Hi all
I'm hoping somebody knows more about this than I do.
We have a standard fluorescent light that has stopped working. I have replaced the tube and starter with known working ones and still light doesnt work.
With the light switch on, I measured 240 volts going into the Choke, but zero volts coming out of the choke.
From this I assumed the Choke was faulty (is this a correct assumption) Also I took out the Choke and no current passes through it using an Ohmmeter/ Multimeter connected across the 2 terminals. Again I figured the Choke must be faulty / open circuit from this (is this correct?)
I then replaced the 40W Choke with a similar thing from an old fitting called a Ballast hoping this would fix the light. It didnt - although for some unknown reason the light did come on for about 5 minutes then died after putting the outer light casing back on for the night???? Now when I switch on, there is a very dim light just at both ends of the tube.
By the way the ballast I put in is 65W (is this important when the old unit was a 40W choke. The light tubes are 40W.)
I am still left wondering if the Choke is faulty, and if it is then why isnt the replacement ballast not working. (Yes I did connect it up the same way)
Thanks for any help and advice (Im surprised this isnt more of a common problem - I couldnt find anyone experiencing this same problem)
Regards Nick