Riello RS 64/M MZ Installation, Use And Maintenance Instructions page 42

Problems - Causes - Remedies signalled by LED indicators
No. Faults
34 Not used
35 Internal processor timeout
36 Internal processor timeout
37 Combustion air check timeout
38 Internal processor timeout
39 Internal processor timeout
40 Internal hardware fault
41 Internal hardware fault
42 Main processor fault
43 Supervisor processor fault
44 Supervisor processor timeout
45 Off-specification mains voltage
46 Off-specification mains voltage
47 UV: Internal fault
48 Supervisor processor fault
49 Main processor fault
50 Ignition feedback fault
51 Pilot feedback fault
52 Piloted valve feedback fault
53 Actuator feedback waiting time
expired
54 Direct ignition valve feedback
fault
55 Internal processor fault
56 UV: false flame during operation False flame detected before ignition
57 FR: false flame during operation
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
20169372
Cause
Internal fault
Internal fault
The system could not perform verification
tests of the combustion air during the burner
sequence
Internal fault
Internal fault
Internal fault
Internal fault
Internal fault
Internal fault
Internal fault
Off-specification mains voltage/frequency
Off-specification mains voltage/frequency
Internal fault
Internal fault
Internal fault
The system detected the presence of
voltage on T16 at the wrong moment or
there is no voltage when necessary
The system detected the presence of
voltage on T17 at the wrong moment or
there is no voltage when necessary
The system detected the presence of
voltage on T19 at the wrong moment or
there is no voltage when necessary
No actuator feedback on T8 for more than
10 minutes
The system detected the presence of
voltage on T18 at the wrong moment or
there is no voltage when necessary
Internal fault
False flame detected before ignition
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 flame sensor is too close to the flame
Internal fault
40 GB
Solution
Replace the control device
Replace the control device
Check the wiring or the air pressure switch
Replace the control device
Replace the control device
Replace the control device
Replace the control device
Replace the control device
Replace the control device
Replace the control device
Check the mains voltage level or the
frequency. Contact the factory if the
problem persists
Check the mains voltage level or the
frequency.
Contact the factory if the problem persists
Replace the control device
Replace the control device
Replace the control device
Check the wiring and make sure that the
earthing is appropriate
If the problem persists,
distributor/factory
Check the wiring and make sure that the
earthing is appropriate. If the problem
persists, contact the distributor/factory
Check the wiring and make sure that the
earthing is appropriate
If the problem persists,
distributor/factory
Check the wiring
Check the modulation equipment
Check the wiring and make sure that the
earthing is appropriate. If the problem
persists, contact the distributor/factory
Replace the control device
Check the flame sensor
Check the wiring
Check the flame sensor
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 flame
sensor and the flame OR use an orifice to
reduce the view field
Replace the control device
contact the
contact the
Tab. P