Fan on Durst CLS 450 colorhead ?

[henpe]

Dear all,

I have just bought a Durst CLS 450 colorhead (+ TRA450 power supply). I expect the fan to go on as soon as I power on the head, but it don't. When is the fan supposed to go on?

There is no lamp in the head and I have not yet had the oppertunity to replace with a new bulb. Does the fan actually need a lamp to run; Is the fan perhaps controlled by the lamp actually drawing current?

Anyone with experience of a CLS 450 thant can help me out!?

Regards
Henrik

 

[henpe]

Case closed!

It turned out the fan was mounted in a position that was slightly off, enough to be clamped against the chassis in such way that the fan jammed and could not rotate freely. It is now fixed!

 

[darkroommike]

Good call and good troubleshooting, buy more than one bulb, much better to have a spare and not need it than to need a spare later and find out the bulb i either on backorder or no longer available (I have 6 for each of my enlargers, bought as lots on Ebay, tested and then put away, so I'm good to go-I also have a stash for my spotlight and Norman strobes).