Hi guys,
any help would be greatly appreciated.
My father-in-laws heating is not working. I hoped it would just be a stuck 3 way valve but no.
I found the actuator stuck in manual. When put back in auto the problem persists.
The motorised valve (HSA3) is operating.
I haven't checked yet (no meter on me when checking) but the boiler is not firing so I assume it is not recieivng a signal.
Pump is running ok.
Am I right in thinking orange is the HW call, and white/brown is heating call ?
Also what other checks can I go through ?
The last problem on this system was a burnt out micro switch on the actuator. If it is this problem again can I buy the micro switch wuthout buying the whole actuator ?
Once again, thanks for the help.
any help would be greatly appreciated.
My father-in-laws heating is not working. I hoped it would just be a stuck 3 way valve but no.
I found the actuator stuck in manual. When put back in auto the problem persists.
The motorised valve (HSA3) is operating.
I haven't checked yet (no meter on me when checking) but the boiler is not firing so I assume it is not recieivng a signal.
Pump is running ok.
Am I right in thinking orange is the HW call, and white/brown is heating call ?
Also what other checks can I go through ?
The last problem on this system was a burnt out micro switch on the actuator. If it is this problem again can I buy the micro switch wuthout buying the whole actuator ?
Once again, thanks for the help.