Symptoms
- One specific propane appliance won't light or run
- All propane appliances stopped working at once
- Appliance was working before a tank change or refill
Likely causes
- CommonPropane tank empty or valve closedIf all appliances are affected, this is the most common and simplest cause.
- CommonAir in the line after a tank changeSwitching tanks can introduce air that needs to be purged before appliances light reliably.
- PossibleIgniter or thermocouple failure on a single applianceIf only one appliance is affected, its specific ignition components are more likely at fault than the shared supply.
- PossiblePropane regulator issueA faulty regulator can cause inconsistent pressure affecting multiple appliances.
What to do
- Check the propane tank level and confirm the valve is fully open.
- Test another propane appliance; if none work, the issue is likely the shared supply (tank, valve, or regulator) rather than one specific appliance.
- After any tank change or long period of disuse, expect to need a few extra ignition attempts to purge air from the lines.
- For a single non-working appliance, check its specific igniter or pilot light and clean or replace parts as needed following the appliance's manual.
- Check the regulator for visible damage or wear if pressure seems inconsistent across appliances.
- If you smell gas at any point during troubleshooting, stop immediately and address the leak as a safety issue rather than a maintenance one.
Tools and parts
- Basic hand tools
Appliance-specific igniter or thermocouple, if neededSearch: “RV propane appliance ignition parts for [appliance brand/model]”
When to call a pro
For persistent propane appliance problems, especially with the regulator or gas lines, have a certified RV or propane technician inspect the system.
Safety
Use caution
If you smell gas at any point, turn off the tank valve, ventilate the RV, extinguish any open flames, and don't operate switches or appliances until a professional confirms it's safe.