YMGI • Your Modern Green Idea
YMGI, Engineered Comfort Products for A Sustainable and Efficient Green World!
45
ERROR CODE LIST
No.
Malfunction name
Red light
(running
LED)
Yellow light
(heating
LED)
Green light
(cooling
LED)
Floor
ceiling
dual 8
Display of
wire
controller
Display of
wire
controller
for duct
type unit
1
High pressure protection of system Blink once
E1
Yes
E1
2
Antifreezing
Blink twice
E2
Yes
E2
3
Low pressure protection of system
Blink 3 times
E3
Yes
E3
4
Discharge protection
Blink 4 times
E4
Yes
E4
5
Low voltage overcurrent protection
Blink 5 times
E5
Yes
E1
6
Communication malfunction
Blink 6 times
E6
No
E6
7
Mode shock
Blink 7 times
E7
No
E2
8
Malfunction of jumper cap
Blink 15
times
C5
No
E3
9
Defrosting/heating oil return
Blink once
H1
Yes
Defrost
10
Overload protection of compressor
Blink 3 times
H3
Yes
E5
11
System is abnormal
Blink 4 times
H4
No
F4
12
Module protection
Blink 5 times
H5
No
E3
13
PFC protection
Blink 6 times
HC
No
E5
14
Out-of-step malfunction of
compressor including erase
malfunction
Blink 7 times
H7
No
H8
15
Water overflow protection
Blink 8 times
H8
Yes
H8
16
Indoor ambient temperature sensor
is open circuit or short circuit
Blink once
F1
Yes
F0
17
Indoor evaporator temperature
sensor is open circuit or short
circuit
Blink 5 times
Blink twice
F2
Yes
F1
18
Outdoor ambient temperature
sensor is open circuit or short
circuit
Blink 3 times
F3
Yes
F3
19
Outdoor condenser temperature
sensor is open circuit or short
circuit
Blink 4 times
F4
Yes
F2
20
Discharge temperature sensor is
open circuit or short circuit
Blink 5 times
F5
Yes
F4
21
The reserved outdoor unit displays
E2
Blink 11time
HA
No
No
22
Malfunction of ambient
temperature sensor on wire
controller
Display the malfunction of indoor ambient temperature
sensor when using this temperature sensor (Green light:
blink once)
Yes
F5
