What the manual says
Manufacturer manualThe overheat thermostat will require manual re-lighting if an overheat condition occurs (the pilot will extinguish).
Shared across the Osprey 2 CFL 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.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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 Overheat condition: 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 9 fault codes on the Osprey CF 125
Seeing a different code? Every code this model can display, in one place.