Sinclair SDV 6 Service Manual page 59

8.1.1 A01 – Emergency shutdown
Error display
The faulty IDU and other IDUs of the same system: stop running, displaying code "A01" (SDV5 plat. indoor
unit displays "A0" code)
Error impact
ODU of the same system: stop running, displaying code "A01" (SDV5 plat. outdoor unit displays "A0" code)
Error trigger
When the IDU receives an emergency shutdown signal from the ODU
Error recovery
When the IDU automatically recovers after receiving an emergency shutdown signal from the ODU.

Possible cause
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Troubleshooting
Note:
1.Emergency shutdown is usually caused by the outdoor unit receiving an emergency shutdown command
sent by the central controller or external reasons. For detailed handling instructions, please refer to the
corresponding outdoor unit troubleshooting manual.
56
Digital display
An emergency shutdown signal is received.
The IDU main control board is damaged.
Find out the cause of the
emergency shutdown and
solve it before clearing the
emergency shutdown signal
Check whether the
fault is cleared
Yes
Fault cleared
A01
No
Display position
Panel, display box, and wired controller
Replace the main control
board of the IDU