F92
FAULT CODE
Glow-worm
Gas Type Mismatch
High Severity
Engineer Required
The boiler configuration does not match the connected gas supply.
Step-by-Step Fix Guide
-
Step 1 Engineer only
A Gas Safe engineer must verify gas type and boiler settings
Gas Safe Reminder
Work on gas appliances must be carried out by a Gas Safe registered engineer. The steps above cover safe checks a homeowner can perform - any internal component replacement requires a qualified professional. If in doubt, always call an engineer.