Robur CALDARIA CONDENSING 100, Installation And Use Instructions Manual

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33
10 Error list
In the following tables are listed the Caldaria Condensing 100 series errors. If the error is a type
“A” the
“RESET” button needs to be pressed after eliminating the reason for the failure. If it is an error type “E”, the
boiler will go back to normal operation, with no need to press the “RESET” button, once the reason for the
failure has been eliminated.
10.1 Master board error
ERROR DESCRIPTION ERROR DESCRIPTION
A16 Internal error E02 Flow probe open
A18 Internal error E04 Tank probe open
A20 Internal error E18 Flow probe shorted
E20 Tank probe shorted
E23 Internal error
E24 Internal error
E25 Internal error
E26 Internal error
E32 No_slaves_present
E34 50hz_error
10.2 Slave board error
ERROR DESCRIPTION ERROR DESCRIPTION
A01 Five unsuccessful ignitions attempts E33 Live and neutral reversed error (ni)
A02 Several unsuccessful attempts for flame
ionization problems E34 Reset button error. It has been
pressed more than 7 times in a 30
min interval
A04 Limit thermostat cut off water side (>90°C) E35 Low water flow or low system pressure
(<0.5 bar)
A05
Gas valve coil cut off.
Gas valve connector false contact.
Defective gas valve connector.
Limit thermostat intervention (>90°C) while burner
was on.
E36 Internal error
A06 Missing or poor grounding E37 Flame detection error
A07 Internal hardware error E38 Shorted flue gas sensor
A08 Internal hardware error E39 Flue sensor with open contact
A09 50hz_error E40 50 hz error
A10 Internal hardware error E41 Internal error
A11 Internal software error E42 Shorted flow sensor error
A12 Internal hardware error E43 Open flow sensor error
A16 The contact ot limit thermostat is open with burner
off E44
Shorted return sensor error
A17 Flow sensor error for excessive limit temperature E45 Open return sensor error
A18
Return sensor error for exceeding the limit
temperature
E46
Flow sensor error above
max_flow_temperature
A19
The flue sensor intervened for over temperature
>80°C.( In this case the fan operates at max
speed)
E47
Return sensor error above
max_return_temperature
A20 Flame out too late after closing gas valve E48
Flue sensor error above
max_flue_gas_temperature
(in this error the fan is on at full
speed).
A21 Internal error E49
Missing or poor grounding
A22
The slave had a type “E” error for more than 24
hours
A23 Internal error of the clock
A24 Fan error.
A25 Internal error