Fault Messages In Genset Control System Log - MTU 12V 4000 L32 F Operating Instructions Manual

6.2 Fault messages in genset control system log

112222 – HI T-Exhaust Mean
Yellow alarm. Initiated by EMU.
Cause
Weighted average of all individual
exhaust gas temperatures is too
high.
112223 – HIHI T-Exhaust Mean
Red alarm. Initiated by EMU.
Cause
Weighted average of all individual
exhaust gas temperatures is too
high.
112301 – HI T-Exhaust A1
Yellow alarm. Initiated by EMU.
Cause
Individual exhaust gas
temperature of this cylinder is too
high in comparison with weighted
average.
112302 – HI T-Exhaust A2
Yellow alarm. Initiated by EMU.
Cause
Individual exhaust gas
temperature of this cylinder is too
high in comparison with weighted
average.
112303 – HI T-Exhaust A3
Yellow alarm. Initiated by EMU.
Cause
Individual exhaust gas
temperature of this cylinder is too
high in comparison with weighted
average.
Corrective action
1. Check emission values (→ Page 46).
2. Check ignition timing (→ Page 175).
3. Check valve drive (exhaust valves do not close).
Corrective action
1. Check emission values (→ Page 46).
2. Check ignition timing (→ Page 175).
3. Check valve drive (exhaust valves do not close).
Corrective action
1. Check emission values (→ Page 46).
2. Check ignition timing (→ Page 175).
3. Check valve drive (exhaust valves do not close).
Corrective action
1. Check emission values (→ Page 46).
2. Check ignition timing (→ Page 175).
3. Check valve drive (exhaust valves do not close).
Corrective action
1. Check emission values (→ Page 46).
2. Check ignition timing (→ Page 175).
3. Check valve drive (exhaust valves do not close).
MS150104/02E 2016-11 | Troubleshooting | 57