Hallogen Spotlights Cut Out

I presume this is a low voltage setup?

 

Transformer overloaded and sulking maybe

 

I don't know either..

 

I dont know, I think its mains voltage <

Remove a bulb and have a look!!!

 

Sounds like LV lamps, if half of them in the kitchen are cutting out, then there will probably be 2 transformers. Remove the lamps that are turning off and you should find a transformer close to one of them, it's either overloaded or goosed.
Same in the breakfast room if your having the same problem.

 

12v indicates Elv therefore a transformer or two is present within the circuit, usually as previously suggested within a foot of one of the lights, you may need to remove all lights to find it, perhaps lift some of the insulation if possible it'll be there somewhere.

 

Sounds like the transformer(s) is/are overheating, especially as in a flat roof with insulation. Could be that the transformer is not rated for the wattage of lamps (bulbs) that are installed, or lack of ventilation or faulty transformer. It's almost definitely transformer related.

BB

 

not enough room between celing & base of roofing to remove any insulation<

It's not surprising how many people are having their 'flat roofs' converted to a real roof, good job no more can be built!

 

You could be overloading the transformer.

Really need to find out:

1. The rating of your transformer
2. How many fittings are on the transformer/each terminal of the transformer

Overheating or a generally borked transformer does seem the likeliest culprit though.

 

Are they dimmable? Could be a faulty dimmer.

 

At the end of the day the thermal trip is doing its job and switching the lights on and off. As the chap said half of the lights in the kitchen are affected. Three questions..

1..is the transformer overloaded as already suggested way back thus causing the trip situation.Half of the lights how many is that?..2/3/4 etc.

2..insulation covering ****** and also possible void implications?

3..a faulty ******?