We've just moved into a new house and was going to get the boiler serviced, but discovered the central heating wouldn't fire up.
The upstairs and downstairs heating is controlled seperately by seperate timers - downstairs timer also controls hot water.
Hot water works fine on timer, and upstairs central heating works fine when called.
The downstairs heating though doesn't seem to want to work when called without the hot water on.
There are three seperate motorized valves with actuators on them (Siemens DVA 2/5?). One each for upstairs, downstairs and the water.
With the heating/hot water off on the timer (or at least not calling), I took the actuators off the valves for the downstairs heating and then upstairs heating.
There's a lever on the side to go from auto to manual. When I moved the lever on the D/S actuator, nothing happened (and don't know if I was expecting it to!). When I moved the lever on the U/S actuator the pump started and the boiler kicked in...
Have we got a duff actuator on the downstairs heating circuit? (I originally took the heads off to make sure that the valves were moving freely, and they are).
The last owner told me that they played around with the lever last winter and it all started working....
Any help/ideas really appreciated.
Cheers.
The upstairs and downstairs heating is controlled seperately by seperate timers - downstairs timer also controls hot water.
Hot water works fine on timer, and upstairs central heating works fine when called.
The downstairs heating though doesn't seem to want to work when called without the hot water on.
There are three seperate motorized valves with actuators on them (Siemens DVA 2/5?). One each for upstairs, downstairs and the water.
With the heating/hot water off on the timer (or at least not calling), I took the actuators off the valves for the downstairs heating and then upstairs heating.
There's a lever on the side to go from auto to manual. When I moved the lever on the D/S actuator, nothing happened (and don't know if I was expecting it to!). When I moved the lever on the U/S actuator the pump started and the boiler kicked in...
Have we got a duff actuator on the downstairs heating circuit? (I originally took the heads off to make sure that the valves were moving freely, and they are).
The last owner told me that they played around with the lever last winter and it all started working....
Any help/ideas really appreciated.
Cheers.