Hi all
I have a Vaillant Ecotec 624 System boiler with uniSTOR 210L cylinder. also have a 3 channel hortsmann programmer which controls:
a- Hot Water
b- Heating Zone 1 - Radiators downstairs
c- Heating Zone 2 - Radiators upstairs
(both radiator zone are controlled via 2 separate honeywell thermostats)
In addition to the above, I also have an UFH circuit which has its seperate thermostat/programmer (Heatmiser)
Since yesterday, the UFH pump is constantly running despite the thermostat/programmer off. Worst, the boiler is also running constantly and supplying hot water to the UFH system.
Can someone advise as to what I need to check to troubleshoot this?
Thanks in advance
I have a Vaillant Ecotec 624 System boiler with uniSTOR 210L cylinder. also have a 3 channel hortsmann programmer which controls:
a- Hot Water
b- Heating Zone 1 - Radiators downstairs
c- Heating Zone 2 - Radiators upstairs
(both radiator zone are controlled via 2 separate honeywell thermostats)
In addition to the above, I also have an UFH circuit which has its seperate thermostat/programmer (Heatmiser)
Since yesterday, the UFH pump is constantly running despite the thermostat/programmer off. Worst, the boiler is also running constantly and supplying hot water to the UFH system.
Can someone advise as to what I need to check to troubleshoot this?
Thanks in advance