E 38 Medium

Chaffoteaux E 38 Fault Code

Also written as E38 — same fault.

The Chaffoteaux E 38 fault code means: your boiler has been locked out because the reset button has been pressed too many times in a short period, and it now needs to be left alone to reset its internal memory.. It appears on 3 Chaffoteaux models in our database.

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description: Reset pressed 5 times within 15 minutes

DIY fix possible

Switch the boiler off at the fused spur or mains isolation switchWait for at least 15 to 20 minutes to allow the electronic lockout timer to clearSwitch the power back on and see if the boiler resumes normal operation

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Chaffoteaux models that show the E 38 fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Chaffoteaux E 38 fault code information on this page is sourced and cross-checked against the official Chaffoteaux service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 31 August 2026