Low
201 on Worcester Bosch 35 RSF

Your boiler is simply indicating that it is currently busy heating your hot water.

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.

Technical description

The boiler is in domestic hot water (DHW) mode

DIY fix possible

Turn off any running hot water tapsCheck if the message disappears once the taps are closedNo action is required as this is an operational status, not a fault

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