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For you to fix household things that break, you need to know how it works, what can go wrong and how to identify the problem which may include the steps in fixing it.

Here are the things that you need to know about repairing your gas furnace:

How does this work?

Natural gas from an outside source is piped to the furnace where it is burned for heat production. A fan driven forced air distribution system blows the warm air through ducts that vent into the various rooms of the house. Older gas furnaces use a standing pilot ignition. Its maintenance involves turning off the pilot each spring and relighting it each fall. Newer, more efficient gas furnaces use an electric spark to light the gas as necessary.

What can go wrong in your gas furnace? Most gas furnaces are reliable. The furnace may not produce heat or may not produce enough heat. Pilot light may go out repeatedly or may refuse to light. Thermocouple maybe faulty. Pilot light might not ignite the burner. The furnace maybe noisy. There are some maintenance and minor repairs that you can make. Always remember that major service should be left to a trained technician.

To minimise the problems with your gas furnace, see to it that each month you check the air filter and clean or replace it if necessary. Clean the blower blades once a year and lubricate the blower motor, and inspect the belt. Oil blower motor lubrication ports, check for proper belt tension, tighten the belt if loose and replace frayed belt.

Parts, materials and tools you may need in doing minor repairs in your gas furnace:

Some parts of your furnace are interchangeable like filters, fasteners and are readily available at your local hardware store. Burners and controls must be purchase from the manufacturer or after market supplier or a heating equipment supplier in your place. Tools that you may need includes screwdrivers, wrenches, pliers, wire brush and multi meter.

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