RV Water Heater Repair in Sebastian
Gas, electric, and combo water heater diagnostics and repair. Anode rod replacement, burner tube cleaning, and full unit replacement. Mobile service across Indian River County.
TL;DR
- Gas, electric, and combo RV water heater diagnostics and repair
- Anode rod replacement, burner tube cleaning, and thermocouple service
- Pricing from $125 to $600 depending on the repair or replacement
- Suburban and Atwood/Dometic units serviced on all RV types
- Same-day mobile service in Sebastian and surrounding Indian River County cities
Hot Water When You Need It
Your RV water heater is one of those things you don't think about until your morning shower turns cold. Most RV water heaters hold 6 to 10 gallons, which is enough for one decent shower or a round of dishes, but only if the unit is heating properly. When it fails, you're stuck with cold water until someone fixes it.
Here in Sebastian and across Indian River County, water heaters face two unique challenges. Florida's hard water is loaded with calcium and magnesium that build up inside the tank as scale, reducing efficiency and accelerating corrosion. And the warm climate means mud daubers, wasps, and spiders love building nests inside the burner tube during the months you're not using the gas side. Both problems are preventable with regular maintenance.
Gas vs Electric vs Combo Units
Most RV water heaters from Suburban and Atwood (now Dometic) offer gas-only, electric-only, or gas/electric combo operation. Gas-only units heat faster, typically reaching full temperature in 20 to 30 minutes from cold. They work anywhere you have propane, which makes them ideal for boondocking. The trade-off is more maintenance: the burner tube, thermocouple, and gas valve all need periodic attention.
Electric-only units are simpler and virtually maintenance-free. The heating element sits inside the tank and works like a residential water heater. The downside is speed. Electric heating takes 45 to 60 minutes from cold. You also need shore power or a generator running to use it.
Combo units give you the best of both worlds. You can run gas only, electric only, or both simultaneously. Running both cuts recovery time to about 15 minutes. If you're in a campground with shore power, you can run electric to save propane. If you're dry camping, you switch to gas. Most RVs built after 2010 come with combo units.
Anode Rod: The $20 Part That Saves Your Tank
If your water heater has a Suburban brand unit, it came with an anode rod. This is a magnesium or aluminum rod that screws into the drain plug opening. It's designed to corrode so your tank doesn't. In Florida's mineral-heavy water, anode rods dissolve faster than the national average. We recommend replacing yours every 12 months here in Indian River County.
A new anode rod costs $15 to $25 for the part. We charge $125 to install it, which includes flushing the tank to remove sediment and scale buildup. Skip this maintenance, and the tank itself starts corroding within 2 to 3 years. A new tank costs $400 to $600. The math is simple.
Common Water Heater Failures
The top five issues we see in Sebastian are clogged burner tubes from insect nests, failed thermocouples that shut off the gas valve, burned-out electric heating elements, leaking drain plugs or anode rod fittings, and cracked tanks from freeze damage (yes, it can freeze in Florida during January cold snaps). Burner tube cleaning takes about 30 minutes. Thermocouple replacement runs $125 to $175. Element replacement costs $150 to $200.
If your water heater tank is leaking from the shell itself, repair isn't an option. That means the tank has corroded through, and a full replacement is the only fix. A new 6-gallon Suburban DSI unit runs $400 to $500 installed. A 10-gallon unit runs $500 to $600.
What Water Heater Repair Costs
Anode rod replacement with tank flush runs $125. Burner tube cleaning is $125 to $150. Thermocouple replacement costs $125 to $175. Electric element replacement runs $150 to $200. Gas valve replacement is $200 to $300. Full water heater replacement costs $400 to $600 installed. Patrick Lee carries the most common parts on the truck, so about 80 percent of water heater repairs get completed in a single visit.
Water Heater Repair FAQ
On gas units, check that your propane is on and the bypass valve is in the correct position. The most common causes are a failed thermocouple that shuts off the gas valve, a clogged burner tube from insect nests (very common in Florida), or a bad gas valve. On electric units, it's usually a burned-out heating element or a tripped high-limit switch. On combo units, either side can fail independently. We can diagnose the exact cause on site in about 20 minutes.
In Florida, replace your anode rod every 12 months. The standard recommendation is every 1 to 2 years, but Florida's hard water and high mineral content eat through anode rods faster. If your rod is more than 50 percent depleted, the tank itself starts corroding. A new anode rod costs $15 to $25 for the part and takes about 15 minutes to install. It's the cheapest way to extend the life of your water heater by years.
Gas water heaters heat water faster, typically reaching full temperature in 20 to 30 minutes. They work anywhere without shore power. The downsides are more maintenance, the burner tube and thermocouple need periodic attention, and they rely on propane. Electric water heaters are virtually maintenance-free and quieter, but they take 45 to 60 minutes to heat and require shore power or a generator. Combo units give you both options and can run both simultaneously for the fastest recovery time.
With proper maintenance, a Suburban or Atwood RV water heater lasts 10 to 15 years. In Florida, that drops to 8 to 12 years because hard water accelerates tank corrosion. The anode rod is the key to longevity. If you replace it annually, you protect the tank lining. If you skip anode rod maintenance, the tank itself corrodes and starts leaking within 4 to 6 years. By then, replacement is the only option.
Common repairs run $125 to $300. That covers thermocouple replacement at $125 to $175, heating element replacement at $150 to $200, gas valve replacement at $200 to $300, and burner tube cleaning at $125 to $150. A full water heater replacement costs $400 to $600 installed depending on the model and whether you're switching from a standard to a tankless unit. If your repair quote exceeds 60 percent of replacement cost, we'll recommend the new unit.
Yes, significantly. Indian River County water has high mineral content, particularly calcium and magnesium. These minerals form scale deposits on heating elements and the inside of the tank. Scale buildup reduces heating efficiency and creates hot spots that accelerate corrosion. We recommend flushing your water heater tank every 3 months and using an inline water filter at the campground connection to reduce mineral intake.