Worcester Bosch · Greenstar i System Compact ErP

CE 207 boiler fault code

Greenstar 27i / 30i System Compact ErP

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What CE 207 means

System water pressure too low.

Gas Safe engineer: If pressure drops again or the code remains after repressurising, contact a Gas Safe registered engineer.

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 pressure gauge reads below 1 bar, top up to about 1.5 bar using the filling loop shown by your installer and the user guide. Do not remove any panel or casing. If pressure drops again or the code remains, contact a Gas Safe registered engineer. After repressurising, press Reset once only.

When to contact an engineer

If pressure drops again or the code remains after repressurising, contact a Gas Safe registered engineer.

Source and provenance

Greenstar i System Compact ErP Installation & Service · 6 720 813 280 (2015/07) · §8.5 status/fault codes, printed pp. 62–63; Tables 35–36 locking/blocking codes, printed pp. 70–71
installation and service instructions
2015/07 · 6 720 813 280
Greenstar i System Compact ErP User Instructions · 6 720 813 281 (2014/09) · §4 System Pressure, printed p. 11
user instructions
2014/09 · 6 720 813 281

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