Vaillant Ecotec isolating valves

[kneedeep]

I may be being dumb, but can someone tell me please how to open and close the heating flow and return valves on a Vaillant ecotec boiler? There seem to be some lugs which prevent the valve spindle from turning; is a special tool required? I've tried with a screwdriver and just managed to chew the thing up.

Thanks.

 

[Boilerman2]

I thought a small spanner was needed (quarter turn valve)

 

[petit_pablo]

Hex keys in the middle iirc

 

[Bunnyman]

Don't use screwdriver ever use 3mm Allen key

Untitled

• Bunnyman
• 26 Mar 2010
• 499

 

[kevindgas]

large flat screwdriver once its been turned once, but first time always use an allen key or you will mash the valve.

 

[kneedeep]

Thanks guys.
Silly me, I didnt spot the hexagons inside the hole in the valve stem !!