Carrier Compressors Service Guide

.OBSERVATIONPOSSIBLECAUS EREMED Y6 Low discharge pressureE xcessive water flow through condense rAdjust water regulating valv eSuctionservice valve partially closedOpen the valv eL eaky compressor suction valvesPump down, remove the cylinder head, examine valve sand valve seats. Replace if necessaryWornpiston ringsReplace compreso r7. FloodingImpropersystem piping allows liquid to compressor Correct pipin gD efrost cycle improperly set or not operating correctly Do not allow more than 1/3 of system on defrost a tany time. Verify proper operation of defrost systemD efective or improperly set expansion valveIncrease superheat or replace valv eE vaporator fan failureCorrect problem or replace fa n8. Low suction pressureInsufficientrefrigerant in systemAdd refrigeran tE vaporator fan failureCorrect problem or replace fa n24