MrBoomal Posted November 22, 2009 Share Posted November 22, 2009 I have source 4 pars for my house lights but, often one will go down. So up I go to change the lamp and low and behold with a small twist on the brass knob all is light again. Constantly have this problem, is it just me. ? Link to comment Share on other sites More sharing options...
chrismca09 Posted November 23, 2009 Share Posted November 23, 2009 Never come across anything like that, have you tried ETC's website, I know they have a huge knowledge base on there. Link to comment Share on other sites More sharing options...
Just Some Bloke Posted November 23, 2009 Share Posted November 23, 2009 My guess is you're not using Phillips HPL lamps. Source 4s don't like any other manufacturer, I'm afraid, and they just don't sit in the ceramic properly. Try changing to Phillips lamps and see if the problem goes away. Link to comment Share on other sites More sharing options...
Parser Posted November 23, 2009 Share Posted November 23, 2009 is it just the one source 4 that you have this problem with, or do you have it at random? Link to comment Share on other sites More sharing options...
tokm Posted November 23, 2009 Share Posted November 23, 2009 My guess is you're not using Phillips HPL lamps. Source 4s don't like any other manufacturer, I'm afraid, and they just don't sit in the ceramic properly. Try changing to Phillips lamps and see if the problem goes away.Hmm, never had that problem before.. I've had GE, Ushio, Osram/Sylvania (whatever brand of the month my supplier sends me really) and they've all worked fine, but its something to watch out for though, so thanks. But, my guess would be a fault with the lamp socket.. Possibly the contacts getting corroded for one reason or another or the ceramics cracked and the pin terminals have moved slightly and the tap/touch of the brass knob jolts them back into place.. Easy thing to do is to just have a look to see if there's any residue from arcing or some other 'gunk' or to see if there's any other visible damage to the socket.. HTH, T Link to comment Share on other sites More sharing options...
Parser Posted November 23, 2009 Share Posted November 23, 2009 My guess is you're not using Phillips HPL lamps. Source 4s don't like any other manufacturer, I'm afraid, and they just don't sit in the ceramic properly. Try changing to Phillips lamps and see if the problem goes away.Hmm, never had that problem before.. I've had GE, Ushio, Osram/Sylvania (whatever brand of the month my supplier sends me really) and they've all worked fine, but its something to watch out for though, so thanks. But, my guess would be a fault with the lamp socket.. Possibly the contacts getting corroded for one reason or another or the ceramics cracked and the pin terminals have moved slightly and the tap/touch of the brass knob jolts them back into place.. Easy thing to do is to just have a look to see if there's any residue from arcing or some other 'gunk' or to see if there's any other visible damage to the socket.. HTH, T That was my initial thought too, although I was uncertain if the OP meant that a particular fixture has this problem, or fixtures at random, in which case it's be rather unlikely that they all had a loose connection, unless they were all damaged in trasportation. Link to comment Share on other sites More sharing options...
tokm Posted November 23, 2009 Share Posted November 23, 2009 Fair point... Still stand by my comments on personal experience with different lamp brands, but understand people can have different experiences depending on a number of factors. And if the s4s are all of the same age and have had the same number of hours use, IMO its not too hard to believe the lamp sockets could all be suffering from 'aging' and thus explains the intermittent nature of the issue. Lets see what he says eh. T Link to comment Share on other sites More sharing options...
Just Some Bloke Posted November 24, 2009 Share Posted November 24, 2009 My guess is you're not using Phillips HPL lamps. Source 4s don't like any other manufacturer, I'm afraid, and they just don't sit in the ceramic properly. Try changing to Phillips lamps and see if the problem goes away.Hmm, never had that problem before.. I've had GE, Ushio, Osram/Sylvania (whatever brand of the month my supplier sends me really) and they've all worked fine, but its something to watch out for though, so thanks.Certainly we have some Parnels (very similar to an S4 Par) which have played up with GE and Ushio lamps but been no problem at all since going over to just Phillips lamps, and I've heard of others who've had the same problem. Could just be a certain batch, I suppose. Link to comment Share on other sites More sharing options...
MrBoomal Posted November 24, 2009 Author Share Posted November 24, 2009 It is more or less all of them. Only last week I thought 3 had gone on one circuit, but when I just began to unscrew the housing they each came back to life again. I usually use GE lamps, Never have any problems with S4's. Just the pars. They all look fine on visual inspection. No obvious signs of arcing or corrosion. Strange. Link to comment Share on other sites More sharing options...
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