Manualshelf

Troubleshooting Guide

ManualsBrandsMRCOOL ManualsDIY Mini SplitsDIY 39,000 BTU 3 Ton 4-Zone Ductless Mini-Split A/C & Heat Pump 230-Volt/60Hz/1-16 ft., 25 ft., 50 ft., 66 ft. Line Sets
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Troubleshooting 34
8.5 PC 08 (Current overload protection) / PC 44 (Outdoor unit zero speed protection) / PC
46 (Compressor speed has been out of control) / PC 49 (Compressor overcurrent failure)
Description: An abnormal current rise is detected by checking the specified current detection circuit.
Recommended parts to prepare:
• Outdoor PCB
• Connection wires
• Bridge rectifier
• PFC circuit or reactor
• Refrigeration piping system
• Pressure switch
• Outdoor fan
• IPM module board
Troubleshooting and repair: