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 | Preliminary warning: fuel temperature too high. | Contact Service. |
| 004 | Main warning: fuel temperature too high; engine stop. | Contact Service. |
| 004 | SS T-Fuel | Contact Service. |
| 005 | Charge-air temperature too high (1st limit value) | Reduce power. Change over to idle and contact Service. |
| 005 | HI T-Charge Air | 1. Reduce power. 2. Check intercooler. |
| 005 | Preliminary warning: charge-air temperature too high. | Reduce power. Check intercooler. |
| 006 | Charge-air temperature too high (2nd limit value) | Reduce power. Change over to idle and contact Service. |
| 006 | Main warning: charge-air temperature too high; engine stop. | Reduce power. Check intercooler. |
| 006 | SS T-Charge Air | Contact Service. |
| 009 | AL L1 T-Coolant | Reduce power. |
| 009 | Charge-air coolant temperature T-INTERCOOLER too high (1st limit value) | Reduce power. Change over to idle and contact Service. |
| 009 | Preliminary warning: coolant Intercooler temperature in intercooler too low. | Reduce power. |
| 010 | AL L2 T-Coolant | Reduce power. Check intercooler. |
| 010 | Main warning: charge-air coolant temperature too high; engine stop. | Reduce power. |
| 015 | AL L1 T-Coolant Intercooler | |
| 015 | Lube oil pressure too low (1st limit value) | Check engine-oil level and top up, if required |
| 015 | Preliminary warning: lube oil pressure too low. | Check oil level, top up as necessary (— Page 146). |
| 016 | Lube oil pressure too low (2nd limit value) | Check engine-oil level and top up, if required automatic engine shutdown Try to re-start the engine Contact Service. |
| 016 | SS P-Lube Oil | 1. Check oil level, top up as necessary (→ Page 134). 2. Attempt to restart engine (→ Page 57). |
| 019 | HI T-Exhaust A | Check cabling (→ Page 155). |
| 020 | SS T-Exhaust A | Contact Service. |
| 021 | HI T-Exhaust B | Check cabling (→ Page 155). |
| 022 | SS T-Exhaust B | Contact Service. |
| 023 | Engine coolant level too low LEVEL (— Page 153) | Check coolant level and top up, if required |
| 023 | LO Coolant Level | |
| 024 | SS Coolant Level | |
| 025 | HI P-Diff. Lube Oil | |
| 026 | HI P-Diff. Lube Oil | |
| 027 | HI Leak Fuel Level | |
| 029 | HI ETC 2 idle speed | Contact Service. |
| 030 | Engine overspeed; automatic engine shutdown | Acknowledge alarm. Try to re-start the engine Contact Service. |
| 030 | SS Engine Speed | Acknowledge alarm. Attempt to restart engine. |
| 031 | HI ETC 1 overspeed | Contact Service. |
| 032 | SS ETC 1 overspeed | Reduce power. Check air filters. |
| 036 | HI ETC 2 overspeed | Reduce power. Contact Service. |
| 037 | SS ETC 2 overspeed | Reduce power. Contact Service. |
| 038 | AL ETC Synchro Fault | Reduce power. Contact Service. |
| 039 | AL ETC 2 cut-in failure | Reduce power. Contact Service. |
| 044 | Charge-air coolant level too low INTERCOOLER (1st limit value) | Check coolant level and top up, if required |
| 044 | L1 Coolant Level | Check coolant level. |
| 045 | Charge-air coolant level too low INTERCOOLER (2nd limit value) | Check coolant level and top up, if required If fault occurs repeatedly: Contact Service. |
| 051 | HI T-Lube Oil | Reduce power. |
| 051 | Lube oil temperature too high (1st limit value) | Reduce power. Change over to idle and contact Service. |
| 052 | Lube oil temperature too high (2nd limit value) | Reduce power. Change over to idle and contact Service. If fault occurs repeatedly: Contact Service. |
| 052 | SS T-Lube Oil | Reduce power. Check engine oil level |
| 057 | LO P-Coolant | Check coolant circuit. |
| 058 | SS P-Coolant | Automatic shutdown. Check coolant level. |
| 063 | HI P-Crankcase | Reduce power. Replace oil separator element. |
| 064 | SS P-Crankcase | Replace oil separator element. Contact Service. |
| 065 | Fuel supply pressure too low (ist limit value) | Check fuel lines for leaks; repair defective lines. Clean fuel prefilter Flush fuel prefilter Replace filter element of fuel prefilter Replace fuel filter If fault is not rectified: Contact Service. |
| 065 | LO P-Fuel | Check fuel lines for leaks. Clean and flush fuel prefilter. Replace filter element of fuel prefilter. |
| 066 | Fuel supply pressure too low (2nd limit value) | Check fuel lines for leaks; repair defective lines. Clean fuel prefilter Flush fuel prefilter Replace filter element of fuel prefilter Replace fuel filter If fault is not rectified: Contact Service. |
| 066 | SS P-Fuel | Check fuel lines for leaks. Clean and flush fuel prefilter. Replace filter element of fuel prefilter. |
| 067 | Coolant temperature too high (tst limit value) | Reduce power. Change over to idle and warning contact Service. |
| 067 | HI T-Coolant | Reduce power. |
| 068 | Coolant temperature too high (2nd limit value) | Allow the engine to cool down. Check coolant cooler (elements etc.) clean contaminated parts (see manufacturer’s documentation). Re-start the engine If fault occurs repeatedly: Contact Service. |
| 068 | SS T-Coolant | Allow engine to cool down. Check coolant cooler, clean if necessary. Restart engine. Contact Service. |
| 069 | Violation of first limit for external temperature channel 1 point, which is read via CAN bus | |
| 070 | Violation of second limit for external temperature channel 1 point, which is read via CAN bus |
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.