Check Operation Is Not Conducted - Daikin RMXS-L Series Service Manual

SiUS181305E

7.26 Check Operation is not Conducted

U3
Error Code
Method of Error
Check operation is executed or not
Detection
Error Decision
When the unit starts operation without check operation
Conditions
Supposed
Check operation is not executed.
Causes
Troubleshooting
Troubleshooting
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Has the
check operation
NO
performed from the
outdoor unit
PCB?
YES
Troubleshooting for Outdoor Unit
Press and hold BS4 on the service
PCB (A2P) 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. Start once
again and complete a check
operation.
(R13045)
212