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Wet_Boots

Supreme Member

Posts: 4,081

Location: Metro NYC

41

Sunday, June 3rd 2012, 3:40pm

throttle down the flow controls on the zone valves ~ if your zone valves do not have flow controls, buy new valves (that have flow controls)

mrfixit

Moderator

Posts: 1,462

Location: USA

42

Sunday, June 3rd 2012, 5:57pm

Could you have messed up the wiring to valve 4 when you changed valve 2?

Are you sure you changed the correct valve?

Try disconnecting the wires at the valve. If valve 4 still runs then there's a problem with one of the valves.

Also do what Boots said...

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