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manual abstract
Heat sink installation error 4. Clogging of hear sink cooling duct 5. IPDU P.C. board error (TH sensor error) [P12] Indoor fan motor error 1. Cabling error of fan motor connector 2. Fan motor error 3. Indoor P.C. board error 83 Auxiliary code : 01: Compressor 1 side 02: Compressor 2 side Correct wiring such as cable to compressor or connector connection. Is power voltage normal?* Is indoor fan normal? s there no clogging of heat sink cooling duct? Is screw between IPDU and heat sink loosened? Check IPDU P. C. board. Is wiring of IPDU normal? Correct power line. Check fan and fan motor. Tighten screws. Correct clogging. * 380– 415V ± 10% YES YES YES YES YES NO NO NO NO NO Check code name Check code name Cause of operation [P10] Indoor overflow error 1. Float SW operation error 2. Drain pump operation error 3. Clogging of drain pipe 4. Indoor P.C. board error Auxiliary code : Indoor address with trouble Does float SW operate? Is float SW connector (Indoor control P. C. board CN34) connected normally? NO Correct connector connection. YES Is wiring normal? NO NO Check and correct wiring. YES YES Check indoor P. C. board. Failure Replace NO Is power supply to drain pump normal? NO Does drain pump operate? Check indoor P. C. board. Failure Replace YES YES Replace drain pump, Check drain pipe, etc. and check cabling. • Check there is 380– 415V voltage of 1-3 pin of CN68 on indoor P. C. board. Turn off power supply. Correct connector connection. Check indoor P.C. board (MCC-1402). Failure ® Replace Is resistance value at motor side of fan motor connector CN334 on indoor P.C. board (MCC-1402) correct? * 2 Is resistance value between each phase at motor side of fan motor connector CN333 on indoor P. C. board (MCC-1402) correct? * 1 Is there connection error or disconnection on connector CN333, CN334 of indoor P. C. board (MCC-1402)? Is output of indoor fan motor position detective signal correct? * 3 Does fan turn without trouble when turning it with hands? Remove connectors CN333 and CN334 on indoor P. C. board (MCC-1402). * 2 Check resistance value of fan motor position detective circuit. • Is not winding 1 (Yellow lead) to 4 (Pink lead) opened/shorted? ® Resistance should be 5 to 20k W* 3 Check fan motor position detective signal. • Measure voltage with tester between CN334 1 and 5 on indoor P. C. board (MCC-1402) under condition of CN333 and CN334 installed and power-ON. ® Turn fan slowly with hands so that pin voltage fluctuates between 0 and 5V. • Between 4 and 5: 5V * 1 • Is not winding 1 (Red lead) to 3 (White lead), 3 (White lead) to 5 (Black lead), 5 (Black lead) to 1 (Red lead) opened/shorted? ® Resistance value should satisfy the follows. • Is not grounded between cabinet and 1, 3, 5? ® Should be 10 W or more Replace indoor fan motor. Replace indoor fan motor. Replace indoor fan motor. Replace indoor fan motor. YES YES YES YES YES NO NO NO NO NO CN333 CN334 * Detectable in model with DC fan motor 4-way Air Discharge Cassett...
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