Before You Learn How to Repair Your Gas Furnace

Perhaps the best thing to do before learning how to repair gas furnace is to consider how to buy gas furnace, or even better, maybe learn how a gas furnace works. If you know what makes your furnace function, you will be better prepared if you need to learn how to repair gas furnace.A gas furnace fires up when the thermostat it is connected to initiates it to start. The steps in the process are as follows:1.    Temperature in the room drops below the preset thermostat level.2.    Thermometer sends an electrical impulse to the furnace relay.3.    The relay causes the blower to come on and gas to be delivered.4.    The burner inside the combustion chamber lights.5.    Heat is created in the heat exchanger.  The heat exchanger is a chamber around the burner that air flows through.  The air is heated as it circulates around the burner.6.    Warmed air is pushed out and through the duct vents into your home.7.    Any gases created by the combustion process are vented out the roof or wall.This process is repeated each time the temperature in your home drops below the desired level you have set your thermostat on.Repair and Maintenance of Your Gas FurnaceA basic understanding of this process is helpful whether you are deciding how to repair gas furnace or buying a new gas furnace.  If you understand the components of your furnace and how they operate, you will be better equipped so that you are not taken advantage of.  For instance, you may not want to handle a major problem with your furnace yourself, so you call a repairman.  The repairman may advise you to buy expensive gas furnace replacement parts or even a new gas furnace; when you do not really need one.  If you are somewhat knowledgeable about how your furnace operates, you may be able to diagnose a problem, even if you do not know how t o repair a gas furnace.A part of owning a gas furnace system knows what routine maintenance your furnace requires.  A major maintenance requirement is replacing the filter.  This is a simple task and only requires you know where the filter is and what size filter you furnace needs.  You should check and replace your filter at the beginning of the heating season and check the filter once a month during operation.  If the filter is dirty, you should replace it.  Some models of furnace have a reusable variety of filter.  This type of filter requires you to clean it at the same times you would otherwise change a disposable one.  If a reusable filter is available for your furnace, it is a great way to be environmentally friendly and maintaining your heating system at the same time.  Changing your filter routinely will help ensure your heating system operates at optimum efficiency and lasts as it should.For other questions about maintenance and how to repair gas furnace; you should read and keep the manufacturer’s instructions in an easy to find location.  Many manufacturers’ guides have a troubleshooting section if you are encountering problems with your furnace.  If you do not have the manual, check online or contact the manufacturer for a replacement copy.