To troubleshoot gas furnace burners that do not ignite, inspect the pilot light, ensure the gas valve is on and perform other common troubleshooting tasks. Review the owner's manual for model-specific troubleshooting instructions.Continue Reading
Follow these steps below to troubleshoot furnace ignition problems:
Older furnaces have pilot lights, which can become loosened or clogged. To unclog a pilot orifice, first turn off the gas and power to the furnace, and then use a thin wire to unclog the debris within the orifice. Ensure the pilot light's flame adjustment screw is turned high enough for the flame to not have any yellow in it.
Refer to the owner's manual for specific instructions on how to relight a pilot light, or consult a professional.
On furnaces that feature an electronic ignition, turn the power off and then on again to reset the module.
The furnace needs to receive gas to operate, so inspect the gas valve to ensure it is still in the "On" position. If there are other gas appliances in the home, turn them on to make sure gas is still being supplied to the home.
If common troubleshooting tasks fail, consult a professional to inspect the furnace and perform maintenance and repairs.
To install a gas furnace thermocouple, turn off the gas and power, access the thermocouple through the access panel, remove the old unit, install the new unit and relight the pilot light. Consult a professional with any questions, and immediately turn off the gas and power if the new thermocouple does not operate properly.Full Answer >
To troubleshoot a Nordyne gas furnace, ensure the furnace is turned on appropriately, clean and replace the filter and check to be sure the thermostat has power; check the pilot light and the gas line running into the house. The unit's owner's manual should be consulted for solutions for many of the most common problems.Full Answer >
To troubleshoot problems with a gas furnace's pilot light, it is important to check the pilot light mechanism and flame as well as the gas supply and the condition of important parts, such as the thermocouple. This covers all the elements potentially related to this type of malfunction.Full Answer >
Some of the common problems that cause a Trane furnace to stop heating include improper thermostat settings, a closed gas valve, and blocked vents and filters. Homeowners should first try to reset the unit and see if this solves the problem.Full Answer >