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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.

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Blown Adaptors

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

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The Wiring Diagram

 

Parents
  • 0
    All,

    From info so far (I do not have BBQ), it seems the LED lights are 12V AC, hence you effectively need a step down transformer.


    Given that it is to power LED lights, a 3A fuse would have been sufficient. The purpose of the fuse is to protect equipment (transformer/adaptor) and by having 13A fuse, you blow the equipment but not the fuse!


    BBQ is a "dirty environment" (from electrical / electronics viewpoint) and all wiring has to be shielded since BBQ is hot (temp wise), humid ( BBQ meat or veg) plus smoke.


    IMHO, it looks like faulty shielding (could even be due to excessive cleaning!) leading to short-circuit which would draw excessive current and blow out your AC/AC step down converter since the 13A plug fuse would not blow out.


    Just saying, ...

    Best wishes.
Reply
  • 0
    All,

    From info so far (I do not have BBQ), it seems the LED lights are 12V AC, hence you effectively need a step down transformer.


    Given that it is to power LED lights, a 3A fuse would have been sufficient. The purpose of the fuse is to protect equipment (transformer/adaptor) and by having 13A fuse, you blow the equipment but not the fuse!


    BBQ is a "dirty environment" (from electrical / electronics viewpoint) and all wiring has to be shielded since BBQ is hot (temp wise), humid ( BBQ meat or veg) plus smoke.


    IMHO, it looks like faulty shielding (could even be due to excessive cleaning!) leading to short-circuit which would draw excessive current and blow out your AC/AC step down converter since the 13A plug fuse would not blow out.


    Just saying, ...

    Best wishes.
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