Low
Fd on Worcester Bosch 537i

You have accidentally pressed the reset button on your boiler while it was already running normally, so it is just pausing to restart itself.

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

Reset button pressed by mistake.

From this model's manual
Verified against the Worcester Bosch 537i installation & service manual, page 46.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Wait 5 to 10 minutes for the boiler to complete its automatic restart cycleEnsure no other buttons are being held down or obstructedOnce the display returns to normal, resume using your heating and hot water as usual

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