Error code

Description

01

Defective control unit

02

No start

03

Flame failure

04

Supply voltage too high

05

Flame was detected prior to combustion

06

Heating unit overheated

07

Heating unit interlocked

08

Metering pump short circuit

09

Combustion air fan short circuit

0a

Glow plug/flame monitor short circuit

0b

Circulation pump short circuit

0c

No comunication to air condition

0d

Green LED short circuit

0e

Yellow LED short circuit

0f

No configuraton signal

10

Solenoid valve short circuit

11

ECU wrong coded

12

W-Bus comunication failure

13

Vehicle fan relay short circuit

14

Temperature sensor short circuit

15

Combustion air fan blocked

16

Battery main switch short circuit

17

Invalid air flow reduction

19

Glow plug/electronic ignition short circuit

1a

Flame sensor short circuit

1b

Overheat short circuit

1d

Solenoid valve shed test short circuit

1e

Fuel sensor short circuit

1f

Nozzle stock heating short circuit

20

Operation indicator short circuit

21

Flame indicator short circuit

22

Reference resistance wrong

23

Crash interlock activated

24

Car is almost out of fuel

25

Fuel pre heating short circuit

26

PCB temperatur sensor short circuit

27

Ground contact to the ECU broken

28

Board net energy manager low power voltage

29

Fuel priming still not done

2a

Error in the radio telegram

2b

Telestart still not programmed

2c

The pressure sensor has short circuit

32

No start from control idle period

33

Flame monitor signal invalid

34

Default values entered

35

EOL programming has not been carried out

36

Thermal fuse short circuit

45

Short circuit/open circuit of heating relay

50

User interface idle-Mode (no-communication)

51

User interface has communication fault

52

User interface send no defined operating mode

53

Heater fan status message negative

54

Heater fan status bus has short circuit to UB

55

Temperature water sensor failure

56

Temperature water sensor short circuit to UB

57

Overheating water temperature sensor

58

Overstepping water temperature sensor gradient

59

Overheating blow temperature sensor

5a

Overstepping low temperature sensor gradient

5b

Overheating PCB temperature sensor

5c

Overstepping PCB temp sensor gradient

5d

Cabin temperature sensor failure

5e

Flame detector gradient failure

5f

Emergency cooling

81

EOL checksum error

82

No start during test-run

83

Flame failure

84

Operating voltage too low

85

Flame was detected after combustion

87

Heater lock-out permanent

88

Fuel pump failure

89

Combustion air fan interruption

8a

Glow plug / flame monitor interruption

8b

Circulation pump interruption

8d

Green LED interruption

8e

Yellow LED interruption

90

Solenoid valve interruption

91

Control unit locked or coded as neutral

92

Command refresh failure

94

Temperature sensor interruption

95

Combustion air fan tight

97

Overheat sensor position wrong

98

Fault 152 (Power supply interruption)

99

Glow plug / electronic ignition unit interruption

9a

Flame sensor interruption

9b

Setpoint transmitter invalid

9c

Intelligent undervoltage detection

9d

Solenoid valve shed test interruption

9e

Fuel sensor interruption

9f

Nozzle stock heating interruption

a0

Operating indicator interruption

a1

Flame indicator interruption

a5

Fuel pre heating interruption

a6

PCB temperature sensor interruption

a8

Communication board net energy manager error

aa

Send on W-Bus not succeed

ab

Overheat sensor interruption

ac

The pressure sensor failure

b6

Thermal fuse interrupted

ff

Unknown error code