Why on a multi light fitting does one lamp always seem to fail prematurely?
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Answers:
It could be that the bulb is at fault. To eliminate this next time it "blows" instead of replacing it with a new one use one of the others that seems to be OK.
If it goes again then the likely cause is that there is a bad connection on that particular leg.
You need to check the fitting to make sure the bulb has good contact.
If that doesn't do it you will need to take down the fitting and check the wiring is sound behind it.
Ensure you switch it off first at the consumer unit by switching off the circuit breaker for that particular lighting circuit.
Hard to say. Maybe one of them has less air flow and runs hotter. I haven't really noticed the problem with my fixtures. It does seem that when one blows, then another will blow within 6 months of the first.
If you are using compact fluorescent lamps,the polarity needs to be correct or it will shorten the life of the lamp.
I had to replace the light when my light had the same problem. If it's always the same bulb, the fixture is bad and has a poor contact. This causes the base to arch and burn out prematurly. Make sure the bulb is snug in the socket before you replace the light.
Its called sods law. One will allways fail before the other. Whats the chance of the failing at the same time!!
there is no reason or logic for this it just happens my advice is not to fit them but bit late for you
try avoiding cheap bulbs sometimes help
number of times i get asked this question makes you wonder if manufacturers know of problem but just dont care
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