Daikin VRV IV+ Installer And User Reference Manual page 160

24 | Troubleshooting
Main code
Master
Installer and user reference guide
160
Sub code
Slave 1 Slave 2
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Cause
Unit is not prepared to execute
leak detection operation
Indoor unit is out of
temperature range for leak
detection operation
Outdoor unit is out of
temperature range for leak
detection operation
Too low pressure was noticed
during leak detection operation
Indicates an indoor unit which
is not compatible with leak
detection functionality is
installed (e.g. Hydrobox, ...)
Solution
Refer to requirements to be
able to execute leak detection
operation.
Retry when ambient conditions
are satisfied.
Retry when ambient conditions
are satisfied.
Restart leak detection
operation.
Refer to requirements to be
able to execute leak detection
operation.
REYQ8~20+REMQ5U7Y1B
VRV IV+ heat recovery
4P561154-1A – 2020.10