Bathroom lights stopped working

[fixit4u]

Hi folks,
i have just called at my sisters as her bathroom low-voltage down-lights have stopped working, she has 6 down lights in total 3 work and 3 have stopped working, i have placed my volt stick on the lights and they all have power present to them and have tried new lamos in each one but they still do not come on with the other three? Any ideas where to start looking next ? I have had a quick look at the 2 transformers and each seems to have power coming from them.
Any advice appreciated-thanx.

 

[telectrix]

if the 3 non workers are supplied from the same transformer., there's your answer. or there's a possibility of 3 burnt connections on 3 lamp holders.

 

[Specialist]

Hi folks,
i have just called at my sisters as her bathroom low-voltage down-lights have stopped working, she has 6 down lights in total 3 work and 3 have stopped working, i have placed my volt stick on the lights and they all have power present to them and have tried new lamos in each one but they still do not come on with the other three? Any ideas where to start looking next ? I have had a quick look at the 2 transformers and each seems to have power coming from them.
Any advice appreciated-thanx.

What Voltstick do you use that lights up on 12v ?

 

[telectrix]

one that picks up induced voltage. take your pick. ( or your stick )

 

[fixit4u]

hi, the volt stick is a megger, is the fault the supply transformer even tho the lights are showing power to them ? i took the lamps out and placed the stick on the wiring and it shown power? can it still do this if the transformer needs replacing ? the 3 down lights are all from the same transformer.

cheers.

 

[fixit4u]

the 3 lights are all on the same transformer but the supply to each shows live with the stick as does the cable from the transformer but can it do this even tho the transformer is the problem ?
ccheers

 

[Specialist]

hi, the volt stick is a megger, is the fault the supply transformer even tho the lights are showing power to them ? i took the lamps out and placed the stick on the wiring and it shown power? can it still do this if the transformer needs replacing ? the 3 down lights are all from the same transformer.

cheers.

Do you mean a Voltstick non contact tester or a 2 Pole tester ? If it's a non contact tester then it won't pick up the 12v output & as tel said it's just picking up induced a/c from adjacent mains wiring. Also if it's a Voltstick this only shows that you have a live feed & does'nt prove that the Neutral is good.

 

[GLENNSPARK]

you may be able to get current to the lamp......what about the return path though........

 

[timo1]

Don't trust your volt stick!!! I have done the same and they can really throw you off track as they sometimes pick up a source from somewhere else. Check that someone hasnt bodged the lights by just using one transformer when it should be one per light as well...

 

[Specialist]

Check that someone hasnt bodged the lights by just using one transformer when it should be one per light as well...

As long as you don't exceed the Wattage rating on the Transformer then you can put more than 1 light on each.

 

[Goody]

Hi folks,
i have just called at my sisters as her bathroom low-voltage down-lights have stopped working, she has 6 down lights in total 3 work and 3 have stopped working, i have placed my volt stick on the lights and they all have power present to them and have tried new lamos in each one but they still do not come on with the other three? Any ideas where to start looking next ? I have had a quick look at the 2 transformers and each seems to have power coming from them.
Any advice appreciated-thanx.

I came across a similar situation recently and the stick indicated power on the circuit but the lights didn't work. Realised there was no return path, replaced the transformer and the circuit came to life. Give it a go, replace the transformer. Best of luck!

 

[fixit4u]

my sister has been in the house for 10yrs and has only replaced the odd lamp when needed, there is 3 lamps from one transformer 65w and the other transformer is 60w rated feeds the other 3 lamps, only 3 light up from one of the transformers the others have stopped working but holding a voltage detector on each feed comes live when the switch is turned on so thought the transformers were ok, we don,t have much cash so didn,t want to start replacing transformers etc untill know what the problem is, was thinking of trying the transformer first but this is around £16-£18 .

 

[GLENNSPARK]

we had a scenario like this a while back....but in this case the thermal cutout within the tranny was constantly bringing the lamps off....then in a while back on they came.....turned out the origional installers had joint boxed a load of lamps off just 2 trannys..........

 

[fixit4u]

thank-you goody think that,s the way forward, cheers mate

 

[Specialist]

Your Voltstick Non contact tester can't tell you if you've got an outut from the Transformer only A multimeter or 2 pole tester will do this. If you can get at both transformers easily. you could try swapping them to prove the transformer is faulty.