Check Operation Not Executed - Daikin SkyAir RZR-TA Series Service Manual

SiUS281811EA

4.49 Check Operation Not Executed

U3
Error Code
Applicable All outdoor units
Models
Method of Error Determined based on whether check operation is executed or not
Detection
Error Decision
Error is decided when the unit starts operation without check operation.
Conditions
Supposed

Check operation not executed

Causes
Troubleshooting
Part 6 Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Has the check
NO
operation performed
on outdoor unit
PCB?
YES
Troubleshooting by Error Codes
Press TEST (BS4) button on
master outdoor unit PCB for 5
seconds or longer to check
operation.
Replace the outdoor main PCB (A1P).
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