Carrier Gemini 38AU 16-28 Series Installation, Start-Up And Service Instructions Manual page 30

Simultaneous blinking of YELLOW and RED LEDs indicates
control power input to the CADM is low. Check control circuit
transformer and wiring.
Condenser Fans/Motors
Outdoor
Fan 3
Service
Valves
Fig. 30 — 38AUD Size 16 Cabinet
CKT
2
CKT
Fig. 31 — 38AUD*16 Piping
Outdoor
Fan 1
Outdoor
Fan 2
Access Panel -
Control Box and
Compressors
CKT
1
2
30
CKT
1