Instruction manual DXB heater
page 19
7
Problem solving
7.1 General
When it turns out that the problem is
not
caused by the external circumstances (i.e. no electric
supply power or no oil), please take the following instructions into account. Please remember
the built in waiting times of the heater (do not react too soon!) and the code on the display on
the electronic circuit board.
To simplify the investigation of the failing heater please check first:
•
the fuses as well as the wires and plugs in the heater for possible loose contacts.
•
Use first the service/reset button to put the heater in run mode, try later the room thermostat.
7.2 Error codes
Volatile lock out :
Can only be reset by hand
A
/
0
Blinking
Internal failure
Defective print board
A
/
1
Blinking
No flame
Within 5 sec flame, then flame failure: Cause 1
No flame: Cause 2
A
/
4
Blinking
Too many flame
failures
Too many flame failures on ionization: Cause 1, 5
A
/
5
Blinking
Internal error
Too many problems with power supply. Try other Fase if
possible. Control unit defective, change control unit.
A
/
6
Blinking
Internal error
Too many problems with power supply. Try other Fase if
possible. Control unit defective, change control unit.
A
/
7
Blinking
Flame
Flame detection when there should not be a flame
A
/
8
Blinking
Vane switch / Fan Fan does not run: Cause 6
Fan runs: Cause 7
Non volatile lockout:
will disappear when the error is cleared.
E
/
0
Blinking
Internal defect
Defective print board
E
/
2
Blinking
Selection
resistance
Heater recognition does not work: Cause 8
E
/
3
Blinking
Selection
resistance
Heater recognition does not work: Cause 8
E
/
4
Blinking
Flame safety
Flame detection when there should not be a flame: Cause 10
E
/
8
Blinking
Fan / Vane switch Fan does not run: Cause 6
Fan runs: Cause 7
E
/
9
Blinking
Reset error
Too many switches on reset button: Cause 9
