United Technologies Carrier Transicold 69UG15, Operation And Service

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4–7 T-360
4.5 ELECTRONIC GOVERNOR MODULE
4.6 VOLTAGE CONTROLLER
The voltage controller has one green indicator light and one yellow indicator light. When the green light is illumi-
nated, it means that the voltage controller is receiving power. During normal operations the yellow light is continu-
ously blinking at a one Hz rate. If there is a problem then the yellow light will blink at various rates depending upon
the fault. Refer to the chart below to determine the fault.
Engine cranks, but will not start Electronic Governor Module (EG) is bad Replace
Section 4.1.1 Section 4.1.1
Engine starts, but shuts down
on low oil Section 4.1.2 Section 4.1.2
Engine starts, but shuts down
on high water temperature Section 4.1.6 Section 4.1.6
Table 4–10 Electronic Governor Modules
Fault LED flash code Possible Cause
Engine Over Speed: more than
2,530 RPM One Long–One Short ESS or mechanical engine problem
Actuator Wiring Disconnection.
No signal from ESS for 2 seconds
after RPM is greater than 1,000
RPM for 10 seconds, OR for 5
seconds while engine cranking
(no voltage at EG pin 18). Two Long–One Short Short ESS or wiring problem
Speed Sensor Disconnection.
Fuel/speed actuator (FS) wir-
ing disconnected or open cir-
cuit. Coil Resistance Spec: 2.8
ohm +/- 10%. Two Long–Three Short FS or wiring problem
EG supply voltage is greater
than 26V. Two Long–Seven Short EG or alternator problem
Table 4–11 Voltage Controller
Green LED Fault Possible Cause/Remedy
LED not illuminated No power to the voltage controller Contactor failed
Check line side power on contac-
tors
Yellow LED flash Code Fault Possible Cause/Remedy
One Long–Three Short Over Voltage Error Engine speed, check
One Long–Four Short Under Voltage Error Engine speed, check
Table 4–9 Auto Re-Start Option
Condition Possible Cause Remedy/Reference Section