Carrier PrimeLINE 69NT40-561-200 Operation And Service Manual page 85

AL62 O OUT OF RANGE
2
Cause: This is a notification alarm and does not pose a risk to fresh produce. AL62 is triggered when there
is an indication that the O
above setpoint, the alarm is activated. The alarm does not activate if the unit was pre-tripped or
trip started between last reaching its O
turned off for eight hours. The alarm is deactivated if O
or trip start is performed.
Troubleshooting Refer to the troubleshooting of the Scrubber Motor in the AL29 alarm.
Troubleshooting Refer to the troubleshooting of the Solenoid Air Vent in the AL29 alarm.
Troubleshooting Seal container where possible (access panels, rear doors, mounting
AL63 CURRENT LIMIT
Cause: Unit operating above current limit.
Component
Corrective Action Clean or remove any debris from coils.
Corrective Action Repair as needed.
Component
Corrective Action Correct power supply.
Component
Corrective Action The current limit can be raised (maximum of 23 amps) using Cd32.
AL64 DISCHARGE TEMPERATURE SENSOR (CPDS)
Cause: Discharge Temperature Sensor out of range.
Component
Corrective Action Replace the CPDS if defective. Refer to Sensor Replacement
level is rising after reaching its setpoint (+ 1%). If O
2
Component Scrubber Failure
Component XtendFRESH Solenoid Valves
Component Container Air Tightness
hardware, etc).
Refrigeration System
Troubleshooting Check unit for air flow restrictions.
Troubleshooting Check unit for proper operation.
Power supply
Troubleshooting Confirm supply voltage/frequency is within specification and bal-
anced according to Electrical Data
Current limit set too low
Troubleshooting Check current limit setting Code Cd32.
Discharge Temperature Sensor (CPDS).
Troubleshooting Test the CPDS. Refer to Sensor Checkout Procedure,
7.28.1.
tion 7.28.
setpoint and exceeding the plus 4%, or if power has been
2
drops below setpoint (+ 1%) or if a pre-trip
2
4–47
level exceeds 4%
2
Section 3.3.
Section
Sec-
T-362