Cooling Troubleshooting; Cooling Service Analysis - Carrier 48/50PG C03-14 Operation And Service Manual

Cooling Troubleshooting

Use the Scrolling Marquee display or a CCN device to view the
cooling status display and the cooling diagnostic display (see
Appendix A) for information on the cooling operation. Check the
current alarms and alarm history for any cooling alarm codes and
correct any causes. (See Table 12.) Verify any unique control
configurations per installed site requirements or accessories.
If alarms conditions are corrected and cleared, operation of the
compressors and fans may be verified by using the Service Test
mode. (See Table 4.) See Table 14 for general cooling service
analysis.
Table 14 – Cooling Service Analysis
45
Comfort 
Comfort
Comfort
Comfort
Comfort S