Robur GAHP Line AR Series, Installation, Use And Maintenance Manual

Page: 99 / 100

GAHP-AR – Installation, start-up, use and maintenance manual
96
Edition: 2014-08
E 684
FAULTY CONNECTION TRANSFORMER OR 24 Vac FUSES
CODE GENERATED BY : Damage to one of the 2 24-0-24 Vac transformer fuses, or one of 24-0-24 Vac wires to the board not
supplying current.
RESET METHOD : Check fuses and 24-0-24 Vac electrical power connections on the board. Reset may be carried out via
the S61 board, Parameter 1 (or via DDC). If the code persists or occurs again, contact Robur TAC.
E 685
INCORRECT MODULE TYPES (from menu 6)
CODE GENERATED BY : The module type set (from menu 6) does not correspond to the one managed by the board.
RESET METHOD : Reset occurs automatically when the correct parameters are entered.
If the code persists, contact Robur TAC.
E 686 - and 687 - and 688 - and 689
MEMORY TEST UNSUCCESSFUL
CODE GENERATED BY
: Processor error.
RESET METHOD
: Contact Robur TAC.
E 690
AMBIENT TEMPERATURE SENSOR DEFECTIVE
CODE GENERATED BY : Interruption or short circuit of ambient temperature sensor.
RESET METHOD : Reset may be performed via S61 board, menu 2, Parameter 1 (or via DDC). If the code persists, contact
Robur TAC.
E 691
BOARD DEFECTIVE
CODE GENERATED WHEN : One of the following is absent: serial number of board, hardware version code or encryption key written
during board test.
RESET METHOD : Contact ROBUR TAC.
Table 27 - Operating codes generated by the electronic control board S61 (firmware release 3.0
27
).
In the table, TAC = Robur authorized Technical Assistance Centre.
The following figure shows a reference scheme of the unit ignition system.
Figure 39 - Ignition transformer, igniter assembly and flame sensor.
LEFT SIDE OF
COMBUSTION CHAMBER
1
2
3
4
6
1
2
3
4
5
5
6
IGNITION TRANSFORMER
IGNITION CABLES
FLAME SENSOR
ANTI-SPARK INSULATORS
IGNITER
IGNITER GASKET
NOTE: SOME DETAIL
HAS BEEN REMOVED
FOR CLARITY