Steam Autoclave Board Repaired-Wax Applied To Microprocessor
In this time I wanted to share with you this “Lessons Learned”. I have been “repairing” a cousin’s Steam autoclave 3 times… Same issue every time: Electronics get crazy caused by a water steam drop on a microprocessor. Which cleaned with a tooth brush and Isopropyl alcohol (IPA)… Then it works properly. The photo below is the autoclave (steam furnace to sterilize products).
But 2 or 3 weeks ahead the issue is present again. I open the housing analyze and a white residue is again present on the bottom side of the microprocessor. Cleaned again and it works for 3 weeks approx. And again the same issue! This time I do something different.
Use the brush, clean with Isopropyl alcohol, let it dry… And light a candle!
Light a candle to apply wax around the microprocessor IC.
This equipment will have always droplets or wet spots.
Wax applied around the microprocessor pins and display’s pins. The idea is to avoid this to accumulate between microprocessor pins. Guess what…? It has been working for 2 months and no issues at all! I hope you like my shared experience!
This article was prepared for you by Francisco Maciel Barba from MacBar Re-Guadalajara, Jalisco, Mexico. Francisco is a Mechanical and Electrical Engineer and owns a shop in repairing SPA Medical Equipment. He has been in this repair line for 15 years and love electronics since 12 years old.
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