Wiring Error Check Unexecuted - Daikin 2MXS-N Series Service Manual

Troubleshooting for Outdoor Unit
7.3

Wiring Error Check Unexecuted

U3
Error Code
Outdoor Unit LED A
Display
Method of Error The system checks if wiring error check is executed after clearing the memory.
Detection
Error Decision An error is determined when the unit is operated by the remote controller without executing wiring
error check after the memory was cleared.
Conditions
Supposed The wiring error switch (SW3) may have been pressed for 10 seconds or more and the memory
may have been deleted. The unit cannot be operated unless wiring error check is executed.
Causes
Troubleshooting
140
j h i h h
1 2 3 4
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Wiring error check
executed?
YES
h
5
NO
SiUS121502E
Conduct wiring error check.
Refer to P.179 for detail.
Wiring error check may not
have been finished because of
the trouble of indoor / outdoor
unit.
Conduct wiring error check
again.
(R22429)
Service Diagnosis