Domestic Stabiliser Dead
This domestic stabiliser belongs to me,being use to protect kitchen deep freezer. I went to kitchen and noticed no lit segmented leds that show input and output voltages. So carried it to work desk,opened case cover and did primary inspection.There and then I discovered a charred pcb part close to a/c output and output replay,infact the output wire has disengage from board.
Then I did general checks on some components to ensure no bad one lurking somewhere,so discovered this swollen cap which was replaced.
Since part of the pcb is charred,leaving a small space,there is need to fill this gap up with breadboard.So I did cut a small breadboard out, glue it to this portion with JB Wield glue,leave it overnight to harden well( this glue attain its maximum hardness after 72 hours and can withstand 200C temperature).Then removed bad relay and replaced it with good one.( surprisingly when i tested the burnt relay with 12v dc voltage, it still click).
The a/c output wire seems to have oxidised some inches backward,this also I replaced (this might be the cause of the burnt),solder it to the relay output pin,also use glue to fasten it more.
Assemble everything back together and plug it into a/c wallsocket…wow stabiliser came back to life once again.
This is the finished repair work.
This article was prepared for you by Imoudu Onwumah from Nigeria. He is 62 years old and has just 3 years experience in electronics repairs. I started career in hotel industry as a chef, but then I was doing repairs only in electrical repairs as a hobbyist. In 2018, I decided to learn about electronics which through Jestine’s electronics e-books and holding my hand, am an electronics techie today.
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Note: You can read his previous article on Microwave Oven Breakdown
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