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Roger
The Timers on the 337H are adjustable. Peel bacl the label with the p/n on it and you will see hole, use a flat bladed screwdriver and you can adjust the time it cycles on. It will take a couple of attempts to get it right. There is no other source the valves can get power from, though pulling the C/B might cause the vacuum not to pull the boots in streamline, check all the valve work and are free to move this can be done without removiing them. On the top of the valve is a pin if you push it down with your finger it should return back when you let go. If it does not remove and clean the valve and pin. Regards Pete |