Dell Projector 4320 no service assistance

I bought a dell projector and my bulb blown so i bought a new bulb part number W5RPF. After i got it and installed it work for a few seconds and the projector switch off. I phoned dell to find out if there is a reset or something to do because it switch off. They told me there is nothing.<br> <br> So they replace the projector because it is still under warranty. I took the replacement bulb and test it as well and the same thing happen. <br> <br> I took the bulb back and they replace it and with the new replacement unit it done the same. I went to Dell Head Office in Bryanston. They don't have a repair agent there but there were a person that help me and told me the bulb that Dell supply me is faulty it over heat that is why it switch off. and he gave me a different part number that will work as well YXP3H<br> <br> I got the new bulb and it do the same. I try to get proper support and they cant advice me or help me <br> <br> I getting fed-up with this projector now the bulb is still not sorted and going on for 5 months <br> <br> o Model: Dell 4320<br> o Service tag: 9YLYF22<br> <br>