Service Diagnosis
34
Domestic air conditioner
11.Service Diagnosis
11.1 Caution for Diagnosis
The operation lamp flashes when any of the following errors is detected.
1. When a protection device of the indoor or outdoor unit is activated or when the thermistor malfunctions,
disabling equipment operation.
2. When a signal transmission error occurs between the indoor and outdoor units. In either case, conduct the
diagnostic procedure described in the following pages.
11.2 Parameter of primary electronic appliance
e
r
u
t
c
i
P
r
e
t
e
m
a
r
a
P
e
m
a
N
O
N
1
Fan motor
Rated voltage:310V
Rated current:0.29A
Rated frequency:
Resistance:14.5
11.3 Problem Symptoms and Measures
Symptom
Check Item
Details of Measure
None of the units
operates
Check the power supply.
Check to make sure that the rated voltage is
supplied.
Check the indoor PCB
Check to make sure that the indoor PCB is broken
Equipment operates
but does not cool, or
does not heat (only
for heat pump)
Diagnosis by service
port
pressure
and
operating current.
Check for insufficient gas.
Large operating noise
and vibrations
Check the installation
condition.
Check to make sure that the required spaces for
installation (specified in the Technical Guide, etc.)
are provided.
11.4 Error Codes and Description indoor display
Code indication
Description
Reference
Page
indoor
Indoor
Malfunction
e
r
u
li
a
f
r
o
s
n
e
s
e
r
u
t
a
r
e
p
m
e
t
m
o
o
R
1
E
e
r
u
li
a
f
r
o
s
n
e
s
e
g
n
a
h
c
x
e
-t
a
e
H
2
E
r
o
rr
e
M
O
R
P
E
E
r
o
o
d
n
I
4
E
E14
Indoor fan motor malfunction
The code indication that is listed above is the main fault
Troubleshooting
35
35
36
37
60HZ
