Hi,
Please can anyone advise me on a problem I have with my heating. All of my radiators are constantly on despite my thermostat being turned down and heating switched off.
I've read quite a few threads on this forum and think it could be a problem with a Drayton ZA5 zone valve actuator in my airing cupboard. I found that the switch that should move from A to B wasn't moving when the heating was turned on or off.
I have dismantled the zone valve actuator and have found that:
• I can manually move the arm on top of the box to turn the valve on or off.
• The motor seems to be whirling around okay inside the circular part of the actuator when I turn the heating on and off.
What I can't figure out is why the heating isn't switching on and off properly if the valve arm has movement and the motor inside the actuator seems to be working.
Can anyone help??
I am a complete novice and have to admit to not even knowing what a zone valve actuator was until yesterday so please be kind!
Please can anyone advise me on a problem I have with my heating. All of my radiators are constantly on despite my thermostat being turned down and heating switched off.
I've read quite a few threads on this forum and think it could be a problem with a Drayton ZA5 zone valve actuator in my airing cupboard. I found that the switch that should move from A to B wasn't moving when the heating was turned on or off.
I have dismantled the zone valve actuator and have found that:
• I can manually move the arm on top of the box to turn the valve on or off.
• The motor seems to be whirling around okay inside the circular part of the actuator when I turn the heating on and off.
What I can't figure out is why the heating isn't switching on and off properly if the valve arm has movement and the motor inside the actuator seems to be working.
Can anyone help??
I am a complete novice and have to admit to not even knowing what a zone valve actuator was until yesterday so please be kind!