118
FAULT CODE
Baxi
Water Pressure Too Low (EcoBlue)
Low Severity
DIY Check Possible
On Baxi EcoBlue boilers, code 118 indicates system water pressure is too low (below 0.5 bar).
Step-by-Step Fix Guide
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Step 1
Use the filling loop to top up system pressure to 1.5 bar
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Step 2
The boiler should restart automatically
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Step 3
If pressure drops again, check for leaks and contact a Gas Safe engineer
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.