I agreed to take a look at shop sign for a shopkeeper friend. The fitting apparently stopped working form one day to the next. I have checked the following.
1) 240V getting to the fitting.
2) Both starters work fine in another fitting
3) Buzzed all the way round wiring loop with tubes/starters out, and no discontinuities.
4) Owner has bought new tubes
When nothing worked after all these tests, I recommended he pick up a replacement ballast. The original ballast was model; Tridonic ATCO EC 36 A502K. These are discontinued, so the local supplier recommended an alternative which I have fitted.
I'm wondering now if it's possible the tubes, may be a different spec. I'm assuming the recommendation of the ballast is correct, and that the ballast wasn't faulty when it arrived. Are there any addtional tests I can do on the circuit with prety standard multi-meter?
Hoping someone can give some more pointers to help with this.
1) 240V getting to the fitting.
2) Both starters work fine in another fitting
3) Buzzed all the way round wiring loop with tubes/starters out, and no discontinuities.
4) Owner has bought new tubes
When nothing worked after all these tests, I recommended he pick up a replacement ballast. The original ballast was model; Tridonic ATCO EC 36 A502K. These are discontinued, so the local supplier recommended an alternative which I have fitted.
I'm wondering now if it's possible the tubes, may be a different spec. I'm assuming the recommendation of the ballast is correct, and that the ballast wasn't faulty when it arrived. Are there any addtional tests I can do on the circuit with prety standard multi-meter?
Hoping someone can give some more pointers to help with this.