Why Your Tankless RV Water Heater Needs Annual Service
Many RVers don’t realize that tankless RV water heaters require annual flushing.
Learn why servicing brands like Truma, Girard, Fogatti & RecPro is essential.
Annual Flush for Tankless RV Water Heaters: What Every RVer Must Know
Many RV owners assume tankless RV water heaters don’t require maintenance because they don’t have a storage tank. Unfortunately, that’s one of the biggest misconceptions in RV ownership.
Even without a tank, mineral buildup, grime, and sediment still accumulate inside the heat exchanger and internal components. If not flushed annually, performance declines—and failure becomes more likely.
5 Essential Topics
RVers Should Know About Tankless RV Water Heaters
Tankless RV Water Heaters Still Require Annual Flushing
Even without a tank, hard water minerals build up inside:
Heat exchangers
Internal coils
Flow sensors
Burner components
Over time, scale buildup reduces efficiency, restricts water flow, and can cause ignition failures or temperature fluctuation issues.
Water Quality (Especially in FL) Makes Flushing Even More Important
If you're traveling through or staying in Florida:
Hard water accelerates mineral buildup
Salt air increases corrosion risk
High humidity impacts electronics
Annual flushing becomes even more critical, especially if staying in the Florida Keys.
Warning Signs Your Tankless RV Water Heater Needs Service
Watch for these symptoms:
Inconsistent water temperature
Reduced water pressure
Error codes on the control panel
Burner cycling on and off
Delayed hot water ignition
Ignoring these early signs can lead to system shutdown—especially during peak travel season.
Brands We Service (And One We Don’t)
At Easy Breezy Mobile RV Repair, we service:
Truma AquaGo
RecPro Tankless RV Water Heater
Fogatti Tankless RV Water Heater
Girard Tankless Water Heater
Vevor Tankless RV Heater
Camplux Tankless Water Heater
We DO NOT service AquaHot hydronic heating systems, as those require a certified technician. If you own an AquaHot system, it’s best to have it serviced before visiting the Florida Keys.
Limited Repair Options in the Upper Florida Keys
The Florida Keys have:
One small RV dealer
Limited parts inventory
Long shipping times
Few specialized technicians
If your tankless water heater fails while on vacation, replacement parts may not be immediately available.
Preventive annual flushing helps avoid costly downtime.
Essential Tankless RV Water Heater Maintenance Tips
Follow these preventative steps:
Schedule an annual descaling flush.
Install a water pressure regulator.
Use a sediment filter when hooked to campground water.
Check venting for salt-air corrosion.
Keep manufacturer manuals accessible.
FAQ: Tankless RV Water Heater Service
Q: Do tankless RV water heaters really need annual maintenance?
Yes. Even without a storage tank, mineral scale builds up inside the system and must be flushed annually to maintain performance.
Q: What happens if I don’t flush my tankless RV heater?
Scale buildup can cause overheating, ignition failure, error codes, and shortened system lifespan.
Q: Can I flush my tankless RV water heater myself?
Some manufacturers provide DIY procedures, but improper descaling can damage internal components. Professional service ensures proper flushing and inspection.
Q: Why should I service it before coming to the Florida Keys?
Repair options and parts availability are limited in the Keys. Servicing beforehand prevents vacation disruption.
Q: Do you service AquaHot systems?
No. AquaHot systems require a certified technician. We recommend servicing those units before traveling south.
Recommended Manufacturer Resources
For additional research, visit:
Truma AquaGo:https://www.truma.net
Girard Products:https://www.girardrv.com
RecPro RV:https://www.recpro.com
Fogatti RV:https://www.fogatti.com
Camplux:https://www.camplux.com
Vevor:https://www.vevor.com
(Always refer to your manufacturer’s manual for exact maintenance intervals.)
Conclusion: Don’t Skip the Annual Flush
Tankless RV water heaters are efficient and compact—but they are not maintenance-free.
Annual flushing:
Protects internal components
Maintains hot water performance
Extends unit lifespan
Prevents mid-vacation failures
If you're visiting the Florida Keys, handle your service before arrival—or schedule with Easy Breezy Mobile RV Repair if you're already in the Upper Keys and own one of the brands we service.