Cooper & Hunter CHV-5S224SNMX, Service Manual

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0 89 MAINTENACE
CHV
5 COM PACT MULTI VRF UNIT
SERVICE M ANUAL
2.16 Phase-lacking protection of powe r
Phase-lacking protection of power
Check if the power cord is connected
properly
Replace the mian board
It is finished
Connect the power cord properly and see if the
error is eliminated
NO
NO
YES
2.17 Desynchronizing protection of inverter compressor
Whether the sequence of wire for
compressor is correct?
Whether the wiring terminal for
compressor is loose?
Adjust the sequence of wire for
compressor
Connect the wires of compressor tightly
Work normally
NO
YES
YES
YES
NO
NO
Replace the main board
Work normally
Replace the compressor