| DTC 
 
 | 
 
 | Fault 
 
 | Diagnostic procedure, see 
 
 | 
      
       | 000 
 
 | 
 
 | No fault. 
 
 |   
 
 | 
      
       | 010 
 
 | 
 
 | Overvoltage cut-out. Activated. 
 
 |   
 
 | 
      
       | 011 
 
 | 
 
 | Undervoltage cut-out. Activated. 
 
 |   
 
 | 
      
       | 012 
 
 | 
 
 | Overheating. 
 
 |   
 
 | 
      
       | 014 
 
 | 
 
 | Possible overheating. 
 
 |   
 
 | 
      
       | 015 
 
 | 
 
 | Operating block. Too many overheating faults. 
 
 |   
 
 | 
      
       | 017 
 
 | 
 
 | Overheating. 
 
 |   
 
 | 
      
       | 020 
 
 | 
 
 | Glow plug. Open circuit/Short circuit to B+. 
 
 |   
 
 | 
      
       | 021 
 
 | 
 
 | Glow plug. Short circuit to ground. 
 
 |   
 
 | 
      
       | 030 
 
 | 
 
 | Combustion air fan. Blocked. 
 
 |   
 
 | 
      
       | 031 
 
 | 
 
 | Combustion air fan. Open circuit/Short circuit to B+. 
 
 |   
 
 | 
      
       | 032 
 
 | 
 
 | Combustion air fan. Short circuit to ground. 
 
 |   
 
 | 
      
       | 038 
 
 | 
 
 | ACC/MCC lead. Open circuit. 
 
 |   
 
 | 
      
       | 039 
 
 | 
 
 | ACC/MCC lead. Short circuit. 
 
 |   
 
 | 
      
       | 041 
 
 | 
 
 | Water pump. Open circuit. 
 
 |   
 
 | 
      
       | 042 
 
 | 
 
 | Water pump. Short circuit. 
 
 |   
 
 | 
      
       | 047 
 
 | 
 
 | Fuel pump. Short circuit to ground. 
 
 |   
 
 | 
      
       | 048 
 
 | 
 
 | Fuel pump. Open circuit/Short circuit to B+. 
 
 |   
 
 | 
      
       | 050 
 
 | 
 
 | Operating block. Too many start attempts. 
 
 |   
 
 | 
      
       | 051 
 
 | 
 
 | Bleeding time exceeded. 
 
 |   
 
 | 
      
       | 052 
 
 | 
 
 | Starting time exceeded. 
 
 |   
 
 | 
      
       | 053 
 
 | 
 
 | Flame failure in ”POWER” mode 
 
 |   
 
 | 
      
       | 054 
 
 | 
 
 | Flame failure in ”HIGH” mode 
 
 |   
 
 | 
      
       | 056 
 
 | 
 
 | Flame failure in ”LOW” mode 
 
 |   
 
 | 
      
       | 060 
 
 | 
 
 | Coolant temperature sensor 1. Open circuit/Short circuit to B+. 
 
 |   
 
 | 
      
       | 061 
 
 | 
 
 | Engine coolant temperature sensor 1. Short circuit to ground. 
 
 |   
 
 | 
      
       | 064 
 
 | 
 
 | Flame temperature sensor. Open circuit/Short circuit to B+. 
 
 |   
 
 | 
      
       | 065 
 
 | 
 
 | Flame temperature sensor. Short circuit to ground. 
 
 |   
 
 | 
      
       | 071 
 
 | 
 
 | Coolant temperature sensor 2. Open circuit/Short circuit to B+. 
 
 |   
 
 | 
      
       | 072 
 
 | 
 
 | Engine coolant temperature sensor 2. Short circuit to ground. 
 
 |   
 
 | 
      
       | 090 
 
 | 
 
 | Control module. Internal fault. 
 
 |   
 
 | 
      
       | 091 
 
 | 
 
 | External interference voltage. 
 
 |   
 
 | 
      
       | 092 
 
 | 
 
 | Control module. Internal fault. 
 
 |   
 
 | 
      
       | 093 
 
 | 
 
 | Control module. Internal fault. 
 
 |   
 
 | 
      
       | 094 
 
 | 
 
 | Control module. Internal fault. 
 
 |   
 
 | 
      
       | 097 
 
 | 
 
 | Control module. Internal fault. 
 
 |   
 
 | 
      
       | 098 
 
 | 
 
 | Control module. Internal fault. 
 
 |   
 
 | 
      
       | 099 
 
 | 
 
 | Control module. Internal fault. 
 
 |   
 
 | 
      
       | 100 
 
 | 
 
 | Control module. Internal fault. 
 
 |   
 
 | 
      
       | 101 
 
 | 
 
 | Control module. Internal fault. 
 
 |   
 
 | 
      
       | 102 
 
 | 
 
 | Control module. Internal fault. 
 
 |   
 
 | 
      
       | 103 
 
 | 
 
 | Control module. Internal fault. 
 
 |   
 
 |