Why Does My Honeywell Thermostat Keeps Shutting Off? Fix Guide

“Why Does My Honeywell Thermostat Keeps Shutting Off?” have you ever wondered? You’re not on your own.

This is a relatively common problem that, if not detected and fixed right away, can lead to higher utility bills and expensive thermostat repairs. If the thermostat has been left on for too long, it may need to be replaced.

If Honeywell Thermostat keeps Shutting off constantly and resuming, it can occur for a variety of causes. Some of the most common are thermostat faults, thermostat heating, screen not responsive, and short cycling in the thermostat.

We will go over some of the possible reasons why this might be happening and then we will move on to some troubleshooting steps:

Reasons Why Your Honeywell Thermostat Keeps Shutting Off

If your Honeywell thermostat turns off on its own, it could be due to one of the following issues:

• The thermostat is broken.
• There isn’t enough ventilation in the air conditioner.
• The condensate line has become plugged.
• The amount of refrigerant in the system is insufficient.
• The thermostat is short cycling

Before you’ve had the chance to examine the thermostat and possibly try to determine what the issue might be, it’s hard to know what’s causing the issue.

Below we have put together some troubleshooting steps to help troubleshoot the issue and help you to fix any problems you may be having with your Honeywell Thermostat.

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Method #1. Thermostat Overheating

The thermostat regulates the temperature of the room by controlling the Honeywell system, so if your thermostat pushes excessively hard to maintain the optimum temperature, it can overheat.

If the temperature of the thermostat rises above the setpoint, it will automatically turn off to save the thermostat. When it starts to cool, it instantly turns on and resumes managing your home’s temperature.

Method #2. Not Enough Adequate Airflow

Your Honeywell Thermostat may be shutting down owing to a lack of airflow. Low airflow is caused by a number of secondary problems.

Step 1. Filters That Are Dirty

If you don’t replace your air filters frequently enough, they will become congested and unclean, causing the heat exchanger to hold heat and ultimately overheat.

Unless you have pets or allergies, you should change your air filters every 90 days. If you own pets or have allergies, you must change your air purifiers after 60 days, sometimes less if you do have severe allergies.

Step 2. Air Supply Vents That Are Closed Or Blocked

If your furnace keeps shutting off, take the following steps:

• Check to see if any of your air vents are closed or blocked in any way.
• Keep all of your vents open, even those in rooms that aren’t in use.

Your heat exchanger will not be able to transmit enough heat if it does not receive enough air. The heat will then build up, potentially causing your furnace to short cycle.

Step 3. Wheel of the Dirty Blower

A dirty blower wheel may be causing your furnace to turn on and off too quickly. The blower wheel has blades that push air, and if they are clogged with dirt, they will not perform as well, if at all.

• Clean the blower on a regular basis.
• Replace your air filters regularly.

If you don’t, you can wind up having to pay a lot of money to fix it.

Other Effects Of Low Airflow Include

Blocked Vents: Make sure all of your home’s vents are open and unobstructed so that air can readily enter and escape the return and supply vents.

Problems with the blower fan motor:  Problems with the blower fan motor:  A expert will need to inspect the fan and, if necessary, replace the fan motor.

Defective ducts: Have your ductwork inspected by a professional to search for leaks or disconnected ducts.

Method #3. Short Cycling

When your HVAC system cycles on and off quickly, it is known as short cycling. This “on/off” cycle will continue, causing severe stress and strain on your HVAC system and making it difficult to maintain a comfortable temperature in your home.

1. Make Sure To Check Your Air Filter Too

Short cycling can be caused by an obstructed or filthy air filter.  Your system’s circulation can be suffocated by a plugged or dirty air filter. Reduced airflow might create short cycling symptoms as well as exerting pressure on the system.

2. The Vent Has Been Blocked

Short cycling can be caused by a vent, which can be caused by poorly installed or clogged vents. Ensure all of the vents are nice and clear, particularly the intake vent.

3. Check The Temperature On Your Thermostat

If you have an older thermostat, it may be broken. If you’ve been thinking about switching to a digital thermostat, now is the moment. If you have a smart thermostat, double-check the settings to ensure they are correct.

A replacement thermostat can help to eliminate the possibility of a defective thermostat, even if it is properly set. Short cycling can also be caused by a defective connection.

Make sure your HVAC system is properly sized and that your thermostat is in the appropriate position by contacting the HVAC contractor who fitted your system.

Also Read: Why Honeywell Thermostat Fan Won’t Turn Off?

Method #4. Thermostat Failure

Your thermostat regulates the temperature of your complete HVAC system. So, if your thermostat continues turning off again and on too frequently, your thermostat may be faulty or dysfunctional.

There are a number of reasons why your thermostat isn’t functioning perfectly:

• It could be that the wiring is outdated and needs to be replaced.
• It’s conceivable that the thermostat’s batteries need to be replaced.
• Your thermostat may be in the wrong place.

Unless your thermostat only requires batteries, you’ll need to hire a professional to either fix any outdated wiring or transfer it to a more suitable spot.

Method #5. Thermostat is Auto-updating

As thermostats become smarter, they must be upgraded to the most recent version available. Honeywell distributes out updates via OTA, which must be updated to gain access to all of your thermostat’s capabilities.

Updating the thermostat necessitated an online connection, and your thermostat had to be linked to the internet at the time of the update.

The thermostat begins installing the update as soon as it finishes downloading it, and may shut off whilst it is being updated.

Finally, there are a few possible causes why your Honeywell thermostat keeps shutting off. The main reason for this is that your thermostat is overheating, which means it is working too hard to keep the temperature stable.

Alternatively, there isn’t enough ventilation for the device to function properly.

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Bottom Line:

We hope that the approaches and processes outlined above have assisted you in resolving the Honeywell thermostat constantly shutting off the issue and that you now have a better understanding of why this problem may have arisen.

Should you need any further assistance regarding why your Honeywell thermostat keep shutting off, please do reach out and contact Honeywell’s support team, and they can give you some further troubleshooting steps and advice.