Carrier VECTOR 6500 Operation & Service Manual page 240

Alarm
Steps
NO.
245 CANNOT SAVE SETTING
•
TRIGGER–ON: There is an error in sending and saving new settings in the Microprocessor
memory.
•
UNIT CONTROL: Alarm only.
•
RESET CONDITION: Alarm may be manually reset via Keypad 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 (see reset condition above). Operate the unit through the appropriate modes to see if
any active alarm occurs. Continue with the steps below as necessary.
1 Check Microprocessor Software Revision
Check microprocessor software revi-
sion.
2 Reset Microprocessor
a. Place the Main Power switch in the
OFF position for 30 seconds, then
back to the desired position.
b. Check Active Alarm List.
c. Alarm 245 remains active.
246 EEPROM WRITE FAILURE
•
TRIGGER–ON: here is an error in the ability to write information to be stored in the memory.
•
UNIT CONTROL: Alarm only
•
RESET CONDITION: Alarm may be manually reset via Keypad 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 (see reset condition above). Operate the unit through the appropriate modes to see if
any active alarm occurs. Continue with the steps below as necessary.
1 Check Microprocessor
a. Check set point setting.
b.Enter new set point.
2 Reset Microprocessor
a. Place the Main Power switch in the
OFF position for 30 seconds, then
back to the desired position.
b. Alarm 246 remains active.
Alarm/Cause
7−107
Corrective Action
Will be a 6 digit number, upgrade if required. Refer to
Section 5.4.2.
Alarm is cleared - microprocessor is OK.
Unit will operate, but changes to the settings will not
be retained in the microprocessor memory. Download
and replace microprocessor. Refer to Section 5.7.
Must be between -22 and +89.6°F (-30 and +32°C.)
Must be between -22 and +89.6°F (-30 and +32°C.)
Microprocessor powers up OK.
Download and replace microprocessor. Download
and replace microprocessor. Refer to Section 5.7.
62-11389