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HVAC Dim Display repair

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Old 03-21-2019, 06:40 PM
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coletrickle35
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Going for broke looks like a bad spot
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Old 03-21-2019, 06:41 PM
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Absolutely Blown Away I cannot believe that worked!
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Old 03-21-2019, 06:49 PM
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SilverC54me
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Good job. The solder joints at those resistors just need heated up to reconnect them.

Gary
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Old 03-21-2019, 07:16 PM
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Originally Posted by coletrickle35

You got to be kidding me. Nobody said these things are the size of match heads!
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Old 03-21-2019, 08:24 PM
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Originally Posted by SilverC54me
I have been repairing the dual zone HVAC controllers for friends over the last 12 years or so. Just did one for a guy that a previous owner did a bad DIY repair on. This person globed the solder on top of the 241 resistors. I had to do some trace repair/bypass to compensate for damage.


Before cleaning and repair.


After cleaning and repair.

If you have never soldered delicate electronics before, please take it to someone that has.

Gary
Thanks again without your post I probably would have put it off another 6 months and now it's fixed!
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Old 03-21-2019, 11:25 PM
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Can't believe how nice and bright this is!
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Old 03-22-2019, 11:54 AM
  #27  
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Originally Posted by UM Rebel
241 resistors are obsolete. Some of mine had fallen off the board and got lost. Had to do some substitution.


What did you use? It's almost impossible to see them in the picture. Do you have a link?
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