S
State of Flux
Scenario:
- pumped CH in 22mm, Gravity HW in 28mm
- stat and two channel programmer working fine
- pump spinning (whole house gets heat within a few minutes)
All as you would expect from a 2005 installation and the house gets heat and HW.
Question:
- how frequently should the boiler be cycling on and off? (I'm no expert on this boiler)
When the rads are cold and the cylinder needs reheating it only runs for about 10 minutes then shuts down. 5 minutes later, up it comes again. Everything shouts OVERHEAT STAT in boiler but it does it so quickly.
I'm minded to change the (10 year old) pump as it's noisy but don't expect this to stop the cycling as the issue is there in HW only. Might it simply be a faulty overheat stat that needs replacing?
Appreciate your insights...........
- pumped CH in 22mm, Gravity HW in 28mm
- stat and two channel programmer working fine
- pump spinning (whole house gets heat within a few minutes)
All as you would expect from a 2005 installation and the house gets heat and HW.
Question:
- how frequently should the boiler be cycling on and off? (I'm no expert on this boiler)
When the rads are cold and the cylinder needs reheating it only runs for about 10 minutes then shuts down. 5 minutes later, up it comes again. Everything shouts OVERHEAT STAT in boiler but it does it so quickly.
I'm minded to change the (10 year old) pump as it's noisy but don't expect this to stop the cycling as the issue is there in HW only. Might it simply be a faulty overheat stat that needs replacing?
Appreciate your insights...........