Hello again,
Both the supply and return lines feel cool to the touch… the system is wirsbo and has 9 zones. the funny thing is that it was working a few weeks ago with 90 to 100 degree water….the boiler is a kerr GA 100PV gas fired and the system is controlled with the boiler boss 2400 control plus relays What should I do Now ?? I know the system works but why did it quit working??
Thanks in advance Dan [email protected]