Mitsubishi SCM45ZS-S User Manual

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267
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'16 • SCM-T-199
E45
Outdoor sub PCB
communication error
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
YES
Replace the outdoor main PCB.
NO
YES
YES
Is the connector
connection between the outdoor
main PCB and the outdoor sub
PCB OK?
Is the power source voltage OK?
Is the
communication wire
between the main PCB and the outdoor sub
PCB connected properly?
Is normal state restored?
YES
NO
NO
NO
Correct connector.
Check why power is not
supplied to outdoor sub
PCB.
Connect communication
wire securely.
Defective outdoor sub PCB
→
Replace.
Malfunction by temporary
noise
2. Error detection method
Detected communication error
of more than 15 seconds 4 times
in 15 minutes.
3 . Condition of error displayed
When communication is not
established between the outdoor
sub PCB and the outdoor main
PCB.
4. Presumable cause
• Defective outdoor sub PCB
• Defective connector between
the outdoor main PCB and
outdoor sub PCB
• Defective outdoor main PCB
Note:
Error code
Remote control:
LED Green Red
Outdoor
Content
– 4-time flash
Indoor Keeps flashing Stays OFF

Mitsubishi SCM45ZS-S Specifications

General

Brand	Mitsubishi
Model	SCM45ZS-S
Category	Air Conditioner
Language	English