Ideal Mexico CF3 40 & 50 Fault Codes

Regular Natural Gas 11.72-14.65 kW 1997-2002 Discontinued

GC Numbers: 41-409-5141-409-52

Replaced by: Mexico HE or Mexico Slimline

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

Code	Severity	Plain English	DIY
47	High	Your boiler is unable to start the small pilot flame needed to ignite the main heating system.	Engineer
48	High	Your boiler is failing to keep the pilot light burning after you let go of the ignition button, meaning the heating cannot start.	Engineer
49			Engineer

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