Hi
I have an old back boiler which runs the hw and ch in my house. it has been running fine for the last 6 years being here.
I replaced the timer which was an old switchmaster (clicking thing) to a newer drayton tempus 7 a couple of years ago and all was working fine till now.
When the timer asked for hot water all is well, i can hear the boiler fire up. But when it asks for centrel heating nothing happens, boiler does not fire nor do radiators get hot.
If i turn on hw the rads stay cold. (As they should do) But if i turn on both the hw and ch then the boiler fires up and the hw and rads get hot.
Its as if the timer is not telling the boiler to fire up. Which is what i thought and replaced the timer with a new one (Same model) today. But still no joy. Does any one have any ideas?
Hopefully
Cooper
I have an old back boiler which runs the hw and ch in my house. it has been running fine for the last 6 years being here.
I replaced the timer which was an old switchmaster (clicking thing) to a newer drayton tempus 7 a couple of years ago and all was working fine till now.
When the timer asked for hot water all is well, i can hear the boiler fire up. But when it asks for centrel heating nothing happens, boiler does not fire nor do radiators get hot.
If i turn on hw the rads stay cold. (As they should do) But if i turn on both the hw and ch then the boiler fires up and the hw and rads get hot.
Its as if the timer is not telling the boiler to fire up. Which is what i thought and replaced the timer with a new one (Same model) today. But still no joy. Does any one have any ideas?
Hopefully
Cooper