Pretrip Alarms - Carrier VECTOR 6500 Operation & Service Manual

Alarm
Steps
NO.
P141 PRETRIP STOPPED BY USER
•
TRIGGER–ON: Pretrip cycle was stopped by user before the Pretrip cycle ended automatically.
•
UNIT CONTROL: Engine and Standby Operation: 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, clear the
alarm(s). (See Note 1 page 7−2.) Operate the unit through the appropriate modes to see if any active alarm
occurs. Continue with the steps below as necessary.
1 Check For Any Pretrip Alarms
Scroll the alarm list for any Active

Pretrip alarms.

2 Rerun Pretrip Check (If Desired)
a. Clear Active Alarm List, then run
Pretrip & check for any new alarms.
b. Allow to terminate automatically.
P144 CHECK UL1 CIRCUIT
•
TRIGGER–ON: Normal Amps for the Front Unloader (UL1) Circuit is 0.75 to 2.0 Amps. The circuit
tests outside this range.
•
UNIT CONTROL: Engine and Standby Operation: Pretrip will fail in test 2 and display "PRETRIP
FAIL AND COMPLETED".
•
RESET CONDITION: Auto Reset if Pretrip is started again, or alarm may be manually reset via
keypad or by turning the unit off, then back on again.
Check UL1 circuit - refer to procedure for alarm 85
Alarm/Cause
7.9 PRETRIP ALARMS
7−75
Corrective Action
Alarm conditions must be corrected and the alarm
cleared to continue.
Unit is in Pretrip. Check for any new alarms.
Pretrip cycle operates normally.
62-11389