Mitsubishi Electric PUHY-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]............................................................. 10
7-4 Error Code Definitions and Solutions: Codes [2000 - 2999]............................................................. 14
7-5 Error Code Definitions and Solutions: Codes [3000 - 3999]............................................................. 23
7-6 Error Code Definitions and Solutions: Codes [4000 - 4999]............................................................. 26
7-7 Error Code Definitions and Solutions: Codes [5000 - 5999]............................................................. 50
7-8 Error Code Definitions and Solutions: Codes [6000 - 6999]............................................................. 61
7-9 Error Code Definitions and Solutions: Codes [7000 - 7999]............................................................. 83
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 ................................................................................... 24
8-8 Troubleshooting LEV, FCV Problems ................................................................................................ 25
8-9 Troubleshooting Problems with Major Components on Hydro unit................................................ 34
8-10 Troubleshooting Inverter Problems ................................................................................................... 40
8-11 Control Circuit ...................................................................................................................................... 59
8-12 Measures for Refrigerant Leakage ..................................................................................................... 69
8-13 Parts Replacement Instructions ......................................................................................................... 71
8-14 Hydro Unit Maintenance Instructions............................................................................................... 120
8-15 Troubleshooting Problems Using the LED Status Indicators on the Outdoor Unit ..................... 134
Chapter 9 USB Function
9-1 Service Overview.................................................................................................................................... 1
9-2 Operation Data Collection and Storage Functions ............................................................................. 4
9-3 Software Rewrite Function on the USB................................................................................................ 8
9-4 Maintenance LED Display and Troubleshooting ............................................................................... 10
Chapter 10 LED Status Indicators on the Outdoor Unit Circuit Board
10-1 LED Status Indicators (Outdoor unit) ................................................................................................... 1
10-2 LED Status Indicators (Hydro unit)....................................................................................................... 4
10-3 LED Status Indicators Table.................................................................................................................. 5
HWE18130 GB