Ravenheat CSI 120 Fault Codes
Combi Natural GasLPG 35 kW 2001-2009 Discontinued
GC Number: 47-581-01
Replaced by: CSI 150
The fault code is already on your display
Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →
Most common fault codes
01 02 04
Your boiler has failed to light, which means you will not have any heating or hot water until the issue is resolved.
Gas Safe engineer required · £150-380
Your boiler has detected an internal temperature issue and has locked itself out to prevent overheating.
May be DIY safe · £120-250
Your boiler has sensed that it is getting too hot and has shut itself down to prevent damage or safety issues.
Gas Safe engineer required · £90-180
All 8 fault codes
Ravenheat CSI 120 is discontinued — time for a new one?
Parts for discontinued models can be hard to find and expensive. A new A-rated boiler could save you money on both repairs and energy bills.
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