Troubleshooting Guide

Troubleshooting 17

45 Frequency limit symbol

Bit7

Frequency limit caused by

IGBT radiator

The display value is a

hexidecimal number.

For example, the

digital display show

2A, then Bit5=1,

Bit3=1, and Bit1=1.

This means that a

frequency limit may be

caused by current, IPM

or T3.

Bit6 Frequency limit caused by PFC

Bit5 Frequency limit caused by T4.

Bit4 Frequency limit caused by T2.

Bit3 Frequency limit caused by T3.

Bit2 Frequency limit caused by T5.

Bit1

Frequency limit caused by

current

Bit0

Frequency limit caused by

voltage

46 T2B fault

00:No fault,01:T2B-A fault, ,02:T2B-B fault ,03:T2B-C

fault,04:T2B-D fault, 05:T2B-E fault, 06:T2B-F fault(The display

priority is A-B-C-D-E-F)

47 Average value of T2

(Sum T2 value of all indoor units)/(number of indoor units in

good connection)( The heating is the average value of T2, and

the cooling is the average value of T2B)

48 Outdoor unit fan motor state

Off: 0, Super ultra high speed:1, Super high speed:2, High

speed:3, Med speed: 4, Low speed: 5, Breeze:6, Super breeze:

49 Reason of stop