Riello RS 34/E MZ Installation, Use And Maintenance Instructions page 56

Error
Diagnostic code
code
2
3
4
5
14 #
0
1
64
19 80
20 #
0
1
21 #
0
1
64
22
#
OFF S
0
1
3
5
17
19
21
23
65
67
69
71
81
83
85
87
20068131
Faults - Probable causes - Solutions
Meaning of the REC 27.100A2 system
Valve leak detection test not possible
Valve leak detection test not possible
Valve leak detection not possible
Valve leak detection not possible
POC
POC Open
POC Closed
POC Open - Alarm lockout at start
Fuel pressure, POC - Alarm lockout at start
Pmin
Minimum gas/oil pressure absent
Scarcity of gas - Alarm lockout at start
Pmax/POC
Pmax: Max. gas/oil pressure exceeded
POC: POC open (software version  V02.00)
POC closed (software version  V02.00)
POC Open - Alarm lockout at the start (software version
 V02.00)
Safety circuit/Burner flange
Safety circuit open /Burner flange open
Safety circuit open /Burner flange open - Alarm lockout at
start
Safety circuit open /Burner flange open, extraneous light -
Alarm lockout at start
Safety circuit open /Burner flange open, extraneous light -
Alarm lockout at start
Safety circuit open /Burner flange open, extraneous light -
Alarm lockout at start
Safety circuit open /Burner flange open, extraneous light -
Alarm lockout at start
Safety circuit open /Burner flange open, extraneous light -
Alarm lockout at start
Safety circuit open /Burner flange open, extraneous light,
air pressure, fuel pressure - Alarm lockout at start
Safety circuit /Burner flange open, POC - Alarm lockout at
start
Safety circuit open /Burner flange open, extraneous light,
POC - Alarm lockout at start
Safety circuit open /Burner flange open, air pressure, POC
- Alarm lockout at start
Safety circuit open /Burner flange open, extraneous light,
air pressure, POC - Alarm lockout at start
Safety circuit open /Burner flange open, fuel pressure,
POC - Alarm lockout at start
Safety circuit open /Burner flange open, extraneous light,
air pressure, POC - Alarm lockout at start
Safety circuit open /Burner flange, air pressure, fuel
pressure, POC - Alarm lockout at start
Safety circuit open /Burner flange, extraneous light, air
pressure, fuel pressure, POC - Alarm lockout at start
54
Recommended measures
The valve leak detection is active, but the minimum gas
pressure switch is selected as input for X9-04 (check
parameters 238 and 241)
The valve leak detection is active, but no input has been
assigned (check parameters 236 and 237)
Valve leak detection is active, but 2 inputs have already been
assigned (configure parameter 237 or maximum gas Pressure
switch or POC)
The valve leak detection is active, but 2 inputs have been
assigned (check parameters 236 and 237)
Check if the closure contact of the valve is closed
Check the wiring
Check if the closure contact of the valve opens when the valve
is checked
Check the wiring
Check if the closure contact of the valve is closed
Check that the pressure switch is closed when no pressure is
present from the fuel
Check that there are no short-circuits
Check that there are no line interruptions
Check that there are no line interruptions
Check the wiring.
POC: check if the closure contact of the valve is closed
Check the wiring.
Check if the closure contact of the valve opens when the valve
is checked
Check the wiring.
Check if the contact of the valve opens when the valve is
checked
GB