62-11640 7–84
00245 CANNOT SAVE SETTING
• ACTIVATION: There is an error in sending and saving new settings in the main microprocessor memory.
• UNIT CONTROL: Engine and Electric Operation: Alarm only.
• RESET CONDITION: Alarm may be manually reset using the display mounted keys or by turning the unit
off, then back on again.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, the active
alarm should clear itself (refer to reset condition above). Operate the unit through the appropriate modes to see
if any active alarm occurs. Continue with the steps below as necessary.
CORRECTIVE ACTIONS:
1. Check Microprocessor Software Revision
Check microprocessor software Unit should have the software upgraded to the latest version, pro-
vided for Carrier Transicold dealers on the TransCentral site.
2. Reset Microprocessor
a. Place the START/RUN-OFF switch in the OFF position. Disconnect positive battery cable, remove
F7 fuse or unplug 1MM connector, wait 20 seconds and reinstall. Then place the START/RUN-
OFF back in the START/RUN position. The microprocessor powers up OK and the latest setpoint
appears in the display.
b. Check Active Alarm List. Alarm is cleared - microprocessor is OK.
c. Alarm 00245 remains active. Unit will operate, but changes to the settings will not be retained in
the microprocessor memory. Download data and replace the main microprocessor module (MM).
Refer to Section 5.5.
00246 EEPROM WRITE FAILURE
• ACTIVATION: An error occurs when trying to write information to be stored in main microprocessor memory.
• UNIT CONTROL: Engine and Electric Operation: Alarm only
• RESET CONDITION: Alarm may be manually reset using the display mounted keys or by turning the unit
off, then back on again.
NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, the active
alarm should clear itself (refer to reset condition above). Operate the unit through the appropriate modes to see
if any active alarm occurs. Continue with the steps below as necessary.
CORRECTIVE ACTIONS:
1. Check Microprocessor
a. Check setpoint setting. Must be between -22 and +90°F (-30 and +32°C).
b. Enter new setpoint.
2. Reset Microprocessor
a. Place the START/RUN-OFF switch in the OFF position. Disconnect positive battery cable, remove
F7 fuse or unplug 1MM connector, wait 20 seconds and reinstall. Then place the START/RUN-
OFF back in the START/RUN position. The microprocessor powers up OK and the latest setpoint
appears in the display.
b. Alarm 00246 remains active. Download data and replace the main microprocessor module (MM).
Refer to Section 5.5.
To Next Page
Loading...
Need help?
General
