What the manual says
Manufacturer manualNone
Shared across the Maxim 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
Locate the domestic hot water (DHW) pre-heat button or dial on the front control panel.Press the button or adjust the dial to switch the pre-heat function to the 'Off' position.Monitor the boiler display to ensure the indicator light for pre-heat has deactivated.
Find a Gas Safe engineer
Search the official register →
Boiler cover options
Avoid the next call-out bill
A cover plan would handle faults like DHW pre-heat function: no call-out fees, no surprise bills.
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.
All 11 fault codes on the Maxim
Seeing a different code? Every code this model can display, in one place.