Table of Contents
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SiUS341802EC
3.20 Transmission Abnormality between Indoor Unit Control
PCB and Fan PCB
Applicable
FXSQ-TA, FXSQ-TB, FXMQ-PB, FXMQ-TB, FXMQ-TA
Models
C1
Error Code
Method of Error
Transmission conditions between the indoor unit control PCB (A1P) and fan PCB (A2P) are
Detection
checked via microcomputer.
Error Decision
When normal transmission is not carried out for a certain duration.
Conditions
Supposed
Connection defective the connector between indoor unit control PCB (A1P) and fan PCB (A2P)
Causes
Defective indoor unit control PCB (A1P)
Defective fan PCB (A2P)
External factor, such as instantaneous power failure
Part 6 Service Diagnosis
Troubleshooting by Error Code
266
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Table of Contents
Troubleshooting
