Riello 663 T80 Installation, Use And Maintenance Instructions page 40

Problems - Causes - Remedies signalled by LED indicators
No. Faults
55 Internal processor fault
56 UV: false flame during operation False flame detected before ignition
57 FR: false flame during operation False flame detected before ignition
58 T8 inlet fault
59 Internal hardware fault
60 Local reset fault
61 Open POC fault
62 UV: strong UV flame fault
63 Internal hardware fault
20167399
Cause
Internal fault
The system detected the presence of
voltage on T8 at the wrong moment or there
is no voltage when necessary
Internal fault
Local reset button pressed for more than 10
seconds or reset button locked
The fuel valve is open at the wrong moment Check the wiring
The scanner is too close to the flame
Internal fault
38 GB
Solution
Replace the control device
Check the scanner
Check the wiring
Check the scanner
Make sure that earthing is appropriate
Check the wiring
Check the actuator
Replace the control device
If the problem persists, replace the control
device
Increase the distance between the scanner
and the flame OR use an orifice to reduce
the view field
Replace the control device
Tab. P