ESIE16-03B | Part 2. Troubleshooting 2.4. Component checklist22/08/16 | Version 1.1 Page 45SA R32 Sky-Air RZAG-L2.4. Component checklistOverview of component checklists:Indoor unit ............................................................................................................................................................................................46Fan motor .................................................................................................................................................................................46Outdoor unit..........................................................................................................................................................................................474-way valve ..............................................................................................................................................................................47Compressor..............................................................................................................................................................................49Electronic expansion valve.......................................................................................................................................................50Fan motor .................................................................................................................................................................................52High pressure switch ................................................................................................................................................................53Low pressure switch.................................................................................................................................................................54Main PCB .................................................................................................................................................................................55Refrigerant thermistors.............................................................................................................................................................57System .................................................................................................................................................................................................59Others .................................................................................................................................................................................................59