Cooker Hob bulb blown - replacement wont work

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5 Jul 2015
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Hello

I have a Luxair cooker extractor fan.

It has two bulbs and they went with a bit of a bang yesterday - tripped the circuit in the kitchen too.
After I reset it and replaced the bulbs the new bulbs would not work...
I examined the blown bulb and it was charred/dark towards the base.

I examined the holder and there is residue but nothing looks melted or fused - both bulb housing (screw in type - SES) look OK.

The fan still works fine - just not the bulbs. Any ideas?

Thank you
 
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Cooker hood manufacturers seem to delight in unnecessarily complicated and flaky ways to control simple things like lights and fans.

If you are sure that the lamps work (you've tried them in something else?) then either the holders are damaged in ways you can't see, or no power is getting to them, and that could be because of damage further upstream, or an internal fuse, or...

You'd have to start tracing and testing, and that's not something you should do unless you are very sure you know what you're doing.

Might be worth asking in the Appliances forum - could be that this is a known problem with this hood.
 
The charring could be enough to stop the thread making a good enough contact.

Might also be a fuse in there somewhere for the lights
 
The bulbs were brand new and for both not to work I did assume the that there was another issue...I shall try them elsewhere just to be sure.

The charring was on the plastic part of the holder - the metal contact looked fine (but of course there could still be damage)

I also traced the wire back from the bulb holder assembly and it goes direct to the switch panel which controls the fan speed and the light - no fuses in between.

If the bulbs do work elsewhere then I'm flummoxed! Might have to try the Appliances forum as suggested.

Thanks for reponses.
 
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Can you test that power is getting to the lampholders and are you also screwing the lamp in enough to make good contact, sometimes the live contact within the holder does not connect well and needs tweaking a little. If lampholders is damaged that too requires replacing.
 
I have no idea how to test if power is getting to the lamp holders - I have tested one bulb in a lamp and it works fine.
I have screwed in the bulb into the holder which isn't charred and still no joy (the charring is on the plastic part of the holder and not by the metal contacts).

If there is an easy and safe way for me to test if power is getting to the lamp holders, please let me know.

Thanks
 
As is being said, the contacts in the bulb holder have probably been cooked. Switch off at mains, get a small file, sharp knife, maybe even try a nail file & clean the contacts.
 

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