Trouble shooting 1
OUTDOOR UNIT Error Method:
Indicate or Display:
OK
YES
NO
Serial Communication Error
(Serial Reverse Transfer Error)
Outdoor unit Main PCB
Outdoor unit Fan motor
1. Connection failure
2. External cause
3. Main PCB failure 4. Active filter module failure
5. Transistor PCB (IPM) failure 6. Filter PCB failure 7. Outdoor unit Fan motor failure
Test 1-1 : Reset the power and operate
Does error indication reappear ?
Test 1-2 : Check external cause such as noise
Check if the ground connection is proper.
Check if there is any equipment that causes harmonic wave
near the power cable (Neon light bulb or any electronic
equipment which causes harmonic wave).
Test 2 : Check connection
Check any loose or removed connection line of
between indoor unit and outdoor unit.
>> If there is an abnormal condition, correct it by
referring to Installation Manual or Data &
Technical Manual.
Check connection condition in control unit.
(If there is loose connector, open cable or miss-wiring)
Test 3 : Check the voltage of power supply
Check the voltage of power supply
>> Check if AC187V(AC208V-10%) - 253V(10%) appears
at outdoor unit terminal L1 - L2.
When the indoor unit cannot receive the serial signal from Outdoor unit
more than 2 minutes after power ON, or the indoor unit cannot receive
the serial signal more than 15 seconds during normal operation.
2-2 TROUBLE SHOOTING WITH ERROR CODE
OK
Test 4 : Check serial signal (Reverse transfer signal)
Check serial signal (Reverse transfer signal)
>> Check if indicated value swings between AC90V and AC270V at outdoor unit terminal 1 - 3.
>> If it is abnormal, Check the parts as follows.
- Outdoor unit fan motor (SERVICE PARTS INFORMATION 5)
- Active filter module (SERVICE PARTS INFORMATION 6)
- Transistor PCB (IPM) (SERVICE PARTS INFORMATION 7)
- Filter PCB (Check the wire of CN110)
>> If Outdoor fan motor is abnormal, replace Outdoor unit fan motor and Main PCB.
>> If Active filter module or IPM is abnormal, replace it.
>> If the parts are normal, replace Main PCB.
1
2
3
L1
L2
RED
WHITE
BLACK
BLACK
WHITE
+
-
02-03
Outdoor Unit : No indication
Indoor Unit : Operation lamp: 1 times Flash, Timer lamp: 1 times Flash
Economy lamp: Continuous flash.
ERROR CODE : [E : 11]
Detective Actuators:
Detective details:
Forecast of Cause:
Summary of Contents for R410A
Page 3: ...1 DESCRIPTION OF EACH CONTROL OPERATION R410A WALL MOUNTED type INVERTER ...
Page 23: ...2 TROUBLE SHOOTING R410A WALL MOUNTED type INVERTER ...
Page 63: ...3 APPENDING DATA R410A WALL MOUNTED type INVERTER ...
Page 76: ...Jan 2016 Printed in Japan 3 3 17 Suenaga Takatsu ku Kawasaki 213 8502 Japan ...
