Quote:
Originally Posted by wshepherd
There are 2 backup batterIES behind the controller face. A 9V and a watch battery. If either is bad, the settings will be randomized.
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If you are referring to a Hunter controller, the batteries have nothing to do with the current settings. They are not backup batteries. When you lose power, the settings are not affected. The batteries are only there to allow the installing contractor to do a system setup if the house does not have power when they want to do an initial system set up.