820-3115 green light, then replaced ISL 625 and now fan spins for 2 seconds

kevinklinkmuller

New member
Hi there!

have 820-3115 that had corrosion around SIL 625 and only showed green light. . now have replaced that and the fan spins tempoarily and DC power supply indicates that it's going to boots but then goes back to dead

help appriciated
 

JohnB8812

New member
Resistance between pins 17/18 and 27/28 of the ISL6259? My bet is liquid messed up your current sensing circuit causing quarter fan spin.
 

kevinklinkmuller

New member
AMAZING!!!! I checked resistance between 17/18 and resistance was crazy high. then i checked continuity between pin 18 and c7050 and it had no connection. ran a jumper and BAM it's back. you helped us pay our rent this month.

THANK YOU
 
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