DSB150026 Variable Speed AOC Board Replacements

MODELS AFFECTED: Bryant: 189BNV  288BNV Carrier: 24VNA9  25VNA8 Serial Number(s): 2 Ton units before 11/18/2014 week 47 (4714Exxxxx) 3, 4, 5 Ton units before 1/13/15 week 03 (0315Exxxxx)  SITUATION: AOC Software improvements have been made since the initial product launch to help system’s cooling and heating operation. Self-recovery features and elimination of nuisance fault codes are just two of the features modified in later released software versions. This bulletin will pay dealer $80.00 for repair  SMB140026A Please see below link for complete bulletin  dsb15-0026 AOC Board
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Dealer Service Bulletin DSB140015 Variable Speed Inverter AOC Board

Bryant: 189BNV, 288BNV Carrier: 24VNA9, 25VNA8 Serial Number(s): 2414E to 0115E During a recent factory product audit of the above listed models, it was discovered that the stator heat function was not enabled for units leaving the factory. Disabling of the stator heat function can cause accumulation of refrigerant in the compressor during the off-cycle, which can lead to lack of lubrication and compressor bearing damage.
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