U3" Check Operation Is Not Executed - Daikin VRV III-S RXYMQ36 48PVJU Service Manual

Troubleshooting by Indication on the Remote Controller
U3
3.38 " " Check Operation is not Executed
U3
Remote
Controller
Display
Applicable RXYMQ36 · 48PVJU
Models
Method of
Check operation is executed or not
Malfunction
Detection
Malfunction
Malfunction is decided when the unit starts operation without check operation.
Decision
Conditions
 Check operation is not executed.
Supposed
Causes
Troubleshooting
Caution Be sure to turn off the power switch before connecting or disconnecting the connector, or parts may be damaged.
performed on Outdoor
178
Has the
check operation
NO
unit PCB?
YES
Press and hold BS4 on the
outdoor master PCB for 5
seconds or more, or turn ON the
local setting mode 2-3 to
conduct a check operation.
Performs the check operation
again and completes the check
operation.
When a leakage detection
function is needed, normal
operation of charging refrigerant
must be completed. Then
start once again and complete a
check operation.
Troubleshooting
SiUS34-907