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Blown AC - AC Adaptor

Former Community Member
Former Community Member

 

I hope you can help me.

I have a Broil King BBQ which has 3 under lid lights as well as 9 LED lights on the dials.

 Now in the 4 years I have owned this BBQ I have replaced 4 AC -AC Adaptors, all supplied by Broil King.

The adaptors they send all blow from inside out, and I have attached the images.

Some of you have probably seen something like it before and immediately have an idea as to why.

My thoughts are, lack of ventilation and they are packed with a black resin.

 The original Adaptor supplied was 1600mA as were 2 replacements, but the latest one to fail was 1700mA

Unfortunately I do not have a working adapter to enable me to measure the current drawn, but I do remember taking the measurement last year and thought the 1700mA was too low.

bd7e35deec616ca6d95b1b76f5c097d6-huge-1.jpg
Blown Adaptors

Something sticks in my head that the current drawn was 2900mA, but I could be wrong.
 

f15a8dcf8cee335e7f6d6386f57501d9-huge-label.jpg
d6fbe53d178cbe6b6d5fc1fef14eee7b-huge-dw.jpg
The Wiring Diagram

 

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  • 0

    AlanShaw: 
     

    Legh, this needs to be AC out, I may have this wrong, but I thought Switch Mode Power Supply's were DC out.

    Going back to Mike's idea of a Toroidal Transformer, and he has listed the 80VA version, is there anything to be gained by going up to the 100VA or 120VA version, going from 80VA to 120VA only increases the cost by £4.00

    well it will run cooler if it is over-sized, but you need a bigger box. ? Don't  go too mad.

     If you use a toroidal tranny be aware that the in-rush can be quite something (more than 10 times steady state while the magnetic field is being established) so you probably will need the 13A fuse, not a 3A one, and take care not to form a 1 turn short circuit by bolting through the centre to metal work that then completes an unintended  full turn. Either plastic cable ties or a mushroom post type mount depending on weight, Do not do this - the dotted lineshows the fault path.

    This method is OK though, apart from being American picture

     

     

    Mike

Reply
  • 0

    AlanShaw: 
     

    Legh, this needs to be AC out, I may have this wrong, but I thought Switch Mode Power Supply's were DC out.

    Going back to Mike's idea of a Toroidal Transformer, and he has listed the 80VA version, is there anything to be gained by going up to the 100VA or 120VA version, going from 80VA to 120VA only increases the cost by £4.00

    well it will run cooler if it is over-sized, but you need a bigger box. ? Don't  go too mad.

     If you use a toroidal tranny be aware that the in-rush can be quite something (more than 10 times steady state while the magnetic field is being established) so you probably will need the 13A fuse, not a 3A one, and take care not to form a 1 turn short circuit by bolting through the centre to metal work that then completes an unintended  full turn. Either plastic cable ties or a mushroom post type mount depending on weight, Do not do this - the dotted lineshows the fault path.

    This method is OK though, apart from being American picture

     

     

    Mike

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