Honeywell BS864-2 22mm possible to replace head without draining? | Central Heating Forum | Plumbers Forums

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Honeywell BS864-2 22mm possible to replace head without draining?

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Discuss Honeywell BS864-2 22mm possible to replace head without draining? in the Central Heating Forum area at Plumbers Forums

N

NIgel Hawcroft

I may have a faulty motorised valve head on a Honeywell BS864-2 22mm is it possible just to replace the head or must it be the whole fitment? Do you need to drain the tank to fit a new head on the valve?
Thanks
 
Does the head have a dimple on the top / lid ?
 

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