20148653
46
GB
Problems - Causes - Remedies signalled by LED indicators
20
UV: no flame at the end of the
2
nd
safety time (MTFI)
No flame at the end of the 2
nd
safety time
Inspect the system, check the gas pressure,
check the UV flame sensor, check the
wiring, etc.
21
Safety relay fault
Internal fault
Replace the control device
22
Supervisor processor fault
Internal fault
Replace the control device
23
Supervisor memory test fault
Internal fault
Replace the control device
24
Flame loss during the operation
(AUTO)
Loss of flame
Check the flame sensor or the fuel flow line
25
Supervisor processor data
memory fault
Internal fault
Replace the control device
26
Supervisor processor internal
fault
Internal fault
Replace the control device
27
Not used
28
Not used
29
Operating temperature out of
range
Operating temperature below -40
°
C or
above 70
°
C
Bring the control device within the specified
temperature nominal values
30
Code memory fault
Internal fault
Replace the control device
31
FR: external short circuit
External short circuit between T24 and
EARTH
Inspect the flame detection electrode
32
Check mode timeout (manual)
The interval for the manual mode (30
minutes) to end has elapsed
Exit the manual mode correctly to avoid
timeout
33
False flame in stand-by mode
Unexpected flame (false or parasitic flame)
detected during the Stand-by status
Check flame sensor or interference
34
Not used
35
Internal processor timeout
Internal fault
Replace the control device
36
Internal processor timeout
Internal fault
Replace the control device
37
Combustion air check timeout
The system could not perform verification
tests of the combustion air during the burner
sequence
Check the wiring or the air pressure switch
38
Internal processor timeout
Internal fault
Replace the control device
39
Internal processor timeout
Internal fault
Replace the control device
40
Internal hardware fault
Internal fault
Replace the control device
41
Internal hardware fault
Internal fault
Replace the control device
42
Main processor fault
Internal fault
Replace the control device
43
Supervisor processor fault
Internal fault
Replace the control device
44
Supervisor processor timeout
Internal fault
Replace the control device
45
Off-specification mains voltage
Off-specification mains voltage/frequency
Check the mains voltage level or the
frequency. Contact the factory if the
problem persists
46
Off-specification mains voltage
Off-specification mains voltage/frequency
Check the mains voltage level or the
frequency.
Contact the factory if the problem persists
47
UV: Internal fault
Internal fault
Replace the control device
48
Supervisor processor fault
Internal fault
Replace the control device
49
Main processor fault
Internal fault
Replace the control device
50
Ignition feedback fault
The system detected the presence of
voltage on T16 at the wrong moment or
there is no voltage when necessary
Check the wiring and make sure that the
earthing is appropriate
If the problem persists, contact the
distributor/factory
51
Pilot feedback fault
The system detected the presence of
voltage on T17 at the wrong moment or
there is no voltage when necessary
Check the wiring and make sure that the
earthing is appropriate. If the problem
persists, contact the distributor/factory
52
Piloted valve feedback fault
The system detected the presence of
voltage on T19 at the wrong moment or
there is no voltage when necessary
Check the wiring and make sure that the
earthing is appropriate
If the problem persists, contact the
distributor/factory
53
Actuator feedback waiting time
expired
No actuator feedback on T8 for more than
10 minutes
Check the wiring
Check the modulation equipment
54
Direct ignition valve feedback
fault
The system detected the presence of
voltage on T18 at the wrong moment or
there is no voltage when necessary
Check the wiring and make sure that the
earthing is appropriate. If the problem
persists, contact the distributor/factory
55
Internal processor fault
Internal fault
Replace the control device
No
Faults
Cause
Solution
Содержание RLS 100
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