Noted
I have replaced the complete valve actuator recently. Ill have a look at the wiring. What I cannot understand is that how can the pump, boiler and valve be powered when the time controller is off?
I'll take the hit and replace the controller.
Its alway difficult with...
Thanks for comments
The boiler is a Baxi Bermuda which is in chimney breast downstairs. Its a pumped system and the water tank is directly above it in bedroom.
There is no frost stat.
The boiler running has also happened in the summer.
My thoughts are that its the electronic...
Mmmmm
Possibly an airlock?
Can you run a hose from a tap downstairs which is on mains pressure to the tap in bathroom, then force airlock back in tank.
Some time the air fills the top section of a pipe or bend and any water will just trickle under it?
Its always best to ask the obvious but its correct. Its an intermittant problem. The Tempus has a couple of neons indicating when on and they are not illumiated. Pump runs and boiler on but room stat not controlling (stat also has neons red and green and they are not on). I get woken up...
I notice that this has been listed before but it does not appear to have a clear explanation I also have also had a phantom boiler running when the programmer is off(Tempus 7 approx 15 years old). It usually is in the middle of the night. Timed to go off at 22.00hrs and if the tank is drained...