F93/F99 INVERTER CHECKER

Purpose

To inspect Inverter Air-Cond operating condition.

Troubleshooting Guide - F90 / F93 / F99
Compressor Rotation Failure

Failure Root Cause (Primary Location/Parts To Verify)

1) Outdoor PCB
2) Compressor

1st Cheking Point:

Check the outdoor PCB
Outdoor PCB terminals U (R)-V(B), V-W(Y) & W-U having same AC Voltage (100 - 180Vac)

Or

DC Volatge - 160Vdc (U-N, V-N, W-N)

* Kindly refer to following after fixing the compressor wires to the Inverter Checker.

Indicator Light Blinking

1) If only less than 6 Inficator Light up - possible cause is PCB faulty.
2) If all 6 indicator light up - possible cause is compressor faulty.

Note

1) Applicable for 3ph DC Inverter Air-Cond.
2) Only for Single Outdoor Inverter and NOT for VRV System.