Diagnostics Of Cause Of Fault - Riello 20047690 Installation, Use And Maintenance Instructions

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.
Error code table
Red blink code of fault
signal lamp
2 x blinks
4 x blinks
5 x blinks
6 x blinks
7 x blinks
8 x blinks
9 x blinks
10 x blinks
12 x blinks
13 x blinks
14 x blinks
15 x blinks
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).
20051011
Operation, indication, diagnostics
Possible cause
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
Extraneous light on burner startup
Time supervision air pressure switch
– Air pressure switch welded in working position
Actuator position not reached
– Actuator faulty
– Wrong adjustment of cam
– Actuator defective or blocked
– False connection
– Misadjustment
Too many losses of flame during operation (limitation of repetitions)
– Faulty or soiled fuel valves
– Faulty or soiled flame detector
– Poor adjustment of burner
Free
Free
Wiring error or internal error, output contacts, other faults
Valve proving
– Fuel valve 1 leaking
Valve proving
– Fuel valve 2 leaking
Error in connection with valve closure control POC
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
42
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.
GB
Tab. Z