Baxi boiler showing E119 in Coventry? It is the low water pressure code. Checking the gauge, topping up and spotting a leak.
Note the reading first. A slow drift down over months is normal; a drop in days is a leak.
Baxi boilers use a filling loop or a built-in key. Open slowly, stop at the right pressure, close it fully.
A dripping pipe through the wall usually means the relief valve or expansion vessel, not a leak inside your walls.
Finding the leak once costs less than the corrosion that months of refilling causes.
No, low pressure only stops the boiler running. Smell gas? Leave the house, do not use switches, and call the National Gas Emergency line on 0800 111 999. A fault code is never a gas leak, but a smell always is.
Reset after filling. If it persists with a good pressure reading, the pressure sensor itself may be the fault.
Usually, for a pressure fault - it says little about the rest of the boiler.
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