Low
50 on Worcester Bosch 537i

Your boiler is displaying a status code indicating it is currently running at a specific heat output level rather than signaling a fault.

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

Heat output 15.1 kW / Heat input 15.3 kW (RD532i L.P.G) or Heat output 18.6 kW / Heat input 18.8 kW (RD537i L.P.G)

From this model's manual
Verified against the Worcester Bosch 537i 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 fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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