Is your furnace struggling to keep your home warm when temperatures start to drop?

Are you hearing strange noises, noticing uneven heating, or wondering why your furnace seems to run constantly?

When you're dealing with a heating problem in the middle of winter, the last thing you want is to be left wondering whether it's a minor issue or something that needs immediate attention.

In this article, we'll cover some of the most common furnace problems Michigan homeowners experience during the winter, what may be causing them, and when it's time to call a professional for Furnace Repair in Ann Arbor.

Common Furnace Problems to Watch For

Furnace Won’t Turn On

A furnace that won't turn on can be stressful, especially when temperatures are below freezing. Before calling for service, there are a few simple things you can check:

• Check the thermostat: Make sure it is set to "Heat" and that the temperature is set higher than the current room temperature. If your thermostat uses batteries, try replacing them.
• Check the breaker: Look at your home's electrical panel to see if the furnace breaker has tripped. If it has, you can reset it once. If it trips again, contact an HVAC professional rather than repeatedly resetting it.
  

If your furnace still won't start after these checks, there may be an issue with the ignition system, motor, electrical components, or another internal part that requires professional attention.

Furnace Blows Cold Air

A furnace blowing cold or lukewarm air can be especially frustrating during a Michigan winter. The problem could be related to airflow, the filter, ignition, or another component.

Before scheduling service, try:

• Checking the air filter: A dirty or clogged filter can restrict airflow and cause your furnace to struggle. If the filter is visibly dirty, replace it with the correct size and type.
• Checking the thermostat: Confirm that the system is set to "Heat" and the fan is set to "Auto" rather than "On." When the fan is set to "On," it can continue blowing air between heating cycles, which may feel cool.

If your furnace continues blowing cold air after these checks, professional troubleshooting may be needed.

Furnace Runs Constantly

It's normal for a furnace to run more frequently when temperatures are extremely cold. However, if it seems to run nonstop and your home still isn't reaching the temperature on your thermostat, there may be an underlying problem.

You can try:

• Replacing a dirty air filter: Restricted airflow can make it harder for your furnace to heat your home efficiently.
• Checking your vents: Make sure supply vents throughout your home are open and aren't blocked by furniture, rugs, or other objects.
• Checking the thermostat setting: Make sure the thermostat is reading the temperature accurately and isn't set significantly higher than your desired indoor temperature.
  

If the furnace continues running constantly despite these checks, an HVAC professional can determine whether there is an issue with the furnace, ductwork, thermostat, or another part of the system.

Strange Noises or Smells

Does your furnace suddenly sound louder than usual? Banging, rattling, squealing, grinding, or other unusual noises can indicate that something isn't working correctly.

There isn't much homeowners should attempt to repair themselves when it comes to unusual furnace noises. However, you can:

• Check for obvious loose objects: Make sure nothing has fallen near or around your furnace that could be causing an external rattling sound.
• Pay attention to when the noise occurs: Note whether it happens when the furnace starts, while it's running, or when it shuts off. This information can help an HVAC professional diagnose the problem.
  

Some odors may be normal when a furnace first starts up for the season, but persistent or unusual smells should not be ignored. If you smell gas, leave the area and contact your gas utility or emergency services as appropriate.

Uneven Heating Throughout the Home

Is one room in your house comfortable while another feels noticeably colder? Uneven heating can be caused by airflow problems, ductwork issues, insulation, thermostat problems, or a furnace that isn't operating properly.

Before scheduling service, try:

• Checking your vents: Make sure supply and return vents are open and aren't blocked by furniture or other objects.
• Replacing the air filter: A clogged filter can restrict airflow throughout the home.
• Checking for obvious ductwork issues: If you can see a disconnected or damaged section of ductwork, it may be affecting airflow.
  

If certain rooms remain consistently colder than others, an HVAC professional can evaluate your system and help determine the cause

When to Call for Furnace Repair in Ann Arbor

Some furnace problems can be addressed with simple troubleshooting, such as replacing a dirty air filter or checking the thermostat settings. But if your furnace continues to struggle, it's better not to wait until the system stops working completely.

Professional Furnace Repair in Ann Arbor services can help identify the source of the problem, restore reliable heat, and potentially prevent a small issue from turning into a more expensive repair.

If your furnace is making unusual noises, repeatedly shutting off, blowing cold air, or struggling to keep your home warm, contact our team to schedule professional furnace service.