BoilerFaultCodes.com

Ravenheat CSI 120 Fault Codes

Combi Natural GasLPG 35 kW 2001-2009 Discontinued

Replaced by: CSI 150

All 8 fault codes

Code Severity Plain English
01 High Your boiler has failed to light, which means you will not have any heating or hot water until the issue is resolved.
02 High Your boiler has detected an internal temperature issue and has locked itself out to prevent overheating.
04 High Your boiler has sensed that it is getting too hot and has shut itself down to prevent damage or safety issues.
12 High Your boiler's internal thermometer for the central heating system has stopped working correctly, which means the system cannot monitor or control the water temperature.
17 High Your boiler has stopped working because the fan is not receiving the correct electrical power needed to safely clear exhaust fumes.
28 High Your boiler has detected that there is not enough water pressure or flow to operate safely, which is preventing your heating and hot water from working.
30 High Your boiler has shut down because a sensor has detected that the exhaust gases are getting too hot or the sensor itself has failed.
31 High Your boiler has detected that the exhaust gases are not being monitored correctly and has shut down for safety.

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