What the manual says
Manufacturer manualBUS connection fault - Not used on this model
Shared across the Alpha Intec² range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
DIY fix possible
Switch the boiler off at the power supply for 30 secondsTurn the power back on to allow the boiler to perform a full system resetCheck if the error code clears from the display
Find a Gas Safe engineer
Search the official register →
Boiler cover options
Avoid the next call-out bill
Monthly cover means no unexpected bills when your boiler breaks down.
Approved partner
Get a quote →
Domestic Appliance Guard
Unlimited call-outs, 24/7 helpline, no price-hike promise
Affiliate links. We may earn a commission at no extra cost to you.
Related fault codes
All 61 fault codes on the Intec 50CS
Seeing a different code? Every code this model can display, in one place.