Heat Pump, Split System, Single Service, 3 phase
54 Maintenance Document 1394-1
4.4.2 Service parts information 2 : Inverter compressor
Check point 1 : Check connection
Check terminal connection of compressor
(Loose or incorrect wiring)
Check connection of inverter PCB
(Loose or incorrect wiring)
Check point 2 : check winding resistance
Check winding resistance on each terminal
If the resistance value is 0Ω or infinite, replace compressor.
Check point 3 : replace inverter PCB
If check point 1 and 2 do not improve the symptom, replace Inverter PCB.
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