Low
208 0 on Worcester Bosch 26 CDi Xtra

Your boiler is currently set to a manual testing mode used by engineers to check emissions and is not experiencing an actual part failure.

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

Chimney sweep demand

From this model's manual
Verified against the Worcester Bosch 26 Cdi Xtra 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.

DIY fix possible

Locate the 'Chimney Sweep' button (symbol looks like a small brush or a circle within a triangle) on the control panel.Press and hold the button for at least 5 seconds until the display returns to the normal temperature reading.Switch the boiler off and back on at the fused spur switch to reset the operating mode.

Find a Gas Safe engineer
Search the official register →

Avoid the next call-out bill

A cover plan would handle faults like 208 0: no call-out fees, no surprise bills.

Approved partner
Domestic Appliance Guard
Unlimited call-outs, 24/7 helpline, no price-hike promise
Get a quote →

Affiliate links. We may earn a commission at no extra cost to you.

Related fault codes

Related guides you might find useful