I have recently moved into a house where the kitchen lighting is supplied by 8 x 12 V MR16 halogen lights in a false ceiling.
Three of these do not work, despite testing with working bulbs for the working lights.
I'm assuming the cablings ok with it being in a circuit back to the light switch on the wall. Would there be a transformers somewhere inline between switch and first bulb to take the voltage from 230V down to 12V?
Is it possible that the bulb holders are faulty and can these be replaced?
If you are lucky each light will have its own transformer. Pull a light fitting out of the ceiling and pull its cable with it. You may find a transformer in line. If you have a test meter check the voltage out of the transformer, if this is OK look for a burnt out connection.
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