The igniter, flame sensor and high-limit switch are the parts of a furnace that can be replaced. Other replaceable furnace parts include the mounting bracket, fan blade, control board, capacitor and drain pan. More »

A gas furnace should be replaced when the furnace begins making weird noises, reaches a certain age or displays decreased efficiency and after the burner flame turns yellow. Generally, a gas furnace should be replaced wh... More » Home & Garden Heating & Cooling

With a 10-year warranty on parts, an Armstrong furnace should not need a replacement before the end of that period. In general, Armstrong furnaces are expected to last between 15 and 20 years, with some of them reported ... More » Home & Garden Heating & Cooling

To clean a furnace, vacuum off the burners, and then get the debris off other important components, including the blower, flame sensor, surface igniters and pilot. Change the furnace filter to keep your furnace operating... More »

Some of the parts that may need to be replaced on a furnace during its lifetime include the thermostat, thermocouples and igniter. The thermocouple is often the first part that needs to be replaced. More » Home & Garden Heating & Cooling

A gas furnace flame sensor is part of an electric ignition system that is connected to the gas valve to control the flow of gas to the furnace. A flame sensor can come in both L or straight shapes, and it is part of the ... More »

To repair a Goodman gas furnace, check the fuses and circuit breakers, clear the debris from the filter and clean the flame sensor. Other potential repairs include removing blockages from the flue and switch hose, adjust... More » Home & Garden Heating & Cooling