EDIT: Once off - if the bayonet fixing retracts and locks in the retracted position within the TRV capping housing - how do I get the two fixings to return back out again? As it is, the two TRVs I've taken off are locked in the position of being able to come off - so they would just "sit" on the pipework/valve pin and you could just lift the TRV capping off without twisting anything. So whgat do I do now?
Cold radiator working again, only problem now is getting the TRV backn on without it locking like it did last time when it locked once put back on and I had to use a screwdriver to prize it off.
Its a Danfoss with bayonet fixing and the base knurled ring twists while holding the fixed plain ring just above it. Now I've got it off the two rings have locked and so has the bayonet fixings which are locked in the retracted position. I assume there's a simple way to ensure I put it back on correctly.
Cold radiator working again, only problem now is getting the TRV backn on without it locking like it did last time when it locked once put back on and I had to use a screwdriver to prize it off.
Its a Danfoss with bayonet fixing and the base knurled ring twists while holding the fixed plain ring just above it. Now I've got it off the two rings have locked and so has the bayonet fixings which are locked in the retracted position. I assume there's a simple way to ensure I put it back on correctly.