Vaillant ecoTEC plus 824 actuator motor cycling

[Eddy99]

Hi, as title says the actuator motor keeps cycling and sounds like the gears slipping.
The pump is running freely and the diverter valve is running free.
I have seperated the motor from the diverter valve and extended the motor piston.
On powering up the boiler the piston retracts but then goes into a cycle and the display shows temperature and pressure alternatively.
I have a new motor on order or am I looking at this the wrong way ?

Eddy

 

[Timmy D]

Sorry buddy, we can’t discuss the inner workings of a gas boiler on an open forum.

You must appreciate that some people have the will but not the ability and any advice we could give, could be dangerous to the untrained.

If you’re qualified, gain access to the private forum and repost.

Ta.