This article rounds up all the info you will need regarding Honeywell Thermostat Battery replacement. Read for a complete and comprehensive guide.
Honeywell thermostats are consistently rated as among the best on the market, but this system is useless if the batteries fail. Are your Honeywell thermostat’s batteries dead? Don’t worry, you won’t have to suffer through the cold for much longer. This article will walk you through the process of changing the batteries.
You must understand how to change the batteries in your Honeywell thermostat because this is one of the system’s most basic operations for keeping your Honeywell thermostat in good working order. However, finding and replacing the batteries can be difficult, so we have compiled information on how to change batteries in a Honeywell thermostat and properly maintain it afterwards.
Here’s how to replace the battery in your Honeywell thermostat.
Honeywell Thermostat Battery replacement- When should you change the battery?
A Honeywell thermostat’s battery should be replaced once a year, and you will receive notification 60 days before the battery expires. As a result, you have enough time to change the batteries, but there is a catch!
The thermostat has an LED screen that displays Low Battery or Replace the battery. This is the first notification you receive, which is likely 60 days before your battery dies. However, another warning is the black screen, which causes your thermostat to stop working.
You may have a thermostat that only uses a battery as a backup, and you may not be concerned about changing the thermostat’s batteries.
It’s possible that your Thermostat does not use battery power and instead plugs into a power outlet. However, you should replace the battery on a regular basis to ensure its accuracy.
Which batteries do Honeywell thermostats use?
The short answer is that most thermostats will require an AA or AAA battery, but some may require a different type of battery. Aside from that, thermostats can use a variety of batteries, the most common of which are AA, AAA alkaline batteries or 3V disc-style lithium batteries. These batteries assist in preventing the thermostat programming from being lost in the event of a power outage, as well as preventing the HVAC system from simply turning on during a power outage.
The first step is to consult the manufacturer’s instructions to determine which type of battery is recommended. If you don’t have the instructions on hand, you can usually find them online or by contacting customer service.
Once you’ve determined what type of battery your thermostat requires, the next step is to determine the appropriate size. Most batteries are either AA or AAA, but some may be of a different size.
If you’re not sure what size battery you need, the best thing to do is compare the old battery to the new one. The old battery should have a label indicating its size, which you can use to find the correct size for the new one.
The next step is to install the appropriate size battery. Because most thermostats have a specific location for the battery, it’s critical to follow the manufacturer’s instructions.
There are a few other things you can try if you’re still having problems. First, ensure that the battery is properly inserted. Sometimes the battery gets stuck, and it’s difficult to tell if it’s in the right way.
Steps to Change Batteries in Your Honeywell Thermostat
Honeywell manufactures several different models of thermostats, each with slight variations in the method to change batteries. This is why before you proceed to change the batteries on your Honeywell thermostat, you’ll need to check the model number on the back of the device. In some models, the model number is printed in small size on the front of the device, or even on the digital display, which makes it easy to find.
Other models have their model number printed on the back. In this case, to find out the model number, follow the steps provided below:
- Ensure that the electricity flow is disconnected from the circuit. It will shield you from any living wire contact.
- Remove the thermostat from the base plate by sliding it from the bottom.
- Turn it back on and write down the model number of the thermostat.
- Now, return the thermostat to its original location.
Please note, if you don’t find the model number of your thermostat even on the back, you can refer to the user manual provided with the thermostat. In case you have lost your user manual, you can find out the model number on the official Honeywell website.
Honeywell Thermostat Battery Replacement – Series 8000
Tested Models: TH8110U, TH8320U & TH8321U
Follow these steps for battery replacement in the series 8000 models:
- Turn off the thermostat, remove it from its base plant, and gently pull out the front cover while holding the base in place.
- Replace the batteries with new AAA batteries, making sure to check the + and – polarity.
- Return the cover to its original position on the base plate.
Honeywell Thermostat Battery Replacement- Series 6000
Tested Models: TH6110D, TH6220D & TH6320U
To replace battery in the series 6000 thermostat:
- Turn off the circuit breaker for the thermostat.
- To remove the battery holder, press and pull the cover from the bottom.
- Remove the battery compartment and insert AA batteries.
- Replace the cover, which was previously secured to the base plate.
- Before installing the battery compartment, double-check the polarity of the battery.
Series 5000 Battery Replacement
Models tested: TH5110D, TH5220D & TH5320U
Follow these steps to replace battery in Honeywell series 5000 thermostats:
- Turn the thermostat off.
- To remove the battery cover plate, press and pull it.
- Replace the old AA batteries with the new AA batteries.
- Check that the positive and negative polarities are in sync.
- Replace the battery cover.
- Restart the thermostat and the circuit.
Series 4000 Battery Replacement
Models tested: TH4210D & TH4110D
Here are the steps to replace battery in Series 4000:
- After turning off the thermostat, pull the thermostat bottom to separate the cover plate from the base plate.
- Replace the old AA batteries with the new AA batteries.
- Check that the positive and negative polarities are in sync.
- Replace the cover plate on the base plate.
- Restart the thermostat and the circuit.
Honeywell Thermostat Battery Replacement- Series 3000
Models tested: TH3110D & TH3210D
To change the battery in a Series 3000 model of Honeywell thermostat, follow these steps:
- Turn off the thermostat and push and pull the thermostat cover from the bottom.
- Replace the batteries once the cover plate has been separated from the base plate.
- Return the cover to its original position by gently sliding it back until it is securely fastened.
- Switch on the thermostat.
Honeywell Thermostat Battery Replacement- Series 2000 and 1000
Tested models: TH1100DV, TH1110DV, TH1210DV, TH2110DV & TH2210DV
Here’s how to replace batteries in series 2000 and 1000 Honeywell thermostats:
- Turn off the power and remove the thermostat from the base plant.
- Remove the old AAA batteries and install new ones. Check that the positive and negative battery polarities are correct.
- Replace the thermostat on the base plate.
- Restart the thermostat and the circuit.
How to replace battery in other Honeywell models
Honeywell Lyric Round thermostat (model number is RCH9310WF):
- Turn the thermostat off.
- Take the thermostat out of the Sub-Base.
- Remove the old AAA batteries and install new AAA batteries.
- Check that the positive and negative polarities are in sync.
- Replace the faceplate cover.
- Restart the thermostat and the circuit.
Honeywell Thermostat Model RTH110B:
- Turn the thermostat off.
- Replace the battery by removing the cover.
- Make sure the battery’s +ve and -ve terminals are in the correct positions.
- Reattach the cover to the base plate.
Frequently Asked Questions
What should I do if my Honeywell thermostat doesn’t work even after replacing the batteries?
If your Honeywell thermostat does not start working even after replacing the batteries, chances are that the batteries are faulty. Put the batteries in another device and check if they function properly. If they do, the problem is within your thermostat. To get it checked out and fixed, you can contact Honeywell customer support.
Why does my Honeywell thermostat display read “low battery”?
Honeywell thermostats start displaying the “low battery” warning 60 days before the batteries actually die. You need to replace your Honeywell thermostat’s batteries with new ones to get rid of the notification.
Why is my Honeywell thermostat showing ‘low battery’ even after replacing batteries with new ones?
If the ‘low battery’ warning does not go away even after replacing the batteries in your Honeywell thermostat, turn off the thermostat, wait for five minutes and then switch it back again. The low battery warning should disappear.
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