Index

MITSUBISHI HEAVY INDUSTRIES - PAC SERVICE MANUAL

MAINTENANCE DATA	2
ERROR CODES	4
PCB INDOOR UNITS	8
ERROR DISPLAY & REMEDY CHART	12
PCB OUTDOOR UNITS	22
ERROR DISPLAY – OUTDOOR UNIT	25
OPERATIONAL DATA CHECK – WIRED CONTROLLER	35
REMOTE CONTROL – WIRED	36
- SETTING FUNCTIONS	37
ERROR DISPLAY – WIRELESS CONTROL	43
REMOTE CONTROL WIRELESS	44

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Contents

FDA Series Split Systems FDA Series Multi Systems Page Index Evacuation Evacuation procedure Cation Circuit Refrigerant chargingHigh side Low side Indi E10 E16 E28 Indoor unit LED Outdoor unit LED Selfdiagnosis function Check Indicator TableIndoor unit side No-indication Outdoor unit side Display sequence of error, inspection display lamp Timing of error detectionWait Indoor unit Outdoor unit Recording and reset of errorProcedures of trouble diagnosis Error diagnosis procedures at the indoor unit side Change by the jumper wire Control change switch SW5, SW9, SW10Parts layout on the indoor unit PCB Model FDT series Model Fden series Model Fdkn series Drain motor Model Fdur series Indoor unit Outdoor unit Check method when the error code is display Approximately Remote controller wire Is removedReplacement indoor Unit control PCB Red LED Time flash Stays OFF Green LED Keeps flashing 151~251 Red LED301~601 Green LED Stays OFF or Lights Only case of FDTCases of other than FDT Red LED Stays OFF Error display e6 Error display Detective return air thermistorDefective indoor unit heat exchanger thermistor Indoor unit heat exchanger temp. ˚C Error display Heating overloadAbnormal Temperature Detection Error display Drain trouble Only case of FDTA501, 601 types Error displayError display e16 Fan motor abnormalities E10 Only case of 301 type Only case of Fdkn Only case of 151~251 typesDisplay conditions Within a period of 1 hour Remote controller therm Replacement Detective re Error display e28 Directive remote controller thermistorAre characteristics Detectivie remote controller PCB Error diagnosis procedures at the outdoor units side Change by the JA3 Change by the jumper wireFunction of DIP switches SW5 Usually all turned OFF Parts layout on the outdoor unit PCB FDCVA151~251 type FDCA301~601 type Overcurrent Setting Power transistor module Error display Communications error during operation Power supply phases reversed Only case of 301~601 typeE32 E33 Inverter primary current abnormal Only case of 151~251 typeCompressor overcurrent trouble Only case of 301~601 type E34 Error display e35 Cooling overload operation Error display e36 Discharge temperature error Abnormal Temperature DetectionPressor is stopped 80 C Error display e39 Defective discharge pipe thermistorUtes 100 Error display e40 63H1 operation Only case of 301~601 type Open phase at L3-phase of 52C primary sideError display e42 Current cut Only case of 151~251 type Inverter over-voltage trouble Only case of 151~251 type Error display e52 52C Abnormal Only case of 301~601 typeE47 E48 E57 Insufficient refrigerant volume Malfunction. If Did it improve? Replacement CompressorCould be causing Refrigerant circuit Is the power Power transistor module including drive circuit check method Check abnormal operation data with the remote controller Pull the cover downward to open it Remote controller Wired remote controller Indoor unit functions I/U Function Remote controller unit functions When Function is selected Function setting method Press the ON/OFF button When I/U Function is selected Changing the remote controller’s temperature setting range Checking Operation Data Cooling Test Operation ProcedureCanceling the Cooling Test Operation Starting the Cooling Test Operation Heating Setting SW5-1, SW5-2 on-siteTest run Test run method Checking the state of the unit in operation Fdkn Series Indication board Fden Series Wireless remote controller Page NATIONAL, State and Local Codes Installation of this equipment must comply with all

Hunter Fan R410A manual Index

Models: R410A

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