So my system is as follows.
Gravity fed system with 3 port valve and tank stat.
The circulation pump live is wired through the tank stat. We have a dual Chanel Hive stat. When it calls for heating is lights up for both heating and hot water (this is to run the pump?). Hive has had gravity mode selected.
Everything was working fine until the last month when the heating will only come on when the hot water needs to be heated. On heating only the pump doesn’t run if the hot water is at setpoint even though the hive is activating heat and water. Even when it’s running when I turn the tank stat down the pump stops and heating stops. The pump love is wired through the tank stat call (it has always been like this)
We have to power everything down and back up.
We have replaced the tank stat, 3 port valve and even the hive but the problem still is here.
No wiring has been changed from when we moved in.
Help please
Gravity fed system with 3 port valve and tank stat.
The circulation pump live is wired through the tank stat. We have a dual Chanel Hive stat. When it calls for heating is lights up for both heating and hot water (this is to run the pump?). Hive has had gravity mode selected.
Everything was working fine until the last month when the heating will only come on when the hot water needs to be heated. On heating only the pump doesn’t run if the hot water is at setpoint even though the hive is activating heat and water. Even when it’s running when I turn the tank stat down the pump stops and heating stops. The pump love is wired through the tank stat call (it has always been like this)
We have to power everything down and back up.
We have replaced the tank stat, 3 port valve and even the hive but the problem still is here.
No wiring has been changed from when we moved in.
Help please