Part 4 Trouble Shooting
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Items Contents
Purpose
Prevention of the damage of PCBA, wire, and connector caused by
over-current
Condition for Generation The detected current exceeds the standard.
Expected
Causes
Installation &
Overload
Installation fault, closing of SVC valve, under/over charging with refriger -
ant, infiltration of water into refrigerant, outdoor device shielding, outdoor
fan fault, EEV valve fault, and sensor fault or assembling error.
Compressor
Short between compressor coil and Panel, abrasion of compressor, and
short/opening of compressor coil.
PCB
Assembly
Input current detection circuit fault.
Others Input of low-voltage.
6.7 Troubleshooting Outdoor Error
CH 22 (Input of Over Current)
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