Emergency
E00-738 on Worcester Bosch 24/28/35 CDi MkII

Your boiler has detected an issue with the fuel delivery system specifically related to the propane gas supply, preventing it from igniting safely.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

What the manual says

Manufacturer manual

Burner Injector – Propane

From this model's manual
Verified against the Worcester Bosch/Worcester Bosch 24 28 35 Cdi Mkii Rsf installation & service manual.
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 is a emergency severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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All 27 fault codes on the 24/28/35 CDi MkII

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

ABCDEE00 716E00-711E00-716E00-720E00-721E00-730E00-737E00-741E01 612E01-840E80-450E80-451FGHIJKtaehrevO yramirPtluaF rosneStuokcoL renruB

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