The ADEC is a generator-set controller. It is used on generator sets from MTU, including the 10V1600 DS500, 12 V 4000 G23, 12 V 4000 G63 and 12V 4000 GX4.
| Code | Meaning | Remedy |
|---|---|---|
| 003 | HI T-Fuel | Contact Service. |
| 003 | HI T-Fuel — Preliminary warning: fuel temperature too high. | Contact Service. |
| 004 | SS T-Fuel | Contact Service. |
| 004 | SS T-Fuel — Main warning: fuel temperature too high; engine stop. | Contact Service. |
| 005 | HI T-Charge Air | 1. Reduce power. 2. Check intercooler. |
| 005 | HI T-Charge Air — Preliminary warning: charge-air temperature too high | 1. Reduce power. 2. Check intercooler. |
| 005 | L1 T-CHARGE AIR — Charge-air temperature too high (1st limit value) | Reduce power. Change over to idle and contact Service. |
| 006 | L2 T-CHARGE AIR — Charge-air temperature too high (2nd limit value) | Reduce power. Change over to idle and contact Service. |
| 006 | SS T-Charge Air | Contact Service. |
| 006 | SS T-Charge Air — Main warning: charge-air temperature too high; engine stop. | 1. Reduce power. 2. Check intercooler. |
| 009 | AL L1 T-Coolant | Reduce power. |
| 009 | AL L1 T-Coolant Intercooler — Preliminary warning: coolant temperature in intercooler too low. | Reduce power. |
| 009 | L1 T-INTERCOOLER — Charge-air coolant temperature too high (1st limit value) | Reduce power. Change over to idle and contact Service. |
| 010 | AL L2 T-Coolant | Reduce power. Check intercooler. |
| 010 | AL L2 T-Coolant Intercooler — Main warning: charge-air coolant temperature too high; engine stop. | Reduce power. |
| 015 | AL L1 T-Coolant Intercooler | |
| 015 | L1 P-LUBE OIL — Lube oil pressure too low (1st limit value) | Check engine-oil level and top up, if required (→ Page 146). |
| 015 | LO P-Lube Oil — Preliminary warning: lube oil pressure too low. | Check oil level, top up as necessary (→ Page 146). |
| 016 | L2 P-LUBE OIL — Lube oil pressure too low (2nd limit value); automatic engine shutdown | 1. Check engine-oil level and top up, if required (→ Page 146). 2. Try to re-start the engine (→ Page 57). 3. Contact Service. |
| 016 | SS P-Lube Oil | 1. Check oil level, top up as necessary (→ Page 134). 2. Attempt to restart engine (→ Page 57). |
| 016 | SS P-Lube Oil — Main warning: lube oil pressure too low; engine will be shut down. | 1. Check oil level, top up as necessary (→ Page 146). 2. Attempt to restart engine (→ Page 57). |
| 019 | HI T-Exhaust A | Check cabling (→ Page 155). |
| 019 | HI T-Exhaust A — Preliminary warning: exhaust gas temperature (A-side) too high. | 1. Check cabling (→ Page 171). 2. Contact Service. |
| 020 | SS T-Exhaust A | Contact Service. |
| 020 | SS T-Exhaust A — Main warning: exhaust gas temperature (A-side) too high. Engine stop. | 1. Check cabling (→ Page 171). 2. Contact Service. |
| 021 | HI T-Exhaust B | Check cabling (→ Page 155). |
| 021 | HI T-Exhaust B — Preliminary warning: exhaust gas temperature (B-side) too high. | 1. Check cabling (→ Page 171). 2. Contact Service. |
| 022 | SS T-Exhaust B | Contact Service. |
| 022 | SS T-Exhaust B — Main warning: exhaust gas temperature (B-side) too high. Engine stop. | 1. Check cabling (→ Page 171). 2. Contact Service. |
| 023 | L1 COOLANT LEVEL — Engine coolant level too low | Check coolant level and top up, if required (→ Page 153). |
| 023 | LO Coolant Level | |
| 023 | LO Coolant Level — Alarm configuration limit value 1; coolant level too low. | Check coolant level in expansion tank (→ Page 153). |
| 024 | L2 COOLANT LEVEL — Engine coolant level too low | Check coolant level and top up, if required (→ Page 153). |
| 024 | SS Coolant Level | |
| 024 | SS Coolant Level — Alarm configuration limit value 2; coolant level too low. | Check coolant level in expansion tank (→ Page 153). |
| 025 | HI P-Diff. Lube Oil | |
| 025 | HI P-Diff. Lube Oil — Alarm configuration limit value 1; preliminary warning: oil filter differential pressure too high. | Replace oil filter (→ Page 150). |
| 026 | HI P-Diff. Lube Oil | |
| 026 | HI P-Diff. Lube Oil — Alarm configuration limit value 1; preliminary warning: oil filter differential pressure too high. | Replace oil filter (→ Page 150). |
| 027 | HI Leak Fuel Level | |
| 027 | HI Leak Fuel Level — Alarm configuration limit value 1; preliminary warning: leak-off fuel level too high. | 1. Check fuel system. 2. Contact Service. |
| 029 | HI ETC 2 idle speed | Contact Service. |
| 029 | HI ETC 2 idle speed — Idle speed of ETC 2 too high. | Contact Service. |
| 030 | ENGINE OVERSPEED — Engine overspeed; automatic engine shutdown | 1. Acknowledge alarm. 2. Try to re-start the engine (→ Page 57). 3. Contact Service. |
| 030 | SS Engine Speed | Acknowledge alarm. Attempt to restart engine. |
| 030 | SS Engine Speed — Alarm configuration limit value 2; engine overspeed; reduced fuel injection. | 1. Acknowledge alarm. 2. Attempt to restart engine. |
| 031 | HI ETC 1 overspeed | Contact Service. |
| 031 | HI ETC 1 overspeed — Alarm configuration limit value 1; preliminary warning: speed of primary turbocharger too high. | Contact Service. |
| 032 | SS ETC 1 overspeed | Reduce power. Check air filters. |
| 032 | SS ETC 1 overspeed — Alarm configuration limit value 2; speed of primary turbocharger too high. | 1. Automatic power reduction by engine control system. 2. Check air filters (→ Page 138). |
| 036 | HI ETC 2 overspeed | Reduce power. Contact Service. |
| 036 | HI ETC 2 overspeed — Alarm configuration limit value 1; preliminary warning: speed of secondary turbocharger too high. | 1. Reduce power. 2. Contact Service. |
| 037 | SS ETC 2 overspeed | Reduce power. Contact Service. |
| 037 | SS ETC 2 overspeed — Alarm configuration limit value 2; main warning: speed of secondary turbocharger too high. Fuel limitation to a fixed value. | 1. Reduce power. 2. Contact Service. |
| 038 | AL ETC Synchro Fault | Reduce power. Contact Service. |
| 038 | AL ETC Synchro Fault — Synchronization error between ETCs 1 and 2. | 1. Reduce power. 2. Contact Service. |
| 039 | AL ETC 2 cut-in failure | Reduce power. Contact Service. |
| 039 | AL ETC 2 cut-in failure — ETC 2 failed to cut in. | 1. Reduce power. 2. Contact Service. |
| 044 | L1 Coolant Level | Check coolant level. |
| 044 | L1 Coolant Level Intercooler — Alarm configuration limit value 1: intercooler coolant level too low. | Check coolant level (→ Page 161). |
Fault codes and symptom→remedy steps extracted from this controller’s service/owner documentation; verify against the official manual before servicing. Aggregated from the service documentation of generator sets built on this controller.