MTU 20V4000Lx2x Operating Instructions Manual page 129

686 – AL Lube Oil Max
Red alarm.
Associated parameter 1.1480.309
Cause
Maximum engine oil filling level
detected.
688 – LO Oil Refill
Yellow alarm.
Associated parameter 1.1480.301
Cause
No oil replenishment within a
programmable time.
689 – HI Oil Refill
Yellow alarm.
Associated parameter 1.1480.303
Cause
Engine oil was refilled too often
within a certain time interval.
691 – HI Lube Oil Level Refill.
Yellow alarm.
Associated parameter 1.1480.311
Cause
Engine oil was refilled too often
within a certain time interval.
694 – SD T-Gas
Yellow alarm.
Associated parameter 1.8004.123
Cause
Gas temperature sensor
defective, short circuit or wire
break.
719 – AL T-Gas L1
Yellow alarm.
Associated parameter 2.8006.034
Cause
Limit value 1 exceeded.
Corrective action
1. Check engine oil level (→ Page 155).
2. Check replenishment system.
3. Drain oil.
Corrective action
u Check oil replenishment system.
Corrective action
u Check engine oil level (→ Page 155). Check oil supply.
Corrective action
u Check engine oil level. Check oil supply.
Corrective action
1. Not installed in all engine versions (optional).
2. Check sensor and cabling (B38), replace as necessary.
Corrective action
u Check gas supply.
MS150122/00E 2015-07 | Troubleshooting | 129