Mitsubishi Electric PURY-M200YNW-A1 Service Handbook page 266

8-15-20 Water Pressure Protection Valve Replacement Procedure (HBC) ..................................................... 176
8-16 Sub-HBC Maintenance Instructions................................................................................................ 177
8-16-1 Valve Block Assembly Replacement Procedur (Sub HBC) ................................................................ 177
8-16-2 Thermistor (TH31) Replacement Procedur (Sub HBC) ...................................................................... 179
8-16-3 Thermistor (TH32, TH33) Replacement Procedur (Sub HBC)............................................................ 180
8-16-4 Air Vent Valve Replacement Procedure (Sub HBC) ........................................................................... 181
8-17 Troubleshooting Problems Using the LED Status Indicators on the Outdoor Unit ................... 182
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