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Appendix A 177
LED codes
CUB detected intake ambient air error
CUB detected intake ambient air error
This section describes air intake errors detected by the monitoring
utilities chip (MUC) on the core utilities board after power-on.
Table 22 Ambient air (intake) error
LED Fault Symptoms Corrective action
69 Ambient air too warm
is an environmental
warning
Intake air through CUB
too warm.
• Check site temperature
and correct.
• If the fault reoccurs
when room temperature
is within spec. call the
Response Center