Friedrich 2007 service manual RM18L30-A, KM18L30-A, KM21L30-A, RM24L30-A, KM24L30-A

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MODELS

KS10L10-A, RS10L10-A, KS12L10-A, KS12L30-A, KS15L10-A, RS15L10-A, RS16L30-A,

RM18L30-A, KM18L30-A, KM21L30-A, RM24L30-A, KM24L30-A

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Contents 2007 Table of Contents Typical Unit Components IntroductionRoom AIR Conditioners Limited Warranty Routine Maintenance Unit Identification 08 L 1Performancedata Receptacle Electrical DataElectronic Controls Functional Component DefinitionsTesting the Electronic Control Error Code Listings Testing the Electronic Control XQ/WS Boards & QME BoardsSealed Refrigeration System Repairs Refrigeration System Sequence of OperationSpecialprocedureinthecaseofcompressor Motor Burnout Hermetic Component ReplacementRotarycompressorspecialtroubleshooting and Service Equipment RequiredMethod of Charging Refrigerant ChargingOvercharged Refrigerant Systems Undercharged Refrigerant SystemsRestricted Refrigerant System Malfunction of Valve Normal Function of ValveProblem Possible Cause Action Cooling only Room AIR Conditioners Troubleshooting TipsReplace fuse, reset breaker. If repeats, check To equalize before attempting to restart. Instruct Vents on applicable models are in the closed Heat / Cool Room AIR Conditioners Troubleshooting Tips Refrigerant System Diagnosis Heating Troubleshooting Chart CoolingElectrical Troubleshooting Chart Heat Pump Troubleshooting Chart HeatingSystem Cools When Heating is Desired YESModels RM18L30-A, KM18L30-A, KM21L30-A, RM24L30-A, KM24L30-A SS16L30-A/B, SM18L30-A/B, SM21L30-A/B, SM24L30-A/B Model SL28L30-A SL36L30-B EQ08L11-A ES12L33-A, ES16L33-A, EM18L34-A, EM24L35-A EL36L35-A YS09L10-A, YS09L10-B YS13L33-A, YM18L34-A YL24L35-A RAC-Svc-07