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Frequently Asked Questions about Furnace Repair

Is your furnace acting up? Get answers to common questions about furnace repair so you can make informed decisions.

How do I reset my furnace?

Before calling for repairs, consider resetting your furnace. Here's how to reset most furnaces:
  1. Turn off the furnace: Set the thermostat to the 'off' position.
  2. Turn off the power: Locate the circuit breaker for your furnace and switch it off.
  3. Wait: Wait at least 30 seconds, though longer is sometimes recommended for the system to reset.
  4. Turn the power back on: Flip the circuit breaker back to the 'on' position.
  5. Turn on the furnace: Turn the thermostat back on and set it to your desired temperature.
If the problem persists or if you encounter error codes, it's best to call a qualified HVAC technician for diagnosis and repair..

What is a heat exchanger in a furnace?

The heat exchanger is a vital component in a furnace. It warms the air blown into your home. It's a safety feature separating exhaust gases. Cracks in the heat exchanger can be very dangerous, causing carbon monoxide to enter your house. Annual maintenance by a professional is highly recommended.

Why is my furnace making strange noises?

Strange noises from your furnace can indicate a variety of problems, from minor issues to major malfunctions. :
  • Banging or popping: Could be due to a buildup of sediment in the heat exchanger.
  • Squealing or screeching: Often indicates an issue with the blower motor or the inducer motor.
  • Rumbling or vibrating: Check for loose parts or components.
  • Clicking: Could be from the igniter, but it can also come from other electrical problems If the clicking sound is persistent, it is best to contact an HVAC technician.
  • Whining: Often caused by a problem with the blower motor or inducer motor.
Addressing the issue early can often save you from a larger expense later.

How do I relight my furnace's pilot light?

If your furnace has a pilot light and it won't stay lit, you can try relighting it by following the manufacturer's directions on the furnace. However, if you're not comfortable working with gas or if you're unsure about the process, it's always best to contact a qualified HVAC technician. If you smell gas, leave your home immediately and call your gas company or emergency services. .

How do I reset my furnace?

If your furnace isn't working correctly, a simple reset can sometimes resolve the issue. Here's how to reset most furnaces:
  1. Turn off the furnace: Set the thermostat to the 'off' position.
  2. Turn off the power: Locate the circuit breaker for your furnace and switch it off.
  3. Wait: Wait at least 30 seconds, though longer is sometimes recommended for the system to reset.
  4. Turn the power back on: Flip the circuit breaker back to the 'on' position.
  5. Turn on the furnace: Turn the thermostat back on and set it to your desired temperature.
If the problem persists after the reset, it's best to call a qualified HVAC technician for diagnosis and repair..

What is a heat exchanger in a furnace?

The heat exchanger is a vital component in a furnace. It is responsible for transferring heat from the combustion process to the air that circulates throughout your home. . The heat exchanger also acts as a barrier between the combustion gases and the circulating air, preventing harmful gases, such as carbon monoxide, from leaking into your living space.. Regularly checking and cleaning your heat exchanger and scheduling professional maintenance are crucial for ensuring its proper function, preventing cracks, and maximizing its lifespan.

Why is my furnace making strange noises?

Unusual sounds from your furnace can indicate a variety of problems, it's important to pay attention to these sounds to identify potential issues early on:
  • Banging or popping: Could be due to dirty burners, delayed ignition, or expanding ducts.
  • Squealing or screeching: Often indicates an issue with the blower motor or the inducer motor.
  • Rumbling or vibrating: Might suggest a loose or damaged component or a problem with the burner.
  • Clicking: Could be from the igniter, but it can also come from other electrical problems If the clicking sound is persistent, it is best to contact an HVAC technician.
  • Whining: Similar to squealing or screeching, this indicates an issue with a motor.
If your furnace is making unusual sounds, it is best to have the system inspected. Ignoring unusual sounds can lead to further damage or costly repairs down the road.

How do I relight my furnace's pilot light?

If your furnace has a pilot light and it goes out, you can try relighting it by following the manufacturer's directions on the furnace. However, if you're not comfortable working with gas or if you don't feel safe doing it, it's always best to contact a qualified HVAC technician. If you smell gas, leave your home immediately and call your gas company or emergency services. .