No click, but the continuity of the switch is broken if the dimmer is turned to minimum.
I realise that a new dimmer wouldn't cost much, but I prefer to recycle where possible and same materials going to landfill.
I've an old volex white molded switched dimmer switch with no wiring instructions. It is a 240volt AC 400 watt max unit (BS5518) with a code XM 17086-1 in the plastic. There is also a paper label with 'A TS(superimposed) A' within a diamond and ALJG on it. There are four points numbered 1...