Mitsubishi Electric PUHY-P200 Service Handbook page 9

CONTENTS
7-9 Error Code Definitions and Solutions: Codes [7000 - 7999]........................................................... 226
Chapter 8 Troubleshooting Based on Observed Symptoms
8-1 MA Remote Controller Problems ...................................................................................................... 237
8-2 ME remote Controller Problems ....................................................................................................... 241
8-3 Refrigerant Control Problems ........................................................................................................... 245
8-4 Checking Transmission Waveform and for Electrical Noise Interference .................................... 250
8-5 Pressure Sensor Circuit Configuration and Troubleshooting Pressure Sensor Problems ........ 253
8-6 Troubleshooting Solenoid Valve Problems ..................................................................................... 255
8-7 Troubleshooting Outdoor Unit Fan Problems ................................................................................. 257
8-8 Troubleshooting LEV Problems........................................................................................................ 258
8-9 Troubleshooting Inverter Problems ................................................................................................. 264
8-10 Control Circuit .................................................................................................................................... 276
8-11 Measures for Refrigerant Leakage ................................................................................................... 281
8-12 Compressor Replacement Instructions ........................................................................................... 283
8-13 Troubleshooting Problems Using the LED Status Indicators on the Outdoor Unit ..................... 285
Chapter 9 LED Status Indicators on the Outdoor Unit Circuit Board
9-1 LED Status Indicators ........................................................................................................................ 289
9-2 LED Status Indicators Table ............................................................................................................. 292
HWE14040 GB