Riello 20047690 - Diagnostics of Cause of Fault

20051011
42
GB
Operation, indication, diagnostics
7.5.2 Diagnostics of cause of fault
After lockout, the red fault signal lamp remains steady on. In that
condition, visual diagnostics of cause of fault according to the error
code table can be activated by pressing the lockout reset button
(info button) for more than 3 seconds.
Pressing the lockout reset button (info button) again for at least 3
seconds, interface diagnostics will be activated.
If, by accident, interface diagnostics has been activated, in which
case the slightly red light of the signal lamp flickers, it can be deac-
tivated by pressing again the lockout reset button (info button) for
> 3 seconds.
The instant of switching over is indicated by a yellow light pulse.
Tab. Z
During the time the cause of fault is diagnosed, the control outputs
are deactivated
– Burner remains shut down
– External fault indication (alarm) at terminal X2-03, pin 3 steady
on
Diagnostics of cause of fault is quit and the burner switched on
again by resetting the burner control.
Press the lockout reset button (info button) for about 1 second
(< 3 seconds).
Error code table
Red blink code of fault
signal lamp
Possible cause
2 x blinks No establishment of flame at the end of the safety time
– Faulty or soiled fuel valves
– Faulty or soiled flame detector
– Poor adjustment of burner, no fuel
– Faulty ignition equipment
4 x blinks Extraneous light on burner startup
5 x blinks Time supervision air pressure switch
– Air pressure switch welded in working position
6 x blinks Actuator position not reached
– Actuator faulty
– Wrong adjustment of cam
– Actuator defective or blocked
– False connection
– Misadjustment
7 x blinks Too many losses of flame during operation (limitation of repetitions)
– Faulty or soiled fuel valves
– Faulty or soiled flame detector
– Poor adjustment of burner
8 x blinks Free
9 x blinks Free
10 x blinks Wiring error or internal error, output contacts, other faults
12 x blinks Valve proving
– Fuel valve 1 leaking
13 x blinks Valve proving
– Fuel valve 2 leaking
14 x blinks Error in connection with valve closure control POC
15 x blinks Error code

15 (e.g. depending on type of program module)
Error code 20: Failure of gas pressure switch-min
Error code 22: Error of safety loop