Low
265 on Worcester Bosch Greenstar i

Your boiler is perfectly healthy and is simply pausing because it is already warm enough and doesn't need to burn any more gas.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

EMS intelligent controller has forced stand-by-mode due to low heating load. The appliance is compensating for the power required from the EMS room controller and is less than the minimum output of the boiler.

From this model's manual
Verified against the Worcester Bosch/Worcester Bosch Greenstar I installation & service manual, page 37.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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All 79 fault codes on the Greenstar i

Seeing a different code? Every code this model can display, in one place.

0.09U 233200201202203204208226235268270283284305328356357358360363A1 281A7A7 808A8A8 361ACB1b7 257C1 / 264C4 / 273C4 237C6C6 / 215C6 / 216C7 / 214C7 / 217CC 800Condensate pump failedD4 341E2 / 222E2 / 223E2 / 350E2 / 351E9E9 / 276E9 224EAEA / 227EA 227EA 229EA 261EH 258F0 238F0 239F0 258F0 262F0 272F0 280F0 290F1 259F1 263F7F7 228FA / 306FA 306FdFd / 231H03H08H09H11H13h13/H13H29II -internal errort -

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