Carrier SUPRA 950Mt - Refrigeration; Unit will Not Cool; Unit Runs but Has Insufficient Cooling; Unit Operates Long or Continuously in Cooling

6-3 62-11863
6.3 REFRIGERATION
Excessive charging rate Regulator leads loose, dirty/corroded terminals, or wires
broken
Defective regulator
Clean/Repair
Check
Noisy alternator Defective or badly worn V-belt
Worn bearing(s)
Misaligned belt or pulley
Loose pulley
5.3
Replace
5.3
Tighten
6.3.1 Unit Will Not Cool
Diesel engine Malfunction(s) 6.1
Compressor malfunction Compressor drive defective
Compressor defective
5.8
5.8
Refrigeration system Defrost cycle did not terminate
Abnormal pressure
Hot Gas valve malfunction
6.3.5
6.3.6
6.3.11
6.3.2 Unit Runs But Has Insufficient Cooling
Compressor Compressor valves defective
Unloader malfunction
5.8
5.10
Refrigeration system Abnormal pressure
Expansion valve malfunction
No or restricted evaporator airflow
Unloader malfunction
6.3.6
6.3.10
6.3.9
5.10
Engine does not develop full
rpm
Engine malfunction
Excessive engine load
6.1
2.7.1
6.3.3 Unit Operates Long or Continuously in Cooling
Container Hot Load
Defective box insulation or air leak
Allow time to pull
down
Correct
Refrigeration system Abnormal pressure
Temperature controller malfunction
6.3.6
6.3.8
Compressor Defective 5.8
6.3.4 Unit Will Not Heat or Has Insufficient Heating
Refrigeration Abnormal pressure
Temperature controller malfunction
Hot gas valve malfunction
6.3.6
6.3.8
6.3.11
Compressor Compressor drive defective
Compressor defective
5.8
5.8
Engine does not develop full
rpm
Engine malfunction
Excessive engine load
6.1
2.7.1