MTU 20V4000C55, Operating Instructions Manual

Page: 49 / 226

7.2 Engine governor ECU9 – Fault messages
Possible engine reactions to yellow alarm:
Warning, power limitation / reduction, speed limitation, engine stop
Possible engine reactions to red alarm:
Engine stop, power limitation / reduction, speed limitation, warning
3 – HI T-Fuel
Cause Corrective action
The fuel temperature at sensor
B33 has exceeded limit value 1.
Fuel temperature is too high. 1. Reduce power.
2. Check fuel recooling system (if applicable).
3. Contact Service.
4 – SS T-Fuel
Cause Corrective action
The fuel temperature at sensor
B33 has exceeded limit value 2.
Fuel temperature is too high. 1. Reduce power.
2. Check fuel recooling system (if applicable).
3. Contact Service.
5 – HI T-Charge Air
Cause Corrective action
The charge-air temperature at
sensor B9 has exceeded limit
value 1. Charge-air temperature
too high. 1. Reduce power.
2. Check whether alarms 9 and 10 are pending.
3. Contact Service.
6 – SS T-Charge Air
Cause Corrective action
The charge-air temperature at
sensor B9 has exceeded limit
value 2. Charge-air temperature
too high. 1. Reduce power.
2. Check whether alarms 9 and 10 are pending.
3. Contact Service.
9 – HI T-Coolant Intercooler
Cause Corrective action
The coolant temperature in the
intercooler at sensor B26 has
exceeded limit value 1. Coolant
temperature in intercooler too
high. 1. Reduce power.
2. Check whether alarm 23 is pending.
3. Check cooler (plant side) for contamination.
4. Check operation of fan (plant side).
5. Contact Service.
MS15043/00E 2016-04 | Troubleshooting | 49
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