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FILE NO. SVM-08028
(3) Checking procedure
T
V
ab
oltage chec
le 9-6-1
k
1.
No.
Betw
1
een 4 of RY01 and CN31
(A
2
C 220~240V)
2.
3
Between + and − of C27
4
(DC 310 ~ 340V)
3
5
. Between
6
5V and
Pr
GND
ocedure
4
1.
.
•
Between
Application of shoc
12V
k v
and
oltage
GND
.
•Ov
1.
er
•
load b
A
y shor
C po
t-circuit of the
wer cord is def
par
ectiv
ts
e
.
.
1
•
.
P
Breaking wire of the rela
oor contact of the ter
y coil,
minal plate.
def
•
ectiv
Miss wir
e rela
ing of the po
y dr
wer rela
iv
y
er
.
.
2.
•
2
Capacitor (C25, C26) is def
.
ectiv
P
e
oor contact of rela
.
y
•
.
Line filter (L01) is def
Def
ectiv
ectiv
e
e indicator
.
, or poor
•
housing assemb
Diode (DB01) is def
ly
ectiv
. (CN12)
e
1.
.
The temperature of the indoor
3
heat e
.
xchanger is abnor
IC02 is def
mally
ectiv
lo
e
w
.
er
4.
.
T01, DB01, R64, C27 are
2.
detective.
Poor contact of the heat
exchanger sensor. (The connector
is disconnected.) (CN01)
3.Heat exchanger sensor, main
P.C. board are defective. (Refer to
Table 9-6-2 for the judgment of
defective resistance values.)
4.Main P.C. board is defective.
1. Poor contact of the motor
connector.
2. P.C. board is defective.
1. Is the fuse blown?
Voltage check
1. Voltage of relay coil. (DC 12V)
Between pin C of Q02 and GND
2.Between No. 1 and 2 of
connecting cable terminal block.
(AC 220~240V)
1. All indicators light for 3 sec..
2. Indicators do not indicate normally
after approximate 3 sec..
1. Compressor does not operate.
2. OPERATION lamp blinks.
1.Motor does not rotate. (The key
operation is accepted.)
2. The Motor rotates, but it vibrates
too much.
Shut off the power supply and
remove the P.C. board assembly
from the electronic parts base.
Remove the connecting cable from
the terminal block.
Remove the connector for the motor,
and turn the power on.
If the OPERATION lamp blinks
(0.5 sec. : ON, 0.5 sec. : OFF) when
the power turning on, the checking
points described as 1-4 of right
column are not necessary to
perform.
Make the operation status by
pushing once the [START/STOP]
button, except the status of [FAN
ONLY], [ON TIMER].
Start the operation with the system
which the time of the restart delay
timer is shortened.
Make the operation status by
pressing once the [START/STOP]
button.
1.The time of the restart delay timer
is shortened.
2.Cool operation
3.Air volume [AUTO]
4. Make the setting temperature lower
enough than room temperature.
5. Continuous operation.
Turn the power on after connecting
the motor connector. Start the
operation with the following
condition.
1.Operation [Cooling]
2.Airflow [High fan]
3.Continuous operation
Check Point (Symptom) Causes
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