10
ERROR DISPLAY
If there is an error occurring during the operation of the system, the error code appears on the LCD (see Fig. 20). If multiple errors occur at the
same time, the codes display circularly.
NOTE: In event of an error, turn off the unit and have unit serviced by trained service personnel.
Enter/cancel
Enter/cancel
Fan
Mode
Function
Timer
On/Off
Fig. 20
-
Error Display
Table 4—Error Description
Error
Error
Code
Error
Error
Code
Return air temperature sensor open/
short circuited
F1
Drive board communication error
P6
Evaporator temperature sensor open/
short circuited
F2
Compressor overheating protection
H3
Indoor unit liquid valve temperature
sensor open/short circuited
b5
Indoor and outdoor units unmatched
LP
Indoor gas valve temperature sensor
open/ short circuited
b7
Communication line misconnected or
expansion valve error
dn
IPM temperature sensor open/short
circuited
P7
E7
Outdoor ambient temperature sensor
open/ short circuited
o
F
n
w
o
d
-
p
m
u
P
3
F
Outdoor unit condenser mid-tube
temperature sensor open/short circuited
5
C
r
o
r
r
e
r
e
p
m
u
J
4
F
Discharge temperature sensor open/
short circuited
1
H
g
n
i
t
s
o
r
f
e
d
d
e
c
r
o
F
5
F
Indoor and outdoor communication error
E6
Compressor startup failure
Lc
DC bus under-voltage protection
PL
High discharge temperature protection
E4
8
E
n
o
i
t
c
e
t
o
r
p
d
a
o
l
r
e
v
O
H
P
n
o
i
t
c
e
t
o
r
p
e
g
a
t
l
o
v
-
r
e
v
o
s
u
b
C
D
Compressor phase current sensing
circuit error
U1
Whole unit over-current protection
E5
Compressor demagnetization protection
HE
Over phase current protection
P5
7
H
g
n
i
z
i
n
o
r
h
c
n
y
s
e
d
r
o
s
s
e
r
p
m
o
C
c
H
n
o
i
t
c
e
t
o
r
p
C
F
P
IPM Temperature Protection
P8
IPM Current protection
H5
Over-power protection
L9
Compressor phase loss/reversal
protection
Ld
System charge shortage or blockage
protection
F0
Frequency restricted/reduced with whole
unit current protection
F8
Capacitor charging error
PU
Frequency restricted/reduced with IPM
current protection
En
High pressure protection
E1
Frequency restricted/reduced with high
discharge temperature
F9
Low pressure protection
E3
Frequency restricted/reduced with anti-
freezing protection
FH
E
L
g
n
il
l
a
t
s
r
o
s
s
e
r
p
m
o
C
Frequency restricted/reduced with
overload protection
F6
F
L
g
n
i
d
e
e
p
s
-
r
e
v
O
Frequency restricted/reduced with IPM
temperature protection
EU
Drive board temperature sensor error
PF
Indoor unit full water error
E9
AC contactor protection
P9
Anti-freezing protection
E2
Temperature drift protection
PE
AC input voltage abnormal
PP
Sensor connection protection
Pd
Whole unit current sensing circuit error
U5
DC bus voltage drop error
U3
4-way valve reversing error
U7
6
H
g
n
il
l
a
t
s
r
o
t
o
M
3
L
n
o
i
t
c
e
t
o
r
p
r
o
r
r
e
1
n
a
f
r
o
o
d
t
u
O
Outdoor fan 2 error protection
LA
PG motor zero-crossing protection
U8
Copyright 2017 CAC / BDP
D
7310 W. Morris St.
D
Indianapolis, IN 46231 Edition Date: 08/17
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Catalog No:KSACN0201AAA-02OM
Replaces: KSACN0201AAA-01OM