Tips & advice

Furnace Not Working? Here’s What to Check Before You Call

April 23, 2026

A technician in a red Coleman bucket hat and blue Complete Home Comfort shirt repairing the burner compartment inside an open furnace cabinet.

Waking up to a cold house is the worst—especially in the middle of a Michigan winter.

If your furnace isn’t working, don’t panic. There are a few simple things you can check before calling for service.

🌡️ 1. Check Your Thermostat

Make sure:

  • It’s set to “heat”
  • The temperature is set higher than the room temp
  • Batteries aren’t dead

👉 This is more common than you’d think!

🧼 2. Look at Your Air Filter

A clogged filter can cause your system to overheat and shut down.

Signs:

  • Weak airflow
  • System turning on and off frequently

💡 Replace your filter if it’s dirty—it can fix the issue instantly.

⚡ 3. Check the Breaker

Your furnace may have tripped the breaker.

  • Locate your electrical panel
  • Look for a flipped switch
  • Reset it if needed

🔥 4. Pilot Light or Ignition Issue

If you have an older furnace, the pilot light may be out.

Newer systems use electronic ignition, which can also fail.

👉 If you’re unsure—this is a good time to call a pro.

🚨 When to Call for Help

If your furnace still isn’t working, it could be:

  • A faulty blower motor
  • Ignition system failure
  • Worn-out components

📍 Furnace Repair in Monroe, MI

Don’t sit in the cold—our team is here to help.

✔ Fast, reliable heating repair ✔ Serving Monroe since 2016

📞 Call today to get your heat back on.

Ready when you are.

Book online now, or call and talk to a real person.

Technician was prompt, professional, and courteous, and prices were reasonable. Would definitely hire again!

Rated 5 out of 5. Kathleen

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Korey P.

Rated 5 out of 5.1 day ago on Google

Joe did a great job maintaining our generator and installing a battery and got it back up and running. Great job and thank you for checking out our thermostats

Judy

Rated 5 out of 5.1 day ago on Google

This is the greatest company! They are efficient, clean and very courteous! They always call ahead of your appointment time . They come ONTIME , every time. They replaced my furnace filter, water filter for the humidifier and did the annual maintenance on the furnace. I purchased the annual maintenance service as well. The entire bill was just over $200. My air conditioner service in the spring will cost me nothing. I have been with Home Comfort for many years. I live in the Legacy Estates subdivision in Temperance Mi. Call them . You can’t go wrong. You won’t overpay for quality service.

Karen G.

Rated 5 out of 5.1 day ago on Google

Mine was a boiler cleaning for the upcoming winter season. Jeremy could not have been more thorough and a very nice young man. I’ve been with Complete Home Comfort for quite a while now. I would never go anywhere else.

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