We have the central heating running from a concord wrs boiler. When we turn the boiler level up we get boiling in the system when the system switches off. Steam and hot water comes back up the return into the header tank causing noise and serious condensation
On looking at the wiring, the pump is wired directly in series with the thermostat. When the correct temperature is reached, pump and boiler switch off at the same time.
Is this the correct pump wiring? is there a fix for this?.
Thanks in advance for your help.
On looking at the wiring, the pump is wired directly in series with the thermostat. When the correct temperature is reached, pump and boiler switch off at the same time.
Is this the correct pump wiring? is there a fix for this?.
Thanks in advance for your help.
