Table Of Contents - Midea MSMBB-12CRDN1-MP0W Service Manual

Table of Contents

Table Of Contents2
Safety Precaution3
Warning3
Part Names6
Model Names Of Indoor/Outdoor Units6
Part Names Of Indoor/Outdoor Units7
Dimension8
Indoor Unit8
Outdoor Unit10
Refrigerant Cycle Diagram11
Printed Circuit Board Connector Wiring Diagram Of Outdoor Unit12
Installation Details14
Wrench Torque Sheet For Installation14
Connecting The Cables14
Pipe Length And The Elevation14
Installation For The First Time15
Air Purging With Vacuum Pump15
Air Purging By Refrigerant15
Adding The Refrigerant After Running The System For Many Years16
Procedure When Servicing The Indoor Unit Refrigeration Circuit16
Refrigerant Charging18
Discharge The Refrigerant18
Evacuation After Servicing The Outdoor Unit Refrigeration Circuit18
Operation Characteristics20
Electronic Function21
Abbreviation21
Display Function21
Wifi Control Display(Optional)21
Main Protection22
Open Condition22
Indoor Fan Delayed Open Function22
Compressor Preheating Functions22
Operation Modes And Functions23
Fan Mode23
Indoor Fan Running Rules23
Cooling Mode23
Auto-Mode24
Drying Mode24
Auto-Restart Function24
Forced Operation Function24
Point Check Function26
Troubleshooting28
Electrolytic Capacitors28
Indoor Unit Error Display29
Outdoor Unit Error Display30
Diagnosis And Solution33
Eeprom Parameter Error Diagnosis And Solution33
Indoor Pcb33
Outdoor Pcb(18K Model)33
Indoor / Outdoor Unit's Communication Diagnosis and Solution34
Zero Crossing Detection Error Diagnosis And Solution36
Fan Speed Has Been Out Of Control Diagnosis And Solution(E3)37
Indoor Or Outdoor Dc Fan Motor38
Dc Motor Voltage Input And Output38
Outdoor Dc Fan Motor38
Indoor Ac Fan Motor38
Refrigerant Leakage Detection Diagnosis And Solution(Ec)41
Overload Current Protection Diagnosis And Solution(F0)42
Over Voltage Or Too Low Voltage Protection Diagnosis And Solution(P1)47
High Temperature Protection Of Compressor Top Diagnosis And Solution48
Main Parts Check50
Temperature Sensor Checking50
Temperature Sensor Resistance Value Table51
Compressor Checking54
Ipm Continuity Check55
Pressure On Service Port56
Cooling Chart56
Heating Chart57
Disassembly Instructions58
How To Remove The Front Panel58
How To Remove The Electrical Parts59
How To Remove The Evaporator60
How To Remove The Fan Motor61