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SiBE041213E
Troubleshooting
Service Diagnosis
58
4.2
Indoor Unit PCB Abnormality
Error Code
A1
Method of Error
Detection
The system checks if the circuit works properly within the microcomputer of the indoor unit.
Error Decision
Conditions
The system cannot set the internal settings.
Supposed
Causes
Wrong models interconnected
Disconnection of connector
Reduction of power supply voltage
Defective indoor unit PCB
Troubleshooting
Note:
Check the following connector.
Check the combination of the
indoor and outdoor unit.
OK?
Check the connection of
connectors (See Note).
Correct the connection.
OK?
Check the power supply
voltage.
Start operation.
Voltage as rated?
Error repeats?
Check the power supply
voltage.
Start operation.
Voltage as rated?
Error repeats?
Error repeats?
YES
NO
NO
YES
NO
NO
YES
(R15310)
Caution
∗
To secure the connection,
once disconnect the connector
and then reconnect it.
YES
NO
YES
NO
YES
NO
YES
Match the compatible
models.
Correct the power
supply.
Replace the indoor unit
PCB.
Completed.
Completed.
Correct the power
supply.
Replace the indoor unit
PCB.
Completed.
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.
Model Type
Connector
Wall mounted type
Terminal board ~ Control PCB (H1, H2, H3)
Содержание FTXS35K2V1B
Страница 12: ...SiBE041213E 1 List of Functions Part 1 List of Functions 1 Functions 2...
Страница 14: ...SiBE041213E 3 Specifications Part 2 Specifications 1 Specifications 4...
Страница 59: ...SiBE041213E Remote Controller 48 Part 5 Remote Controller 1 Remote Controller 49...
Страница 111: ...SiBE041213E Check Service Diagnosis 100 42 class 50 class R12266 Tester 1 2 3 4 Tester 1 2 3 4 R14700...
Страница 113: ...SiBE041213E Check Service Diagnosis 102 42 class 50 class R18241 Power module Power module R16692...
Страница 129: ...Revision History Month Year Version Revised contents 05 2013 SiBE041213E First edition...