Carrier VECTOR 6500 - Page 236

62-11389
7−103
Alarm
NO.
Steps Alarm/Cause Corrective Action
237 FUNCTION PARAMETERS ERROR
• TRIGGER–ON: There is an error in one or more of the Functional Parameters that are stored in the
microprocessor memory.
• UNIT CONTROL: Incorrect Functional Parameter(s) will be automatically set for default value.
• RESET CONDITION: Auto Reset when valid Functional Parameters are entered, or alarm may be
manually reset 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 Functional Parameters
Check Functional Parameters. All must be set for selectable values.
2 Check Software Version
Check microprocessor Software
version.
Upgrade to the latest version of software. Newer
versions may contain functional parameters that
were not present in older versions of microprocessor
software. Refer to Section 5.4.2.
3 Reset Microprocessor
a. Place the Main Power switch in the
OFF position for 30 seconds, then
back to the desired position.
Microprocessor powers up OK.
b. Check for valid Functional Parame-
ters in Functional Parameters List.
Valid number is set for all parameters.
Alarm is cleared.
c. Valid Functional Parameter(s) can
not be entered and alarm remains
active.
Download and replace microprocessor. Refer to
Section 5.7.