WEBASTO,ERROR CODES EBERSPACHER AND PLANAR

The control unit - the "brain of the system", controls the heater in real time. The control units are divided into internal (located inside the heater) and external (mounted outside). The control unit stores the history of the heater.

In the event of a malfunction of individual components, the control unit emergencyly shuts off the heater and issues an error code.

Error codes Webasto / Webasto /

Error code / Error description

F 00 control unit is faulty (at AT 3500/5000)

F 01 there is no start (after 2 attempts) or (at AT 3500/5000) no flame is formed

F 02 flame break (repeated more than 5 times)

F 03 voltage drop below acceptable or increase above acceptable

F 04 premature flame recognition

F 05 open circuit or short circuit of the flame sensor (for AT 2000 and AT 2000S)

F 06 open circuit or short circuit temperature sensor

F 07 open circuit or short circuit of the metering pump

F 08 open circuit, short circuit or incorrect speed of the air blower motor

F 09 open circuit or short circuit of the glow plug / flame sensor

F 10 overheat

F 11 open circuit or short circuit of the heating limiter (for AT 3500/5000)

F 12 open circuit or short circuit of the control thermostat (at AT 3500/5000)

Error codes Eberspacher

010 Voltage too high

011 Voltage too low

012 Overheating (program - threshold value)

014 Overheating possibility detected (differential rating)

015 Lockout - Heater has overheated more than 10 times

017 Overheating detected Emergency shutdown (limit value)

020 021 A candle is an interruption. Candle: short circuit, overload or accidental grounding. The candle has failed as a result of exceeding the voltage values.

030 The fan motor speed for air intake is out of range.

031 Fan motor for air intake - interruption.

032 Air intake fan motor: short circuit, overload, or accidental grounding.

038 Car fan relay - interrupt.

039 Car fan relay - short circuit, overload, or accidental ground.

041 Water pump - interruption.

042 Water pump - short circuit, overload, or accidental grounding.

047 Dosing pump - short circuit, overload or accidental grounding.

048 Dosing pump - interruption.

050 Blocking. Too many failed start attempts (10 start attempts, as well as a repeat start for each start attempt).

051 Time exceeded.

052 Security time value exceeded.

053 The flame is interrupted in time of the “large” control stage.

056 The flame is interrupted in time of the “small” control stage.

060 Temperature sensor - interruption.

061 Temperature sensor - short circuit, overload or accidental grounding.

064 Flame detector - interruption.

065 Flame detector - short circuit, overload or accidental grounding.

071 Overheating sensor - interruption.

072 Overheating sensor - short circuit, overload or accidental grounding.

090-092-103 The controller (control unit) is faulty.

091 External interference voltage.

Error codes PLANAR D4

Number of LED flashes / Error description

1 Overheat

2 The heater does not start (two automatic start attempts have been exhausted)

3 Flameout

4 Glow plug malfunction

5 Flame indicator malfunction

6 Faulty temperature sensor in the control unit

7 Fuel pump malfunction

8 The heater does not start

9 Shutdown, overvoltage over 30.8 V (15 V for 12 V heater)

Shutdown, undervoltage less than 20 V (10.8 for 12 V heater)

10 Insufficient ventilation to cool the combustion chamber of the heater

11 Air Blower Motor Malfunction

Error codes WEBASTO AirTop 2000/3500/5000 ST

F00 faulty control unit

F01 2 failed start attempts or no flame

F02 flame break (repeated more than 3 times)

F03 voltage drop below acceptable or increase above acceptable

F04 premature flame detection

F05 open circuit or short circuit of the flame sensor (only AT 2000 ST gasoline!)

F06 open circuit or short circuit temperature sensor

F07 Open circuit or short circuit of the metering pump

F08 open circuit or short circuit of the air blower motor, overload or blocking of the air blower impeller

F09 Open circuit or short circuit of the glow plug

F10 overheating

F11 open circuit or short circuit heating limiter

F12 Heater lockout: remove the fuse and insert it back.

F14 incorrect position of the overheating sensor

F15 open circuit or short circuit of the potentiometer on the control

Webasto fault codes PDF – download

Webasto Air Top 2000 Fault Codes

Webasto Air Top 2000S Fault Codes

Webasto Air Top 2000ST Fault Codes

Webasto Air Top 3500 Fault Codes

Webasto Air Top 3500ST Fault Codes

Webasto Air Top 5000 Fault Codes

Webasto Air Top 5000ST Fault Codes.

Webasto Air Top EVO 3900 Fault Codes

Webasto Air Top EVO 5500 Fault Codes

If a standard or combi-timer is installed on the heater, then after an emergency lock, a malfunction code will be displayed on its display.

If the heater is equipped with a switch as a control, then the code will be displayed as a blinking lamp on the switch (blink code).

After 5 short signals, long pulses are issued - the number of these pulses for various faults corresponds to the number after the letter F.

Error code	Description ( original )	Description ( translation )	Recommendations
01	Defective control unit	Malfunction of the control unit (faulty control unit, error in the EOL program or defective coolant temperature sensor)	Clear the error, unlock the heater, restart the heater
02	No start	Does not start (no flame detected in the set time)	1) The reason is in the air intake or in the exhaust pipe. 2) The reason is in the fuel system. 3) Check the pump dispenser . 4) Check the electrical system of the glow plug.
03	Flame failure	Open flame ( breakdown of combustion )
04	Supply voltage too high	Supply voltage too high.	Check the vehicle electrical system
05	Flame was detected prior to combustion	Flame detected before starting fuel supply	1) The reason is in the air intake or in the exhaust pipe. 2) The reason is in the fuel system. 3) Check the glow plug electrical system
06	Heating unit overheated	Heater overheated
07	Heating unit interlocked	Heater blocked
08	Metering pump short circuit	Metering (fuel) pump - short circuit	Check electrical fuel system
09	Combustion air fan short circuit	Combustion chamber fan - short circuit
0a	Glow plug / flame monitor short circuit	Glow Pin / Flame Sensor - Short Circuit
0b	Circulation pump short circuit	Circulation (water) pump - short circuit (or motor overload has occurred)	Circulation pump short circuit
0c	No comunication to air condition	No communication with air conditioning unit
0d	Green LED short circuit	Green LED - short circuit
0e	Yellow LED short circuit	Yellow LED - short circuit
0f	No configuraton signal	No configuration signal
10	Solenoid valve short circuit	Solenoid valve (water) - short circuit	Check coolant switch valve electrical system
eleven	ECU wrong coded	ECU - incorrectly encoded or improperly installed heater (regarding fuel type)	This error can only occur in vehicles equipped with an AN or LIN bus : compare the data on the nameplate with the fuel type of the vehicle. Proceed further according to the data producer vehicle

12	W-bus comunication failure	W-Bus - communication error
13	Vehicle fan relay short circuit	Interior Fan Relay - Short Circuit	The reason in the car fan area
fourteen	Temperature sensor short circuit	Coolant temperature sensor - short circuit
fifteen	Combustion air fan blocked	Combustion chamber fan - blocked	The reason is in the supercharger or in the combustion air intake system (clogged pipe)
16	Battery main switch short circuit	Main power switch - short circuit
17	Invalid air flow reduction	Error reduction in air flow
19	Glow plug / electronic ignition short circuit	Incandescent pin / electronic ignition - short circuit	Check glow plug electrical system
1a	Flame sensor short circuit	Flame Sensor - Short Circuit
1b	Overheat short circuit	Overheating sensor - short circuit	Check electrical system of temperature sensors
1d	Solenoid valve shed test short circuit	Solenoid valve - short circuit detected
1e	Fuel sensor short circuit	Sensor fuel - short circuit
1f	Nozzle stock heating short circuit	Fuel Injector Heater - Short Circuit
twenty	Operation indicator short circuit	Operation Indicator - Short Circuit
21	Flame indicator short circuit	Flame Detector - Short Circuit
22	Reference resistance wrong	Exemplary resistance - an incorrect value
23	Crash interlock activated	Lock when the accident - activated
24	Car is almost out of fuel	Low levels of fuel
25	Fuel pre heating short circuit	Fuel Preheater - Short Circuit
26	PCB temperature sensor short circuit	Control unit temperature sensor - short circuit
27	Ground contact to the ECU broken	Control Unit Grounding - Broken
28	Board net energy manager low power voltage	Onboard Power Distribution - Low Voltage
29th	Fuel priming still not done	Fill fuel still runs
2a	Error in the radio telegram	Error in the radio telegram (error in the radio data packet )
2b	Telestart still not programmed	Telestart has not yet been programmed
2c	The pressure sensor has short circuit	The pressure sensor has a short circuit

2d	The combustion-air fan power circuit is defective	Malfunction in the supercharger circuit (the number of revolutions of the supercharger motor rotation is lower than the required value)	Clear the error, unlock the heater, restart the heater
2e	The glow / ignition- element power circuit is defective	Malfunction in a chain of a glow pin (resistance of a glow pin is out of admissible values)	In the event of a repeated occurrence (> 3): the cause is air intake or the exhaust pipe. Check the electrical circuit pin filament
2f	Flame abort	Flame break	In case of frequent occurrence (> 10 times): 1) The reason is the air intake or in the exhaust pipe. 2) The reason is in the fuel system. 3) Check the pump dispenser . 4) Check the electrical system of the glow plug.
32	No start from control idle period	Does not start from Adjustable Pause mode
33	Flame monitor signal invalid	Flame sensor - invalid value
34	Default values entered	The values of the default entered
35	EOL programming has not been carried out	EOL programming failed
36	Thermal fuse short circuit	Short -circuit fuse fuse
37	Coolant temperature during initial start-up too high	Coolant temperature too high during initial commissioning	This error can only appear when the heater is first put into operation (at the vehicle manufacturer): 1) Let the coolant circuit cool down and try putting the heater back into operation. 2) Check the electrical system of the temperature sensors.
38	Initial starting attempt failed	First attempt to start failed	In case of frequent occurrence (> 10 times): 1) The reason is the air intake or in the exhaust pipe. 2) The reason is in the fuel system. 3) Check the pump dispenser . 4) Check the electrical system of the glow plug.
39	Initial starting attempt failed - not restarting	The first attempt to start failed (no restart)	In case of frequent occurrence (> 3 times): 1) The reason is the intake of air or in the exhaust pipe. 2) The reason is in the fuel system. 3) Check the pump dispenser . 4) Check the electrical system of the glow plug.
3a	W-bus / LIN-bus shortcircuit to earth	Short circuit in the bus W - Bus / LIN - Bus	Malfunction in the field of switching of the bus W - Bus
3c	Internal control unit error 60	Internal error of control unit 60	Clear the error, unlock the heater, restart the heater
3d	Internal control unit error 61	Internal error of control unit 61	Clear the error, unlock the heater, restart the heater
3e	Internal control unit error 62	Internal error of control unit 62	Clear the error, unlock the heater, restart the heater
3f	Wrong version dataset loaded	I uploaded the wrong software software	Clear the error, unlock the heater, restart the heater
45	Short circuit / open circuit of heating relay	Relay block error (open / short heater relay)
4c	Overvoltage component protection	High voltage for component protection	Check the vehicle electrical system
fifty	User interface idle-mode (no-communication)	The control panel has no connection
51	User interface has communication fault	The control panel has a communication error
52	User interface send no defined operating mode	The control panel sends an undefined mode of operation
53	Heater fan status message negative	Heater Fan - Negative Message
54	Heater fan status bus has short circuit to UB	Heater Fan - Short to Ground
55	Temperature water sensor failure	Coolant temperature sensor - defective
56	Temperature water sensor short circuit to UB	Coolant temperature sensor - short to ground
57	Overheating water temperature sensor	Coolant temperature sensor - overheating
58	Overstepping water temperature sensor gradient	Coolant temperature sensor - wrong gradient
59	Overheating blow temperature sensor	Fan Temperature Sensor - Overheat
5a	Overstepping low temperature sensor gradient	Temperature Sensor - Low Gradient
5b	Overheating pcb temperature sensor	PCB Temperature Sensor - Overheating
5c	Overstepping pcb temp sensor gradient	PCB Temperature Sensor - Incorrect Gradient
5d	Cabin temperature sensor failure	Interior temperature sensor malfunction
5e	Flame detector gradient failure	Incorrect flame sensor gradient
5f	Emergency cooling	Emergency cooling
62	Customer specific fault 3	Overflow timer value DP _ max	In case of frequent occurrence (> 3 times): 1) The reason is the intake of air or in the exhaust pipe. 2) The reason is in the fuel system. 3) Check the pump dispenser . 4) Check the glow plug electrical system
81	EOL checksum error	Error control the amount of EOL	Clear the error, unlock the heater, restart the heater
82	No start during test-run	Doesn't start during test run	This error can only appear when the heater is first put into operation (at the vehicle manufacturer ): 1) The reason is in the air intake or in the exhaust pipe. 2) The reason is in the fuel system. 3) Check the pump dispenser . 4) Check the electrical system of the glow plug
83	Flame failure	Bad flame (During the warm-up cycle, the flame went out more times ( FAZ ) than programmed in the EEPROM )	In case of frequent occurrence (> 3 times): 1) The reason is the intake of air or in the exhaust pipe. 2) The reason is in the fuel system. 3) Check the pump dispenser . 4) Check the glow plug electrical system
84	Operating voltage too low	Supply voltage too low.	1) Check with a simple formula: is the warm-up time longer than the trip time? 2) Check the power supply to the onboard network of the car

85	Flame was detected after combustion	Flame detection after combustion
87	Heater lock-out permanent	Permanent heater lock	1) Release the lock, try to restart the heater. 2) To consider further messages about errors and to follow the recommendations
88	Fuel pump failure	Dosing (fuel) pump - open circuit (or the circuit closes to +)	Check electrical fuel system
89	Combustion air fan interruption	Combustion chamber fan - open circuit (or the circuit closes to +)	Check supercharger electrical system
8a	Glow plug / flame monitor interruption	Glow Pin / Flame Sensor - Open
8b	Circulation pump interruption	Circulation (water) pump - open circuit (or the circuit closes to +)	Check the coolant circuit electrical system
8d	Green LED interruption	green LED - open
8e	Yellow LED interruption	Yellow LED - open
90	Solenoid valve interruption	Solenoid valve - open circuit (or the circuit closes to +)	Check coolant switch valve electrical system
91	Control unit locked or coded as neutral	The control unit is locked or encoded as neutral
92	Command refresh failure	Error updating a command (Error in processing commands. If there is no functioning, or shutdown by mistake)	Malfunction in the field of switching of the bus W - Bus
94	Temperature sensor interruption	Temperature sensor - open circuit (or the circuit closes to +)	Check electrical system of temperature sensors
95	Combustion air fan tight	Combustion chamber fan - difficult turning
97	Overheat sensor position wrong	Overheat sensor - invalid value
98	Fault 152 (Power supply interruption)	Power outage
99	Glow plug / electronic ignition unit interruption	Incandescent pin / electronic ignition - open circuit (or the circuit closes to +)	Check glow plug electrical system
9a	Flame sensor interruption	Flame Sensor - Open
9b	Setpoint transmitter invalid	Setpoint Transmitter Error
9c	Intelligent undervoltage detection	Intelligent low voltage detection	1) Check with a simple formula: is the warm-up time longer than the trip time? 2) Check the power supply to the onboard network of the car
9d	Solenoid valve shed test interruption	Solenoid valve - an open circuit was detected during the test
9e	Fuel sensor interruption	Fuel Sensor - Interrupt
9f	Nozzle stock heating interruption	Preheater fuel injector - breakage
a0	Operating indicator interruption	Operation Indicator - Interruption
a1	Flame indicator interruption	Flame Indicator - Interrupt
a5	Fuel pre heating interruption	Pre -heating fuel - interrupt
a6	PCB temperature sensor interruption	Control Unit Temperature Sensor - Interrupt
a8	Communication board net energy manager error	Onboard Energy Distributor - Error
aa	Send on W-Bus not succeed	Sending data via W - Bus - failed (even after a 4-fold retry, no response or noisy response)	Malfunction in the field of switching of the bus W - Bus
ab	Overheat sensor interruption	Overheating sensor - open circuit (or the circuit closes to +)	Check electrical system of temperature sensors
ac	The pressure sensor failure	Pressure Sensor - Error
b6	Thermal fuse interrupted	Fuse fuse interrupted
ff	Unknown error code	Unknown error	There are 3 cells in the TTC for storing errors; with ff , there are no errors.

Comments: 0