Drayton ZA5 zone valve actuator not working

[Gwreay]

Afternoon,

First post on here but you all seem like a really helpful bunch, hoping to find the problem with my valve.

When called for heating there is no movement in the motor, we put in a new one just incase and still nothing.

I've measured the voltage across the points powering the motor and it's at 20v when calling for heating.

The valve does not respond to calls for heating or move when isolated.

Any ideas?

Cheers

 

[ianmcd]

It should be 230v AC not 20 V

 

[Gwreay]

Cheers for the quickwquick reply.

I thought that might be the issue, just need to work out why it's only getting 20v now!

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