At work we've got a urinal which has a Cisternmiser Infrared unit fitted before the cistern. The offices were redeveloped and handed over to us in August, so everything is pretty new.
It used to work that as we walked into the toilet and turned on the light, the cistern flushed. I've no idea whether it was the light or the person which triggered the flush, although there is a standard circular PIR type dome on the front, and it says Infrared on the front.
Anyway, recently I've noticed the urinal is getting a bit smelly, and also noticed I've never noticed the urinal flush when I go in - been like this for a good few weeks.
There's a small push button on the top (well, the side as it appears to be mounted on its side) which when pressed does nothing.
It's too high to take a good look at, but I cannot see any wiring going to it, just the 15mm water feed which it is mounted on. There's also an inline valve which is partially open (which I believe hasn't been touched - it's even higher than the Cisternmiser!)
Does anyone know how these things work? Are they connected to the mains, or battery powered etc? I cannot see any wiring, so might it be battery? What might be the reason for it suddenly not working? I haven't checked whether there is any water getting to it (I'm just a software developer here, and without a ladder etc, I can't get to it). Could there be a solar panel under the PIR dome, or is that unlikely (I'm guessing so)? The room's light is turned off after use (we had a problem before at our old offices where Initial fitted a solar powered room deodoriser, not realising the loo's light was off most of the time!)
Any advice? I'm just trying to work out what's wrong, as everything takes ages to get fixed!
Thanks
David