Having trouble with your heating system? Call Green Energy Mechanical Inc. for assistance!
Why does my furnace keep turning off at night? We know the repeated process of turning on and off as “short cycling,” and this can happen to your air conditioner, too. In this guide, we’ll reveal the most common reasons why your furnace shuts off at night and what you can do to fix it.
After reading, Green Energy Mechanical Inc. can help. We proudly provide fantastic furnace repair in Canton, Massachusetts, and have an A+ BBB rating, so don’t hesitate to reach out today.
Common Reasons Why Your Furnace Shuts Off at Night
Furnaces often use safety protocols when they detect the system is overheating, protecting you and your loved ones from a fire. Whether you have a gas or electric furnace, the unit sends warm air throughout your property and takes in cool air to heat. You can expect your furnace to go through several cycles of turning on and off each hour; however, rapid shutdowns where the unit immediately kicks on is a major warning.
At night, your home doesn’t have access to sunlight, which can make your space warmer. Your furnace also has to deal with cooler temperatures during the nighttime, combating the colder conditions and working harder. Consider these popular reasons why your furnace short cycles:
The Furnace Has a Faulty or Dirty Flame Sensor
With normal use, a furnace’s flame sensor can accumulate dirt and debris, acting as a barrier that prevents it from detecting when a flame is present. When this doesn’t work properly, your furnace may shut down and lead to an on-and-off cycle. Giving the sensor a thorough cleaning and then putting it back in its place could restore your furnace back to normal.
However, if cleaning doesn’t help, the sensor is potentially faulty. Getting a professional’s opinion on the matter can help fix the issue in a timely manner, so don’t delay in calling your local furnace technician for a service appointment.
You Have an Oversized Furnace
If someone installed the wrong size furnace in your property, this could lead to the system repeatedly shutting off. When your furnace is too big, it operates thinking your space is larger than it is and pushes too much warm air. The furnace heats up, then turns off after believing it has reached your desired temperature but doesn’t actually provide your home with the comfort and relief you want.
With an oversized furnace, you’ll likely feel cold despite the production of warm air and will notice the on-and-off cycling. Unfortunately, working with a furnace that’s too big or small leads to numerous problems, so the best solution means swapping yours out for the right size system.
The Blower Motor Needs Replacing
Why does my furnace keep turning off at night? One common reason is that you need a new blower motor. They work hard to send warm air to various spots in your property but eventually fail with extensive wear and tear and normal usage, especially if you have an older furnace.
Furnaces will struggle without a properly functioning blower motor and may short cycle as a result. Work with a furnace repair technician to install a replacement, and your system should return to business as usual.
You Need To Replace a Dirty Air Filter
Dirty air filters contribute to numerous furnace problems, so you should replace them monthly.
Your Thermostat Is Faulty or Resides in a Bad Spot
Thermostats can experience incorrect readings when they are in direct sunlight. Not only does this affect furnaces and boilers, but it also impacts the readings on air conditioners, contributing to the performance of your entire HVAC system. Relocating or replacing a faulty thermostat can potentially resolve a short-cycling furnace.
Resolving a Furnace That Constantly Turns Off
Let’s discuss some troubleshooting tips for an on-and-off-cycling furnace:
- Replace the filter.
- Clean off the flame sensor and flue.
- Check your thermostat.
- Call a trusted furnace professional.
Reach Out to Green Energy Mechanical Inc. for Expert Furnace Repair Services in Canton, MA
Why does my furnace keep turning off at night? If you’re still struggling with a short cycling furnace, connect with Green Energy Mechanical Inc. in Canton. MA. We provide impeccable work, so call us today at (877) 564-9279.
To get assistance when your furnace is not working after a power outage or with another HVAC issue, contact Green Energy Mechanical Inc. in Canton, MA. Call us at (877) 564-9279 to book a service appointment or chat about your needs.
