BoilerFaultCodesChaffoteaux E 06 Fault Code
Also written as E06 — same fault.
The Chaffoteaux E 06 fault code means: your boiler has automatically triggered its frost protection mode because the internal temperature has dropped too low.. It appears on 1 Chaffoteaux model in our database.
Technical description: Anti freezing system, pump and burner on
DIY fix possible
Check that the boiler is switched on and the room thermostat is not set to a very low temperatureEnsure the boiler is not in summer mode if the weather is freezingWait for the boiler to cycle through its protection phase; the code should clear once the internal temperature rises
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Avoid the next call-out bill
A cover plan would handle faults like E 06: no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.
Chaffoteaux models that show the E 06 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Chaffoteaux E 06 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 7 July 2026