blower is running but the burner is not lit. On some furnaces, the blower keeps going after the board locks out from failed tries to light. A blocked return air vent can also overheat the furnace, and a limit switch then shuts off the gas. One furnace maker's manual says to reset it by turning the thermostat off for 10 seconds, then on.
How much does RV furnace repair cost?
The price depends on the part that failed and how hard the furnace is to reach. The service call covers the diagnosis and the trip within 50 miles of San Marcos. After the diagnosis, we put the quote for the repair in writing. If the repair needs a part, we order it.
How often should my RV furnace and propane system be checked?
Furnace makers' manuals call for a yearly check by a qualified technician. We fold the propane checks into a yearly RV maintenance visit, or check the system on its own.
Is my RV propane system safe after a flood?
Keep the propane off until the system is checked. The Railroad Commission of Texas says a gas control that has been under water must be replaced. Its guide also says to call a technician if the tank regulator or an appliance was in the water. One furnace maker's manual says not to use the furnace if any part was under water.
Can you repair my RV furnace at the campground?
Yes. We come to RV parks, campgrounds, storage lots and driveways within about 50 miles of San Marcos. That range takes in towns like New Braunfels, Kyle, Canyon Lake and Lockhart. You can also bring the RV to our San Marcos shop.
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Why Choose River Cities RV Service

Mobile RV Repair Around San Marcos

We Come to the RV

The service call comes to the RV, within about 50 miles of San Marcos. That covers the I-35 corridor and the Texas Hill Country around it.

A Shop in San Marcos

If you would rather bring the RV to us, our shop is in San Marcos. Call or text first to set a time.

The Quote in Writing

The service call covers the diagnosis and the trip. Then the repair quote comes to you in writing.

Google Reviews

Rated 5.0 on Google Around San Marcos and the Hill Country

Real reviews of our RV repair work, 34 reviews on Google.

Read All Reviews

Josh replaced the a/c and heater control board in my travel trailer he did an awesome job I highly recommend him

Dustin Wied8 months ago · Google review

We discovered just 4 days before our Thanksgiving trip that our RV slide-out wasn’t working. We contacted Josh, and he came out the very same day to diagnose the issue. He quickly ordered the necessary parts and managed to get everything repaired in time for our trip. Josh was professional, efficient, and highly communicative throughout the entire process, keeping us informed every step of the way. His pricing is very reasonable, and we truly appreciate the extra effort he put in to ensure we were able to leave on time. Highly recommend his RV repair services!

Kelly Erba year ago · Google review

Josh and his team are amazing. He replaced my roof on my wildcat 5th wheel. And once it rained he returned twice to assess any leaks and concerns. He’s my repair guy now! Thank you Josh!!!!

Guides and Resources

Propane and Furnace Guides

Request a Quote

Get In Touch With River Cities RV Service

Tell us what the RV is doing and where it sits. Call or text (512) 850-7257 or use the form, and we will get back to you.

Request a Quote

Tell us about your RV, what is wrong and where it is parked. We diagnose the problem and put the repair quote in writing.

Call (512) 850-7257