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Hi, I have a honeywell ST 9400c programmer. I have to reset the time every time there is power disruption I think it is the inturnal battery gone flat. Will the programmer run OK with out this battery? Cheers

Hi , I Find my Honywell diveter valve v 4073 are only lasting 3-4 years each time the head locks up. I only fit the compleat valve and have it down to a fine art fitting fitting it ( I am a mecanical fitter ), but I find the price of the honeywell valve a silly price. So I asking you guys are...