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TROUBLESHOOTING
1.3
Procedure of Checking Each Main Parts
1.3.1 Self-Checking of PCBs using Remote Control Switch
The following troubleshooting procedure is utilized for function test of PCBs in the indoor unit and outdoor
unit.
When the indoor unit of RPK series is using wireless remote controller (PC-LH3), the above
check is used by PC-P1H and operate according to below items.
(1) Turn OFF of Power Supply
(2) Disconnect CN25 on PCB(M)
(3) Connect the Connector of PC-P1H to CN12 or CN13
(4) Turn ON of Power Supply
After checking turn OFF again and reconnectable perform the procedure in reverse.
Stop Operation
Simultaneously depress
two switches for 3 seconds.
Press
TEMP
RUN/STOP
(ex.) Indication of Unit No. "
0
"
CHECK
Ambient Air Temp. Thermistor
means that automatic PCB checking is operating.
NOTE:
In case of
J2
indication directly (
J1
is not indication),
it is not abnormal.
ADDS. RN
PCB Check Mode
Indication of
Unit Number
Operating Automatic
PCB Check
Abnormality (3)
Abnormality (1)
After Approx. 5 sec. (Max. 30 sec. in
case of transmission failure between
indoor unit and outdoor unit)
Max. 3 Types of Abnormalities indicated.
Result
After
1 Seconds
After
7 Seconds
After
1 Seconds
After
1 Seconds
to next page
Contents
Abnormality (2)
Heat Exchanger Evaporation Temp. Thermistor
Low Pressure Sensor
Comp. Discharge Gas Temp. Thermistor
High Pressure Sensor
Transmission of Inverter
Phase Detection
Protection Signal Detection Circuit
PSH Input Failure
ITO Input Failure
Transmission of Outdoor Unit
This Checking Operation
Transmission of Indoor Unit during
Zero Cross Input Failure
EEPROM
Transmission of Central Station
Remote Sensor
Gas Pipe Temp. Thermistor
Remote Thermistor Abnormality
Liquid Pipe Temp. Thermistor
Discharge Air Temp. Thermistor
Intake Air Temp. Thermistor
Abnormality (Open-circuit, Short-circuit, etc.) in circuit for
Indoor
Unit
PCB
Outdoor
Unit
PCB
Normal
Contents
Indi-
cation
TEMP.
RUN / STOP
MODE FAN SPEED
VENTI
RESET
CHECK
LOUVER
ON/OFF TIMER
TIME
NO FUNCTION
FAN
COOL
HEAT
DRY
AUTO
HIGH
MED
LOW
A/C
VENT
+
SWING
DEFROST
CENTRAL
H.STRG
SERVICE
ON/OFF TIMER
SET TEMP.
RN HR
FILTER
T. RUN
ABNML
CHECK
ADDS
UNIT
LOUVER
Содержание Utopia PAS-3HVRG
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