I recently (months) got a set of four Concept 2's
and I just started having trouble with one of them.

The lamp just shuts down. Everything else
seems to work? If I turn the unit off and back on
it will come on and appear to work normal. Also
this same unit seems to be off one pole on the
up/down stepper motor after it calibrates? If I
just push the mirror back until it slips to the
next pole it will be OK until it calibrates
again.???

Anyone else had any trouble like this??

Gary

Check the fan! I had the same lamp problem with a moving head and next thing I knew the entire plastic part had melted beyond repair.