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Propane heater ignition woes: why your flame keeps flickering out

Rob is a seasoned home improvement writer with over 15 years of experience researching and recommending products for the home. Prior to starting Nurturing Homeaid, he wrote extensively for This Old House magazine and has been featured as a home expert on several TV and radio programs. An avid DIY-er,...

What To Know

  • Obstructions or leaks in the gas line can prevent the heater from receiving a consistent supply of propane.
  • The thermocouple detects the presence of a flame and shuts off the gas if it goes out.
  • It’s recommended to have the heater inspected and serviced by a qualified technician at least once a year.

If you’re struggling with a propane heater that won’t stay lit, you’re not alone. This common issue can be frustrating, but it’s usually fixable. Here’s a comprehensive guide to help you pinpoint the problem and get your heater working again.

Common Causes of Propane Heater Staying Lit

1. Empty Propane Tank: The most obvious reason is an empty propane tank. Check the gauge on the tank to ensure it has enough fuel.
2. Improper Gas Flow: Obstructions or leaks in the gas line can prevent the heater from receiving a consistent supply of propane.
3. Clogged Burner: Soot and debris buildup can block the burner, interrupting the flow of gas and air.
4. Faulty Thermocouple: The thermocouple detects the presence of a flame and shuts off the gas if it goes out. A faulty thermocouple can cause the heater to shut off prematurely.
5. Dirty Pilot Light: A dirty or clogged pilot light will fail to ignite the main burner.
6. Overheating: Some propane heaters have a safety feature that shuts off the gas if the unit becomes too hot.
7. Altitude Adjustment: Propane heaters may need to be adjusted for different altitudes to ensure proper combustion.

Troubleshooting Steps

1. Check the Propane Tank: Make sure the tank is full and properly connected to the heater.
2. Inspect the Gas Line: Check for leaks or obstructions along the gas line. Tighten any loose connections.
3. Clean the Burner: Remove the burner and use a brush or compressed air to remove any soot or debris.
4. Test the Thermocouple: Hold a lit match or lighter near the thermocouple. If the gas valve opens and the flame stays lit, the thermocouple is working properly.
5. Clean the Pilot Light: Use a soft brush to remove any dirt or debris from the pilot light. Relight the pilot and ensure it stays lit.
6. Check for Overheating: Allow the heater to cool down and inspect for any signs of overheating, such as discoloration or melted components.
7. Adjust for Altitude: If operating the heater at a different altitude, consult the manufacturer’s instructions for proper adjustment.

Additional Tips

  • Use high-quality propane to avoid impurities that can clog the system.
  • Keep the heater well-ventilated to prevent carbon monoxide buildup.
  • Have the heater inspected and serviced regularly by a qualified technician.

Why Your Propane Heater Keeps Going Out: A Final Word

By following these troubleshooting steps and tips, you can hopefully resolve the issue of your propane heater not staying lit. If the problem persists, it’s recommended to seek professional assistance from a qualified technician.

Information You Need to Know

Q: Why does my propane heater turn off after a few minutes?
A: This could be due to a faulty thermocouple, clogged burner, or overheating.

Q: Can I use a propane heater indoors?
A: No, propane heaters should only be used outdoors in well-ventilated areas.

Q: How often should I have my propane heater serviced?
A: It’s recommended to have the heater inspected and serviced by a qualified technician at least once a year.

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Rob Sanders

Rob is a seasoned home improvement writer with over 15 years of experience researching and recommending products for the home. Prior to starting Nurturing Homeaid, he wrote extensively for This Old House magazine and has been featured as a home expert on several TV and radio programs. An avid DIY-er, Rob takes pride in testing out the latest tools and gadgets to see how they can make home projects easier. When it comes to heating systems, he's evaluated over 50 different furnace and boiler models over the years. Rob founded Nurturing Homeaid with his business partner Jim in 2020 to provide homeowners with genuine product recommendations they can trust. In his free time, Rob enjoys remodeling old homes with his family and traveling to visit architectural landmarks across the country. He holds a bachelor's degree in Journalism from Syracuse University.
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