Main Heating · Combi 25/30 Eco

E119 boiler fault code

Main Combi 25 Eco & 30 Eco (G.C. 47 467 01/03)

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What E119 means

Water pressure switch not operated — primary pressure below 0.5 bar.

Gas Safe engineer: If pressure does not hold or the code remains after repressurising and one reset, contact a Gas Safe registered engineer.

A boiler fault code alone is not a gas or carbon-monoxide emergency. If you smell gas, a CO alarm sounds, anyone feels unwell, or there is an unsafe flame, leave and call 0800 111 999 from outside.

Safe check

If the displayed pressure is below 0.5 bar, follow the user guide to repressurise the system. Then use the normal external control to reset once. Do not remove any panel or casing.

When to contact an engineer

If pressure does not hold or the code remains after repressurising and one reset, contact a Gas Safe registered engineer.

Source and provenance

Main Combi Eco range User's Guide · Comp No 5119467 Iss 8 (9/12) · §6.3 Fault Indication and Table of Error Codes, printed p. 9; troubleshooting chart, printed p. 4; §3.1 Repressurising, printed p. 6
user's guide
Comp No 5119467 Iss 8 (9/12)

Renting? Report it to your landlord or housing provider first. They are responsible for gas safety and boiler repairs, and the repair should not cost you.

Did this fix it?

After: Repressurise the boiler