Fault
code
Fault (group)
Additional information during PC
diagnostic
Troubleshooting
F 01
No start/no flame formation
02
Even after the restart, no flame has
formed
82
No start in test
83
Maximum feed rate exceeded
Check fuel supply
(tank empty, lines blocked).
Check exhaust temperature sensor for
deposits from outside through exhaust fitting
and clean carefully if necessary.
Check evaporator mount and replace if
necessary.
F 02
Flame abort
03
The flame has gone out during operation
and has not reformed after a restart attempt
Check fuel supply
(tank empty, lines blocked).
Check exhaust temperature sensor for
deposits from outside through exhaust fitting
and clean carefully if necessary.
Check evaporator mount and replace if
necessary.
F 03
F 04
Under-voltage or over-voltage
Premature flame detection
84
The voltage was less than 10.5 V or 20.5 V
for longer than 20 seconds
04
The voltage was more than 16 V or 32 V for
longer than 6 seconds
05
The exhaust temperature sensor recognized
a flame before combustion had started
Check exhaust temperature sensor and
replace if necessary.
F 05
Not available
F 06
Not available
F 07
Fuel pump defective
88
Open circuit in fuel pump
08
Short circuit in fuel pump
Check electrical wiring and fuel pump and
replace if necessary.
F 08
Open circuit/short circuit/
overloading/blockage in drive
motor
09
Short circuit in drive motor
89
Open circuit in drive motor
15
Blocking guard in drive motor
95
Overload protection in drive motor
Eliminate cause of blockage/sluggishness
Check magnets of heating air fan and replace
drive unit (drive motor with combustion and
heating air fan) if necessary
F 09 Glow plug defective
19
Short circuit in glow plug
99
Open circuit in glow plug
Check glow plug and replace if necessary.
F 10 Overheating
06
Heater overheated - overheat
temperature sensor
5B
Heater overheated - PCBs - temperature
sensor
17
Temperature gradient exceeded –
overheat temperature sensor
5C
Temperature gradient exceeded - PCBs -
temperature sensor
Find and eliminate cause of overheating in
hot air guide.
Possible causes:
Pressure loss too high, line kinked, air outlet
closed, soiling of overheat temperature sensor
F 11
Not available
F 12
Not available
F 13
Not available
F 14
Overheat Temperature
Sensor defective
1B
Short circuit in overheat temperature
sensor
AB
Open circuit in overheat temperature
sensor
Check overheat temperature sensor and
replace if necessary.
23
Air Top Evo 40 / Air Top Evo 55 Service Manual
Содержание Air Top Evo 40
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