Carrier NDK33BN0KB, Operation & Service Manual

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62-61753-21 7-68
Alarm
NO.
Steps ALARM / CAUSE CORRECTIVE ACTION
130 CHECK ENGINE RPM SENSOR (ENRPM)

TRIGGER-ON: Engine mode only. This alarm does not activate in standby.
In Auto Start, after the 2nd or 3rd start attempt the Engine Oil Pressure switch is closed (oil pressure
good) and engine speed sensed at less than 1000 rpm
NOTE: This alarm can only be triggered during the engine starting sequence and during the
20 seconds immediately following.

UNIT CONTROL: Alarm Only and engine will be considered running.

RESET CONDITION: Auto Reset in Auto Start when engine speed is greater than 1,000 rpm or 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 (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.
1
Check Alarm List
a. Check for Alarm 41. When both Alarm 41 and Alarm 130 are activated, this
is an indication the engine may have run out of fuel.
2 Check Sensor
a. Check sensor and wiring. Refer to Section 8.4.12
3 Check Circuits With Another Sensor
a. Substitute known good sensor and
clear alarm. Start unit and run for
30 seconds.
b. Check to see if alarm re-occurs. Alarm should not come on. (Install new sensor if nec-
essary)