Part 4 Trouble Shooting

18,24,30kBtu/h Model Indoor Error

Error code

Descrition

INV TPS

LED1

LED2

Indoor

(Red)

(Green)

Status

 

 

 

 

 

 

 

 

 

00

No Error

 

 

ON

 

 

 

 

 

 

01

Indoor Room themistor error

 

1time

OFF

 

 

 

 

 

 

02

Indoor in-piping sensor error

 

2times

OFF

 

 

 

 

 

 

05

Communcation error between indoor and outdoor units

 

5times

OFF

 

 

 

 

 

 

06

Indoor Out-Piping sensor error

 

6times

OFF

 

 

 

 

 

 

Outdoor Error

Ex) Error Code 21 (IPM Fault)

2 Times2 Times2 Times

LED01G

(RED)

1 Sec.

1 Sec.

1 Sec.

1 Time

1 Time

1 Time

LED02G

(GREEN)

2 Sec.

2 Sec.

Error

Contents

LED01G

LED02G

Case of error

Outdoor

code

(Red)

(Green)

Status

 

 

 

 

 

 

 

 

21

IPM Fault (Compressor Over current)

2 times

1 time

Compressor malfunction,IPM Fault

Off

 

 

 

 

 

 

22

CT 2(Max. Current)

2 times

2 times

Current is 14A or above.

Off

 

 

 

 

 

 

23

DC Link Low Volt.

2 times

3 times

DC Link volt. Is 140V or below.

Off

 

 

 

 

 

 

24

Low / High press

2 times

4 times

Low / High press switch OPEN

Off

 

 

 

 

 

 

25

AC Low / AC High Volt.

2 times

5 times

Abnormal AC volt. Input.

Off

 

 

 

 

 

 

26

DC Compressor Position

2 times

6 times

 

Off

 

 

 

 

 

 

27

PSC Fault

2 times

7 times

 

Off

 

 

 

 

 

 

28

DC Link High Volt

2 times

8 times

Off

Off

 

 

 

 

 

 

32

Discharge Pipe Temp. High (INV)

3 times

2 times

Off

Off

 

 

 

 

 

 

33

Discharge Pipe Temp. High (Cons.)

3 times

3 times

Off

Off

 

 

 

 

 

 

- 46 -

Only for training and service purposes

Page 46
Image 46
Heat Controller VMC18SB-1/VMH18SB-1 service manual 18,24,30kBtu/h Model Indoor Error, Outdoor Error, Error code Descrition

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