my heating control system is (acl life style lp241).while hot water
switch on in control panel heating system is also getting hot.i would
like to know is it the problem for mid position valve or control
system or thermostat.

thanks

biju

In an earlier contribution to this discussion,
wrote:

my heating control system is (acl life style lp241).while hot water
switch on in control panel heating system is also getting hot.i would
like to know is it the problem for mid position valve or control
system or thermostat.

thanks

biju

It could be any of those things - but the most *likely* cause is that the
3-port valve is stuck in the mid position. Remove the actuator from the
valve, and make sure that the valve spindle turns freely. If it doesn't, the
actuators spring return won't be able to move the valve back to the HW-only
position.
--
Cheers,
Roger
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