![background image](http://html.mh-extra.com/html/daikin/ary20dv2/ary20dv2_service-manual_501356067.webp)
Troubleshooting
SiBE01-503
58
Service Diagnosis
4.2
Indoor Unit PCB Abnormality
Remote
Controller
Display
A1
Method of
Malfunction
Detection
Evaluation of zero-cross detection of power supply by indoor unit.
Malfunction
Decision
Conditions
When there is no zero-cross detection in approximately 1.25 continuous seconds.
Supposed
Causes
Faulty indoor unit PCB
Faulty connector connection
Troubleshooting
Note:
Connector Nos. vary depending on models.
Connector connection check
(note).
YES
Is it normal?
NO
Correct connections.
Replace PCBs.
(R1400)
Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage may be occurred.
Model Type
Connector No.
All indoor units
Terminal strip~Control PCB
Summary of Contents for ARY20DV2
Page 1: ...SiBE01 503 SPLIT Pair D Series Applied Models zNon Inverter Pair Heat Pump ...
Page 5: ...SiBE01 503 iv Table of Contents Index i Drawings Flow Charts iii ...
Page 10: ...SiBE01 503 List of Function 1 Part 1 List of Function 1 Functions 2 ...
Page 13: ...Functions SiBE01 503 4 List of Function ...
Page 14: ...SiBE01 503 Specifications 5 Part 2 Specifications 1 Specifications 6 ...
Page 35: ...Control Specification SiBE01 503 26 Functions and Control ...
Page 59: ...Instructions SiBE01 503 50 System Configuration ...
Page 79: ...Check SiBE01 503 70 Service Diagnosis ...
Page 117: ...Others SiBE01 503 108 Others ...