Need to Replace Thermostat Batteries But Aren’t Sure How? Let Us Help

Need to Replace Thermostat Batteries But Aren't Sure How? Let Us HelpThe reasons to replace thermostat batteries once a year are numerous. The procedure to do so in battery-operated thermostats is simple. First of all, installed batteries may leak after an extended period, corroding the battery contacts inside the thermostat and perhaps even ruining the unit. Second, your thermostat may begin to operate irregularly as battery voltage declines. Eventually, it won’t operate at all. If that point occurs while the furnace happens to be cycled off, the heat will not come back on again until the problem is tracked down and corrected. In acutely cold weather, this could result in frozen pipes at worst – or a very uncomfortable house, at least. Any HVAC service person can tell you: Dead thermostat batteries are often the last thing the homeowner suspects and checks for when the system becomes unresponsive.

Most digital thermostats will display a “Low Battery” message to warn you that the battery has dropped below 10 percent of capacity and you’re about to lose control of your heating and cooling system. Don’t wait for that. Replace your thermostat batteries once a year with this easy procedure.

  1. Digital wall thermostats utilize either three or four “AA” alkaline batteries.
  2. Grasp the thermostat housing and pull outward or slide it up to remove it from the wall mounting.
  3. Turn the thermostat over to reveal the battery compartment slots.
  4. Remove the old batteries.
  5. Insert new batteries into the battery compartment slots, making sure you get “+” and “-”  polarity correct, per the markings on the housing.
  6. Replace the thermostat housing on the wall mounting plate and push in or slide it down to lock in place.
  7. Most programmable thermostats will not lose programmed settings while the battery is being changed and should resume scheduled events automatically when the system is turned on again.

Need help to replace thermostat batteries? Paitson Bros. Heating and Air Conditioning has been here to handle all your HVAC issues – minor and major – since 1922.

Our goal is to help educate our customers in Terre Haute, Indiana about energy and home comfort issues (specific to HVAC systems). For more information about thermostat batteries and other HVAC topics, download our free Home Comfort Resource guide.

Credit/Copyright Attribution: “Danylo-Samiylenko/Shutterstock”

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    Jeff Paitson Jeff Paitson is a third generation business owner who continues to run the business with the same values that have been passed down from previous generations since 1922.

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    Ethan Ethan Rayburn is a lifelong resident of Terre Haute and a 2005 graduate of Purdue University.

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