RV LP Gas Detector False Alarms: Complete Troubleshooting Guide
Fix LP gas detector false alarms in RVs. Covers trigger sources, sensor age, proper placement, and when to replace your propane detector.
Fix LP gas detector false alarms in RVs. Covers trigger sources, sensor age, proper placement, and when to replace your propane detector.
When an RV water heater pilot light won't stay lit after releasing the button, it's usually caused by a faulty thermocouple that needs cleaning or replacement. The thermocouple is a safety device that detects the pilot flame and allows gas to flow.
A gas detector that beeps every minute during nighttime hours (7PM-7AM) is typically experiencing low voltage issues, sensor degradation, or interference from temperature changes and humidity. The timing pattern suggests power-related problems rather than actual gas leaks.
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When a Norcold refrigerator starts on propane but shuts off after 1-2 hours, it's typically due to a failing thermocouple, dirty burner, or control board issue. Most problems can be diagnosed by checking the flame appearance and thermocouple connection.
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Most RV heat pumps draw 12-16 amps when running, well within your 30-amp service capacity. However, you'll need to manage other electrical loads to avoid tripping breakers when the heat pump cycles on.
A Norcold N7LX.3F running more frequently than normal typically indicates cooling efficiency problems. Check door seals, thermostat calibration, and ensure proper ventilation around the cooling unit.
When your RV furnace blows cold air but won't ignite, the problem is usually a dirty flame sensor, blocked air intake, faulty ignition board, or gas supply issue. Most ignition problems can be diagnosed and fixed with basic cleaning and component checks.
Furnace running 5-10 minutes then quitting usually indicates overheating from restricted airflow, weak flame, or failing control board. Check combustion air intake, propane pressure, and burner flame quality. Control board becomes suspect if other tests pass.
No hot water pressure with working cold is usually stuck backflow preventer in hot water outlet. Located near tank connection behind water heater. Tapping the device or manipulating the spring frees the stuck valve.
When your RV propane furnace clicks but won't light, it's usually caused by a dirty or failing igniter, blocked air intake, low propane pressure, or faulty control board. Most issues can be resolved by cleaning the igniter, checking propane supply, and ensuring proper airflow.
When your Dometic RV fridge ignites perfectly on AUTO but fails when manually switched to gas mode, the issue is typically a faulty ignition control module or loose wiring connections. The control board may be sending conflicting signals between manual and automatic operation modes.