4-6
Copyright 2017 Cummins Inc.
Warning lamp lights.
MESSAGE:
LOW COOLANT TEMP
210 − WARNING
Generator set is not operating. Warning
occurs when engine coolant tempera-
ture is 70
F (21 C) or lower. NOTE: In
applications where the ambient tem-
perature falls below 40
F (4C), Low
Coolant Temp may be indicated even
though the coolant heaters are oper-
ating.
Warning lamp lights.
MESSAGE:
COOLANT SENDER
SYMPTOM
TABLE 4-2. WARNING AND SHUTDOWN CODES
(CONTINUED)
CORRECTIVE ACTION
Indicates engine coolant heater is not operating or is
not circulating coolant. Check for the following condi-
tions:
a. Coolant heater not connected to power supply.
Check for blown fuse or disconnected heater
cord and correct as required.
b. Check for low coolant level and replenish if re-
quired. Look for possible coolant leakage points
and repair as required.
c. Open heater element. Check current draw of
heater.
Warning lamp lights.
MESSAGE:
HIGH COOLANT TEMP
211 − WARNING
Inticates the engine coolant temperature is getting
close to the recommended maximum temperature
limit:
215
F − standby / 207 F − primary).
If alternator is powering non-critical and critical loads
and cannot be shut down, use the following:
a. Reduce load if possible by turning off non-critical
loads.
b. Check air inlets and outlets and remove any ob-
structions to airflow.
If engine can be stopped, follow HIGH COOLANT
TEMP 212 − SHUTDOWN procedure.
To check coolant temperature during a warning, ac-
cess coolant temperature menu prior to clearing the
fault.
Shutdown lamp lights.
MESSAGE:
HIGH COOLANT TEMP
212 − SHUTDOWN
Indicates engine has overheated (coolant tempera-
ture has risen above the shutdown trip point:
223
F − standby / 215 F − primary). Allow engine
to cool down completely before proceeding with the
following checks:
a. Check for obstructions to cooling airflow and
correct as necessary.
b. Check fan belt and repair or tighten if necessary.
c. Reset control and restart after locating and cor-
recting problem.
d. Check blower fan and circulation pumps on re-
mote radiator installations.
Indicates that the resistance of the coolant tempera-
ture sender is out of range. Check the resistance of
the sender. Resistance should be 500 to 2k ohms.
Many troubleshooting procedures present hazards which can result in severe personal
injury or death. Only qualified service personnel with knowledge of fuels, electricity, and mechani-
cal hazards should perform service procedures. Review Important Safety Instructions page.
WARNING
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