Furnace Repair St. Paul

Frequently Asked Questions about Furnace Repair

How often should I change my furnace filter?

It's recommended to change your furnace filter at least quarterly, or more often if you have pets, allergies, or live in a dusty area. A clean furnace filter improves indoor air quality and keeps your system running efficiently. Check your filter monthly and change it as needed.

What is the difference between a single-stage and two-stage furnace?

Single-stage and two-stage furnaces have operational differences.
Single-stage furnaces operate at only one output level – full capacity. This may cause temperature fluctuations and higher energy bills because the furnace is either running at its maximum setting or completely off..
Two-stage furnaces can run at both low and high speed. This allows the furnace to modulate its output based on the actual heating demand, resulting in more consistent temperatures, quieter operation, and improved energy efficiency. A two-stage furnace may be a more expensive initial investment, but it can provide greater comfort and savings over time.

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 a few minutes 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, don't attempt to diagnose or repair the issue yourself.

Why is my furnace making strange noises?

Unusual sounds from your furnace can indicate a variety of problems, from minor issues to major malfunctions. :

• Banging or popping: Could be due to dirty burners, delayed ignition, or expanding ducts.
• Squealing or screeching: Often a sign of a problem 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.

If your furnace is making unusual sounds, recommended to contact a qualified HVAC technician for diagnosis and repair. Ignoring unusual sounds can lead to further damage or costly repairs down the road.