-
160
-
WAIT
Communication error at
initial operation (2/3)
Keeps flashing
Keeps flashing
Stays OFF
2 times flash
1. Applicable model
5. Troubleshooting
All models
Diagnosis
Countermeasure
Is DC5V detected
if the inverter power supply connector (CNI2)
is disconnected?
YES
Diagnosis for when the outdoor
control PCB LED is turned off
From Previous page
NO
NO
A
Shut down the breaker and back on
again the breaker 3 minutes later.
To check method for inverter PCB before
replacment of blown power supply fuse.
B
YES
Does it reset normally?
NO
YES
Isn’t the outdoor
unit controller power supply fuse
(30A) blown?
Note (1) 1-phase model only
NO
YES
YES
YES
NO
Is AC220/240V
detected at the noise filter
secondary side?
Isn’t fuse
〔
250V, 2(3)A
〕
on the outdoor control
PCB blown?
NO
YES
Is DC5V
detected on the outdoor control PCB (Between
�
-
�
of CNI1)?
NO
YES
Is DC5V detected
if the connector of outdoor unit fan motor
is disconnected?
NO
Model 71-140
Is DC255-310V detected at CNA2?
Model 200, 250 Is 220/240
detected at CNW2?
(1)
Note (2) Value in ( ) are for the
model 200, 250.
(2)
Normal (Malfunction by
noise)
Replace noise filter.
Check connection of diode
stack and electrolytic
capacitor by refering main
electrical circuit diagram
Defective outdoor control
PCB
➞
Replace.
Defective outdoor control
PCB
➞
Replace.
Defective outdoor fan
motor
Defective inverter PCB
➞
Replace.
Defective outdoor control
PCB
➞
Replace.
2. Error detection method
3. Condition of Error displayed
4. Presumable cause
• Faulty noise filter
• Faulty indoor control PCB
• Faulty outdoor control PCB
• Faulty inverter PCB
• Faulty fan motor
Note:
To next page
Error code
Remote controller:
LED
Green
Red
Indoor
Outdoor
Content
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