Battery Replacement (P200 Models Only)
The thermostat's display will let you know when the batteries are low and need to be replaced.
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Remove the thermostat by pulling it away from its mount as seen below.
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Be sure to use fresh AA batteries and insert them as shown.
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After inserting the new batteries, align the thermostat with the UWP wall plate and push gently until the thermostat snaps back into place.