E119
FAULT CODE
Main Heating
Low Water Pressure
Low Severity
DIY Check Possible
System pressure has dropped below 0.5 bar. Main Heating boilers share the same fault code system as Baxi — E119 cannot be cleared by resetting alone.
Step-by-Step Fix Guide
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Step 1
E119 cannot be cleared by pressing reset — first increase the pressure
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Step 2
Locate the filling loop and slowly open the valves until pressure reaches 1.0–1.5 bar
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Step 3
Close the filling loop — the boiler should restart automatically
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Step 4
If pressure drops again quickly, contact a Gas Safe engineer to check for leaks
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.