Mitsubishi Electric PURY-M200YNW-A1 Service Handbook page 9

CONTENTS
Chapter 7 Troubleshooting Using Error Codes
7-1 Error Code and Preliminary Error Code Lists ..................................................................................... 1
7-2 Error Code Definitions and Solutions: Codes [0 - 999]....................................................................... 8
7-3 Error Code Definitions and Solutions: Codes [1000 - 1999]............................................................. 11
7-4 Error Code Definitions and Solutions: Codes [2000 - 2999]............................................................. 15
7-5 Error Code Definitions and Solutions: Codes [3000 - 3999]............................................................. 24
7-6 Error Code Definitions and Solutions: Codes [4000 - 4999]............................................................. 26
7-7 Error Code Definitions and Solutions: Codes [5000 - 5999]............................................................. 48
7-8 Error Code Definitions and Solutions: Codes [6000 - 6999]............................................................. 61
7-9 Error Code Definitions and Solutions: Codes [7000 - 7999]............................................................. 81
7-10 Unit Error Code Definitions and Solutions: Codes [Er91 - Er99] ..................................................... 90
Chapter 8 Troubleshooting Based on Observed Symptoms
8-1 MA Remote Controller Problems .......................................................................................................... 1
8-2 ME remote Controller Problems ........................................................................................................... 5
8-3 Refrigerant Control Problems ............................................................................................................. 10
8-4 Checking Transmission Waveform and for Electrical Noise Interference ...................................... 15
8-5 Pressure Sensor Circuit Configuration and Troubleshooting Pressure Sensor Problems .......... 18
8-6 Troubleshooting Solenoid Valve Problems ....................................................................................... 22
8-7 Troubleshooting Outdoor Unit Fan Problems ................................................................................... 23
8-8 Troubleshooting LEV, FCV Problems ................................................................................................ 24
8-9 Troubleshooting Problems with Major Components on HBC.......................................................... 34
8-10 Troubleshooting Inverter Problems ................................................................................................... 40
8-11 Control Circuit ...................................................................................................................................... 57
8-12 Measures for Refrigerant Leakage ..................................................................................................... 66
8-13 Parts Replacement Instructions (Outdoor Unit) ................................................................................ 68
8-14 HBC Maintenance Instructions (Applicable to main and sub HBCs) ............................................ 127
8-15 Main-HBC Maintenance Instructions ................................................................................................ 138
8-16 Sub-HBC Maintenance Instructions ................................................................................................. 177
8-17 Troubleshooting Problems Using the LED Status Indicators on the Outdoor Unit ..................... 182
Chapter 9 USB Function
9-1 Service Overview.................................................................................................................................... 1
9-2 Operation Data Collection and Storage Functions (Outdoor unit) ................................................... 4
9-3 Software Rewrite Function on the USB (Outdoor unit, HBC) ............................................................ 8
9-4 Maintenance LED Display and Troubleshooting ............................................................................... 10
Chapter 10 LED Status Indicators
10-1 LED Status Indicators (Outdoor unit) .................................................................................................. 1
10-2 LED Status Indicators (HBC) ................................................................................................................. 4
10-3 LED Status Indicators Table.................................................................................................................. 6
HWE21050 GB