Heating Tips

Common Furnace Problems

Winters can often hit people quite hard and as a result, they look forward to the heating furnace. Unfortunately, many tend to wake up cold in the morning and we are so sorry if it happened to you. But, the good news is that today we will help you to identify some common furnace problems so as you can know how to fix them.

#1. Issues With the Thermostat

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A thermostat is a regulating device component that can sense and adjust the indoor temperature according to climatic conditions. It is responsible for determining when heat needs to be produced and how much is needed. However, when the thermostat does not work correctly, heat may not be produced and circulated throughout your house.

The issues that a thermostat may have which can affect your furnace include:

  • Loose electrical components or fault in the wiring
  • Correct temperature of the physical system not recorded
  • Composition of debris in the thermostat unit
  • Failure of the unit causing an uneven indoor temperature
  • Difference between the capacity and functioning of the furnace and thermostat unit

#2. Dirty and Clogged Filters

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If you have a furnace that is not producing sufficient heat, then first ensure that the air filters are clean and in good condition. Why? Well, dirty and clogged filters are one of the common causes of poor-performing furnaces.

Clogged with mould, pollen and dust, these dirty air filters can reduce the efficiency and performance of your furnace and can lead to the following consequences:

  • Complete failure of the pilot unit of the heating syste
  • Increase in power bills due to load on the furnace
  • A rise in the level of indoor pollution and the unhealthy and dust-filled air can cause multiple respiratory issues
  • Lack of heating around your home space
  • Failure of blowers

Now let me give you a tip: as per some experts, if you want to avoid these issues, it is recommended to check and change your air filters periodically, especially during the scorching seasons.

#3. Pilot Light and Ignition System Issues

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Suppose you have a furnace that is not turning on at all. One common reason could be issues with the combustion system. Generally, a gas furnace relies on a pilot and ignition system to operate and these systems are susceptible to dirt and soot buildup overtime, especially if the furnace is often used but not maintained properly. And, when the components are dirty, your furnace is affected and is unable to heat up your home.

One way to identify a dirty pilot and ignition system is through the absence of a pilot light, a flickering one or one that burns yellow or orange. If you notice that the pilot light has blown out, you can try to relight it on your own after consulting the owner’s manual. However, if the problem persists and you think there is an issue with the combustion system, it is crucial to call an expert.

#4. Cracked Heat Exchanger

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A heat exchanger is responsible for separating the warming flame from the air and keeps your furnace running safely. However, when you over-heat your home or you didn’t clean and replace your air filters, there is a probability that your heat exchanger could crack. In addition, it can also allow carbon monoxide inside your house.

The signs of a cracked heat exchanger include:

  • Soot on the inside of the furnace
  • Unpleasant Odor
  • Water on the floor near the furnace
  • Signs of carbon monoxide poisoning

#5. Limit Switch Malfunction

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How will you know if your limit switch is not working properly? When your furnace is continually blowing, even when it shouldn’t be.

#6. Worn Out Ball Bearings

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The ball bearings in a furnace help the motor to function properly. But, over time, they can wear out and therefore need to be replaced. So, if you hear grinding or scraping noise from your furnace, it means it time to call in a repair expert.

#7. Malfunctioning Blower Belt

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The blower belt is a component of the motor that helps the furnace’s fan to run efficiently. However, with time, the blower belt can start to fray or break and this problem can be identified by a squealing noise.

Do you find yourself in a similar situation? Please share your comments!





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