Honeywell is a brand of thermostat that has reputable of being reliable and trustworthy. However, even the best-built technologies sometimes require going through a repair or a reset process, especially if the model you have already been in use for several decades.
If you detect something wrong with your home temperature system, you may need to check how to reset Honeywell thermostat old model below.
How to Reset Honeywell Thermostat Old Model
Having existed in the business for more than a century, Honeywell has put out plenty of thermostat models. The brand has become a ubiquitous name for dial thermostats, even if other companies produced them.
Now, if you have an old Honeywell thermostat that has been around for at least 20 to 30 years, then obviously resetting method that’s applicable for modern models won’t work for it. In fact, your thermostat is most likely to run by analog or battery power. It also usually doesn’t have reset button like newer models.

To determine how to reset Honeywell thermostat old model, you need to check the series model first. It’s usually written on the product packaging or at the back of the product. If you need to locate the number of products on its back, then lift the thermostat carefully from the walls. It usually doesn’t require you to use any tool.
Here are the steps on how to reset Honeywell thermostat with no reset button but with battery power:
- Turn off the thermostat and then lift off the batteries
- Reverse the position of the battery, so the positive would be placed in negative and vice versa
- Wait for several seconds and then put the position back correctly
- The Honeywell thermostat is going to be reset and enter factory settings mode
- Reprogram the thermostat back to your normal setup
Keep in mind that not all older models of Honeywell thermostat use batteries. In this case, you need to reach the electrical system of your home. A faster method to reset your home heating system is switching the power on the circuit breaker off. The thermostat will reset after you turn it on back.
If the guide above and a reset process won’t work to solve your home heating system problem, then it may be the right time to upgrade. You can choose to change into a programmable thermostat that has been existed for some time now. A programmable thermostat is a more modern option that helps keep a regular temperature setting schedule, with more advanced control using the technology it comes with.
An even more modern and sensible option is to choose a smart thermostat. For most home heating systems, this product gives maximum control and greater benefits compared to analog or programmable thermostats. However meanwhile, if you still want to retain your current heating system, you may try the guide on how to reset Honeywell thermostat old model above.