F54
FAULT CODE
Glow-worm
Gas Pressure Too Low
High Severity
Engineer Required
The gas supply pressure to the boiler is below the minimum required.
Step-by-Step Fix Guide
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Step 1
Check other gas appliances work
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Step 2 Engineer only
If gas supply is OK, call a Gas Safe engineer to check the gas valve and supply pressure at the boiler
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.