Hi,
Thanks for replying .
I have read through the articles referencing Sanyo and Promethean on here - they show that a lot of people have this issue but no one has a conclusive fix. Several posts state they were returned for repair under warranty, but do not say what the fault was. We are out of warranty so not an option for us.
These were the results following the suggested troubleshooting steps:
1. The Projectors have been off over the weekend (unplugged), I started them this morning. One of the projectors lamps did come on and I was able to check and reset the lamp hours (it showed 738 hrs Total). Unfortunately, after I turned it off (unplugged) and on again it started exhibiting the same fault. The other one displayed the same fault immediately when powered on.
2. When powered on, the bulb lights briefly from dim to bright, it seems to go into standby when the bulb gets to its brightest. I have a couple of replacement bulbs which I have tried, but still the same fault. One of the projectors did start correctly on its original bulb (see #1 above) and I managed to reset the lamp hours, but the fault returned after powering off, unplugging, then re-plugging and powering on again.
3. Lamp life was under 3000 (see #2 above) and has been reset, still the same fault.
4. I have checked the Thermal Cutout - its accessible via a hole in the plastic casing located on the bottom of the XU41. I've pushed down on it with moderate pressure and it does not seem to have been tripped. My understanding is that if this had been tripped there would be no AC Power, so the unit would not even light up?
Any other suggestions would be greatly appreciated, as a cash strapped school we need all the help we can get!
Kind Regards,
YYo
