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Do you notice that cold air still escapes from your vents even after you’ve turned on your heating system? This might result from a blown fuse or tripped circuit breaker in your heating system. However, fuses and circuit breakers are not permanent solutions, so they must be replaced when they fail. The condensing unit has a malfunctioning compressor or one of its other internal parts, such as the fan motor. There are many reasons why your furnace is blowing cold air. The most common ones are:

The Thermostat Is Set Too High

If you find it challenging to keep your home warm during the winter and doing so leads to greater energy expenses for you, you may be experiencing something known as “furnace blows.” This illness is common, but avoidance is possible. Before turning off your furnace and calling a professional, check a few things to see if you can solve the problem independently.

The Blower Motor Is Burned Out or Not Working Properly

If the air from your furnace is cold, it’s likely because the blower motor has overheated and ceased operating. The furnace is still releasing air via the vents, but because the fan has stopped working, the air being released is only at ambient temperature. If the furnace can’t adequately circulate warm air to maintain a comfortable temperature throughout the area, it may cause discomfort for the people within.

The Wiring Connections to the Blower Motor Are Loose, Broken, or Corroded

It would help if you took good care of your heating system since it is one of the most vital components of your house. Unless you know what to look for, you may only realize something is wrong with your furnace once it’s too late. There might be a few things going on if your furnace isn’t blowing as strongly as normal or if you hear unusual sounds.

Loose, damaged, or corroded wire connections to the fan motor. The motor may overheat and fail as a result. Age or usage have taken their toll on the blower motor. The furnace’s on/off switch might be broken. Before they require professional replacement, these switches have a lifespan of roughly 15 years. The front heat exchanger or the gas valve that regulates gas flow through the system may also require replacement after some time, owing to normal wear and tear.

The Electrical Circuit Board Is Faulty

When your furnace stops working, you may be tempted to seek emergency service, no matter the cost. But sometimes it takes a little patience and the correct cure. A defective electrical circuit board is a typical cause of a malfunctioning furnace. This component controls the furnace’s heat flow rate and temperature.

Wear and tear cause an eventual replacement. Faulty ones are easy to see since they cause the furnace to refuse to turn on no matter how often the switch is flipped. Whether you suspect this is the case or not, try turning off all the lights in the home and then turning on the furnace to see whether it works. There must be an issue with the electrical circuit board if it will not power up.

The Heat Exchanger Coil Leaks

Leaks in heat exchanger coils are rather frequent. The metal’s natural degradation over time and use is a common cause of leaks. A furnace repair professional can quickly diagnose and solve the issue, but there are warning signals you should look out for to prevent the need for expensive service.

Where exactly does the heat come from in your boiler? A leak may be present if you detect any strange odors emanating from that area of your house. Your furnace may leak a little water if you see wet patches on the walls or floor around it. If the condensation comes from a gas furnace, it might also affect your electric account; thus, higher-than-average power costs during the winter could be a warning sign.

The best action plan for the harsh winter months is to call an HVAC technician. Experts can ensure your home is free from heating system breakdowns, radiator malfunctions, and water temperature fluctuations. They will thoroughly examine your house and provide a comprehensive report of their findings and recommendations. It will be too late if you wait. Contact an expert to ensure that everything operates as you want.

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