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Help please with climate control module 900 1994

posted by  spook on  Sat May 18 19:11 CST 2013
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last visit: Fri Oct 24 08:06 CST 2014
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Dear vigilante,

Hope you're well. I concur: if there's a "dry" joint - where the solder never bonded properly - then there's no alternative, but to remove the failed solder, prep the surface carefully, and re-solder.

On these MCC units, the solder joints develop micro-cracks, as the solder heats and cools repeatedly, over many years. Re-flowing the solder, closes the micro-cracks, and current flows.

Your comments as to the correct method to apply solder - witout overheating the board - are most helpful and should go into the site's FAQs.

Yours faithfully,

Spook






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New Help please with climate control module [900][1994]
posted by  Erwin  on Wed May 15 18:03 CST 2013 >


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