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My controller is showing ‘batt fault’ – how can I fix that?



1 comment

  • Keith Dear

    Can we maybe assume OP Is not an idiot, and already tried that?

    I have the same problem -- installed a new 9V battery but still getting the flashing "Battery needs changing" light. The timer is otherwise dead, it doesn't even work in manual mode. I have two 2-dial timers, and the new battery works fine in the other one. So the problem is in the timer, not in the battery.

    So, back to the original question -- how can we fix that?

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