Furnace Repair Roanoke

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. Regularly replacing filters is simple and helps prevent many furnace problems. A clogged filter makes your furnace work harder, wasting energy and shortening its lifespan.

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

Single-stage and two-stage furnaces differ in their heating output capabilities:
Single-stage furnaces have only one setting, they either operate at 100% or are off. This may cause temperature fluctuations and higher energy bills because the temperature fluctuates more than with two-stage furnaces.
Two-stage furnaces offer two levels of heat output: a lower setting for mild weather and a higher setting for colder temperatures. 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 fully power down.
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..

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 dirty burners, delayed ignition, or expanding ducts.
• Squealing or screeching: Often indicates an issue with the blower motor or other moving parts.
• Rumbling or vibrating: Check for loose parts or components.
• Clicking: May be from the igniter, but it can also come from other electrical problems Electrical issues can be hazardous, so contact a professional.
• Whining: Similar to squealing or screeching, this indicates an issue with a 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.