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Gas Furnace Troubleshooting

If your home isn’t getting as warm as it should, or you notice that no hot air is coming from the vents, the problem could be with the gas furnace.

Remember: Always use caution when dealing with gas-powered appliances. If you smell gas, or otherwise suspect a gas leak, leave the house immediately and call your gas company's emergency number.

Here are a few common furnace problems, and the steps you can take to fix them. If the gas furnace troubleshooting tips here don't resolve the issue, call your local Trane Comfort Specialist. A certified technician will come to your home to diagnose and fix the problem.

Low airflow

Low airflow is a common issue with gas furnaces, and one that's usually easy to fix. Try changing or cleaning your air filter – over time, dust and dirt will build up in the filter screen, restricting airflow. If that doesn't fix the problem, you may have a blockage in your air ducts. Contact your local Trane Comfort Specialist to have the ductwork inspected and cleaned.

No heat

The most common reason a furnace stops producing heat is an issue with the pilot light. The pilot light is a small flame that ignites the main furnace flame when your thermostat detects that the house is too cold. If the pilot light goes out, your furnace won't be able to light. Follow the instructions in your owner's manual for lighting a pilot light, or call your local Trane Comfort Specialist for help.

Heating bill is too high

If your gas bill is higher than you expected during the colder months, there are a few things you can do to cut down. Start by closing the air registers in rooms you don't often use, and consider installing ceiling fans to circulate the warm air throughout each room. These and other efficiency tips can help lower your heating bill with little or no upfront cost.

Contact a Trane Comfort Specialist

If you're not able to identify or resolve the problem with your gas furnace using these troubleshooting tips, contact your local Trane Comfort Specialist. A certified technician will come to your home to diagnose and repair your unit. And remember that keeping up with regular gas furnace maintenance can help prevent problems before they become serious.

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