RV water heater guides
36 field guides for rv water heaters. Start with the symptom, then follow the safe checks before you reach for a part.
RV Water Heater Fault Light On: What It Means
A lit fault or lockout light on an RV water heater switch usually means the gas burner failed to light. What causes it and how to reset it.
Continue reading →Leaks and floodingRV Water Heater Leaking From the Bottom
A leak at the bottom of an RV water heater tank: drain plug, anode rod, or a corroded tank. How Suburban and Atwood tanks differ and when to replace.
Continue reading →Leaks and floodingRV Water Heater Leaking Outside the Coach
Water under the outside access door of an RV water heater: relief valve discharge, drain plug or anode, fittings, or the tank. How to find the source.
Continue reading →Pilot and ignition problemsRV Water Heater Lights Then Goes Out: Causes
An RV gas water heater that lights, then shuts off, is losing its flame signal or fuel. Causes include propane supply, wind, altitude, and the ECO.
Continue reading →No hot waterRV Water Heater Not Getting Hot Enough
Lukewarm water from an RV tank heater: bypass valves, one heat source not working, a fixed thermostat, low shore power, or small tank capacity.
Continue reading →RV water heater troubleshootingRV Water Heater Not Working on Electric
Why an RV tank water heater heats on propane but not on 120-volt electric, what owners can check safely, and what a technician tests next.
Continue reading →Leaks and floodingRV Water Heater Pressure Relief Valve Dripping
Why an RV water heater relief valve drips while heating, what Suburban calls normal, how to restore the air pocket, and when the valve needs replacing.
Continue reading →Gas, burning, and sulfur smellsRV Water Heater Smells Like Rotten Eggs
Rotten-egg smell from RV hot water usually comes from sulfur in the water reacting in the tank. A smell in the air may be propane. How to tell and fix it.
Continue reading →RV water heater troubleshootingTurned On a Water Heater Without Water?
Powering an empty electric water heater usually burns out the element within moments. What to do now, and how gas, tankless and RV heaters differ.
Continue reading →TroubleshootingWater Heater Anode Rod: What It Does and When to Check It
What a water heater anode rod does, magnesium vs aluminum vs powered, how often manufacturers say to inspect it, signs it's used up, and who replaces it.
Continue reading →RV water heater troubleshootingWater Heater Switch Not Working
When a water heater switch does nothing, the cause is usually a tripped breaker, a disconnect or fused pullout, or on an RV a 12- or 120-volt supply fault.
Continue reading →TroubleshootingWater Heater Thermal Fuse: What It Means
A thermal fuse is a one-time overheat safety. Which water heaters use one, how it differs from a resettable switch, and why it must never be bypassed.
Continue reading →AldeAlde RV Heater Problems: No Heat, Faults and Glycol
Alde Compact 3020 RV problems: no heat or hot water, panel fault messages, low battery, air in the glycol, a dripping safety valve and frost damage.
Continue reading →Aqua-HotAqua-Hot RV Hydronic Heater Problems
Why an Aqua-Hot system in a motorhome stops making hot water or heat: power, burner lockout, electric mode, boiler fluid, and the domestic water path.
Continue reading →Atwood / DometicAtwood RV Water Heater Clicking But Not Lighting
An Atwood RV water heater that clicks but won't light is sparking without flame. Causes include propane supply, the igniter, nests and the gas valve.
Continue reading →Atwood / DometicAtwood RV Water Heater Element: When to Replace It
How to tell whether an Atwood or Dometic RV water heater's electric element has failed, what else stops electric heating, and what the repair involves.
Continue reading →Atwood / DometicAtwood RV Water Heater Troubleshooting
Troubleshoot an Atwood (Dometic) RV water heater by splitting gas from electric, then checking water, bypass valves, propane, 12-volt and shore power.
Continue reading →Atwood / DometicAtwood Water Heater Not Working on Electric
Why an Atwood (Dometic) RV water heater heats on propane but not on 120-volt electric, what you can check, and what an RV technician tests.
Continue reading →Atwood / DometicAtwood Water Heater Reset Button: Which Reset Applies
Atwood (Dometic) RV heaters have a manual-reset electric limit, a switch-cycle gas lockout reset, and fuses that aren't resets. Which applies when.
Continue reading →Atwood / DometicAtwood Water Heater Won't Stay Lit on Propane
An Atwood (Dometic) RV heater that lights and goes out is usually losing propane, flame contact or 12-volt power. What you can check and what a tech tests.
Continue reading →Atwood / DometicDometic (Atwood) Water Heater Thermal Fuse Blown
The thermal cutoff on Atwood/Dometic RV heaters is a one-time fuse that opens when burner heat escapes. Why it blows and why it's never bypassed.
Continue reading →FogattiFogatti Tankless Water Heater Troubleshooting
A Fogatti tankless that will not heat: identify RV, indoor, or outdoor model, check propane, power, and flow, and what an E1 ignition code suggests.
Continue reading →FurrionFurrion Tankless Water Heater E1 Code
Furrion's E1 code points to an ignition-stage flame problem, usually short propane supply. What to check, how to reset once, and when to call for service.
Continue reading →FurrionFurrion Tankless Water Heater Troubleshooting
Furrion RV tankless not heating? The E0 to E7 codes, plus the winterize, flow, 12-volt, and propane problems that cause most no-heat calls.
Continue reading →GirardGirard Tankless Water Heater Reset: How It Works
The Girard GSWH-2 has no tank-style reset button. How the manual says to clear a lockout, and which codes should not be reset.
Continue reading →GirardGirard Tankless Water Heater Troubleshooting
Girard GSWH-2 RV tankless codes E0 to E9, En and Fd explained from the owner's manual, plus flow, propane, and 12-volt checks.
Continue reading →SuburbanHow to Reset a Suburban RV Water Heater
Suburban RV water heaters have two resets: the DSI lockout restart and the ECO high-limit. What the manual says for each, and when not to reset.
Continue reading →OasisOasis RV Water Heater Troubleshooting (ITR Hydronic)
Why an ITR Oasis hydronic heater in a motorhome gives cold showers: coolant level, 12-volt supply, burner flame-out, pumps, and the mixing valve.
Continue reading →SuburbanSuburban RV Heater Not Working on Gas
Suburban RV water heater works on electric but not propane? Check LP supply, 12-volt power, and the lockout light, then let an RV tech handle ignition.
Continue reading →SuburbanSuburban RV Water Heater Leaking
Water around a Suburban RV water heater usually comes from the anode plug, relief valve, fittings, or bypass valves. How to find it and when to replace.
Continue reading →SuburbanSuburban SW6DE and SW10DE Troubleshooting
Suburban SW6DE or SW10DE not lighting, not heating on electric, leaking or noisy? Sort it by fuel and symptom, do the safe checks, know what gets fixed.
Continue reading →SuburbanSuburban Tankless Troubleshooting
A Suburban Nautilus on-demand RV water heater with no hot water: check flow, 12-volt power, and propane, read the code, and know when to call a tech.
Continue reading →SuburbanSuburban Water Heater Igniter: When It Needs Replacing
How to tell whether a Suburban DSI water heater's igniter is really the problem, what to check first, and what an RV technician does to replace it.
Continue reading →SuburbanSuburban Water Heater Not Working on Electric
Suburban RV water heater heats on propane but not electric? Check shore power, the breaker and switch, and the tank fill, then know what a tech tests.
Continue reading →TrumaTruma AquaGo Problems: No Hot Water and Lockouts
Why a Truma AquaGo RV tankless heater gives cold water or locks out: 12-volt supply, LP, water flow, freezing, scale, and the fault codes it reports.
Continue reading →TrumaTruma Water Heater Flashing Light: AquaGo Codes
How to read the Truma AquaGo flashing yellow and red LEDs, what the common short-long codes mean, and when a single reset is appropriate.
Continue reading →