Burner Start-Up Cycle; Start-Up Cycle Diagnostics; Operating Fault Diagnostics - Riello 40 Instrucciones De Instalación, Uso Y Mantenimiento

4.6 BURNER START-UP CYCLE

Normal
Thermostat
Motor
Ignition transformer
Valves
Flame
Lock-out
max. 2s
When flame-failure occurs during working, shut down takes place within one second.

4.7 START-UP CYCLE DIAGNOSTICS

During start-up, indication is according to the followin table:
Sequences
Pre-purging
Ignition phase
Operation, flame ok
Operating with weak flame signal.
Electrical supply lower than
Lock-out
Extraneous light
Index: Off

4.8 OPERATING FAULT DIAGNOSTICS

The control box has a self-diagnostic system, which easily allows identifying the operating faults (RED LED
signal).
To use this function, wait at least ten seconds from the safety lock out, and then press the reset button for a
minimum of 3 seconds.
After releasing the button, the RED LED starts flashing as shown in the diagram below.
RED LED on
10s
wait at least
The LED gives of a blink code every 3 seconds.
The blink codes give the information about the possible faults, as follows:
2737
40s
COLOUR CODE TABLE
~
170V
Yellow
Press reset
> 3s
for
Lock-out, due to ignition failure
max. 2s
Green Red
Blink code interval
8 GB
40s 3s
Colour code
3s
Blink code
D4172