RV troubleshooting by symptom and equipment

Start RV troubleshooting with the symptom and the installed equipment model. Gas odor, an active carbon-monoxide or smoke alarm, fire, or suspected electric shock takes priority over a repair checklist. Leave danger and call emergency help from a safe location.

Separate an emergency from a stopped appliance

The Dometic water-heater gas warning directs occupants to evacuate and avoid electrical switches, engine starting and generator starting when gas is smelled. Do not remain inside to try another ignition cycle. A chirp with a documented low-battery meaning differs from an active alarm, but uncertainty is a reason to leave and identify the signal safely.

After immediate hazards are excluded, write down the model number, displayed code and what happened first. A coach brand does not identify every appliance fitted to it. Use a specific equipment guide below when the model matches.

Power, lighting and charging

• RV battery, inverter or converter problems
• RV generator won’t start or produce power
• dead outlets and tripping breakers
• RV trailer battery not charging while driving: checks in order
• trailer lights and connector diagnosis

Heating, cooling and appliances

• RV air conditioner not cooling, icing or leaking
• Atwood water heater lockout, drips and tank care
• Dometic CCC 2 thermostat codes and reset
• Dometic RM26xx refrigerators: CHECK light and common problems
• RV furnace won’t start or keeps cycling
• Furrion F2GWH tankless water heater
• Norcold N6 and N8 refrigerator fault codes and what they mean
• RV propane tank freezing or won’t flow
• RV refrigerator not staying cold: absorption and compressor causes
• RV roof vent fan will not run, open or close
• RV oven, stove burner and microwave not working: what to check first
• RV propane detector beeping, leaks and no gas flow
• RV smoke, carbon monoxide or propane alarm chirping or sounding
• Suburban furnace start sequence and lockout, step by step
• Truma AquaGo error codes and troubleshooting
• Truma Combi furnace and water heater error codes and what to do
• RV water heater won’t light: what it means

Water, tanks and leaks

• Why RV fresh water smells or tastes bad
• RV holding tank sensors that read full, empty or wrong
• Weak water pressure in an RV: city water, pump and taps
• RV has no hot water or it is only lukewarm: causes and checks
• RV roof leak or ceiling stain: finding where the water gets in
• RV black tank smell, clogs and how long you can go without dumping
• RV sink or shower drains slowly, or water backs up
• Thetford Aqua-Magic V toilet leaks, will not hold water, weak flush
• RV toilet will not flush, will not hold water or leaks
• Water leaking under an RV: which tank, line or fitting is dripping
• RV water pump problems: not running, cycling or no pressure

Moving equipment and roadside faults

• RV awning will not retract, extend or stay put: causes and release
• RV electric entry step will not retract or extend: causes and fixes
• Flat tire on a travel trailer or fifth wheel
• Kwikee Revolution electric step
• RV leveling jacks will not come down or retract: causes and fixes
• Lippert Ground Control 3.0 leveling
• Lippert hydraulic leveling with the LCD touchpad
• Lippert In-Wall slide-out checks and manual override
• Lippert Level-Up 5th wheel touchpad error codes and fixes
• Lippert SlimRack slide-out
• RV 12-volt side has nothing that works: lights, pump, fans
• dead outlets and tripping breakers
• Power Gear electric slide-out
• RV door latches, cabinet catches, locks and lost keys
• RV stuck in mud, sand or snow, and what to do in a roadside emergency
• RV slide-out will not move, or is stuck part way
• RV tire pressure monitor not reading or giving false alarms
• Trailer brake and controller problems
• Trailer sway, and how to hitch a camper
• Winegard AIR 360 RV TV antenna

Prepare a useful service handoff

Photograph the label and fault display while access is safe. Note the power source, water source, weather and whether other equipment still works. Keep the original indication rather than repeatedly clearing it.

An owner check should end where the matching manual says service is required. Gas-pressure adjustments, live electrical testing, stored-energy components and supported lifting mechanisms need the appropriate training and equipment. A generic code description cannot establish that a replacement part is needed.