hello ... i seem to be having problems with the three port valve on my central heating system its a honeywell i changed the head motor today because it wasn't switching to ch but still no joy they dont seem to be any power to the motor . but i dont know where the power comes from timer / room stat ect . the timer i have is a acl switchmaster sm400 .manualy moving the lever to ch works ok but with the motor out of the head the cog dont move .
3 port valve problems
- Thread starter shanesfords
- Start date
Sponsored Links
the five wires from the valve head.tested at the numbered distribution board
blue wire 0v
orange wire 240v
white wire 240v
grey wire 0v
blue wire 0v
orange wire 240v
white wire 240v
grey wire 0v
DIYnot Local
Staff member
If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Are you a trade or supplier? You can create your listing free at DIYnot Local
Sponsored Links
