How To Open Honeywell Thermostat To Replace Battery. The thermostat is in two parts, the control unit, and the wall plate. If it does, replace the battery.
Replace both the aa batteries with new ones. Turn off your thermostat, open the battery compartment on the front, and remove the batteries. Be careful not to damage the pins or clips as you remove the battery cover.
You Will Find An Indicator On The Machine Notifying You That The Battery Is Low.
Once you have taken off the cover it is time to replace the batteries. ( my thermostat is upc code 085267406123. It will either swing up or down, or side to side.
Replace Both The Aa Batteries With New Ones.
Slide the battery compartment sideways to fully take out. When you are done, check the led display to see if the message is gone. Reboot your thermostat via the circuit breaker.
Neutral Wires That Go To N (In) On The Boiler And Also N On The Thermostat.
Open the front cover by pulling the front cover out gently. To reset the battery on a honeywell thermostat, first ensure that the thermostat is turned off. Refit the thermostat to the wall plate.
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Ask your own hvac question. Cant figure out how to open it to get battery compartment and the display is off. The thermostat is in two parts, the control unit, and the wall plate.
This Covers Models Th4210D & Th4110D.
To replace a honeywell thermostat battery, unplug the unit from the wall and wait a few minutes. Hold on the upper and lower side of the faceplate to depress the tab. Have some spare batteries of both aa as well as aaa batteries as some thermostats use either of the two.