BoilerFaultCodesWhat the manual says
Manufacturer manualFault: Ignition unsuccessful when starting up - Gas meter defective or gas pressure monitor has triggered, air in gas, gas flow pressure too low, thermal isolator device (TAE) has triggered, incorrect gas restrictor, incorrect spare gas valve, fault on the gas valve, multiple plug on PCB incorrectly plugged in, break in cable harness, ignition system (ignition transformer, ignition cable, ignition plug, ignition electrode) defective, ionisation current interrupted (cable, electrode), incorrect earthing of product, electronics defective
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Avoid the next call-out bill
A cover plan would handle faults like F.28: no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.
All 33 fault codes on the Home Regular 12
Seeing a different code? Every code this model can display, in one place.