Quote:
Originally Posted by retiredguy123
Note that the 9 volt battery has nothing to do with the watering schedule. The battery is only used to program a new system when the house power has not yet been turned on. And then it is used by the contractor to program a new system on a house that has no power. It is not a backup power system. The 9 volt battery is optional and can be removed. A dead battery should have no effect on the watering schedule.
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I was just going to check on my battery. Thanks. It is over 10 years old assuming I have one so if it is dead it had no affect on my system. Spicks in electricity - lighting - can cause a problem with the controller.