10
ERROR DISPLAY
If there is an error occurring during the operation of the system, the error code appears on the LCD (see Fig. 19).
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. 19
-
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
F4
Defrost or oil return
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
9
L
n
o
i
t
c
e
t
o
r
p
r
e
w
o
p
-
r
e
v
O
C o m p r e s s o r p h a s e l o s s / r e v e r s a l
protection
Ld
S y s t e m c h a r g e s h o r t a g e o r b l o c k a g e
protection
F0
Frequency restricted/reduced with whole
unit current protection
F8
U
P
r
o
r
r
e
g
n
i
g
r
a
h
c
r
o
t
i
c
a
p
a
C
Frequency restricted/reduced with IPM
current protection
En
1
E
n
o
i
t
c
e
t
o
r
p
e
r
u
s
s
e
r
p
h
g
i
H
Frequency restricted/reduced with high
discharge temperature
F9
3
E
n
o
i
t
c
e
t
o
r
p
e
r
u
s
s
e
r
p
w
o
L
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
2
E
n
o
i
t
c
e
t
o
r
p
g
n
i
z
e
e
r
f
-
i
t
n
A
9
P
n
o
i
t
c
e
t
o
r
p
r
o
t
c
a
t
n
o
c
C
A
Temperature drift protection
PE
AC input voltage abnormal
PP
Sensor connection protection
Pd
Whole unit current sensing circuit error
U5
7
U
r
o
r
r
e
g
n
i
s
r
e
v
e
r
e
v
l
a
v
y
a
w
-
4
3
U
r
o
r
r
e
p
o
r
d
e
g
a
t
l
o
v
s
u
b
C
D
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:KSACN0301AAA-02OM
Replaces: KSACN0301AAA-01OM
