BoilerFaultCodesWhat the manual says
Manufacturer manualNo signal from fan
From this model's manual
Verified against the Vokera Pinnacle installation & service manual, page 26.
What causes this fault?
This fault occurs when the boiler's computer can no longer detect or control the speed of the fan responsible for clearing waste gases. It is usually caused by the fan motor burning out or a loose electrical connection between the fan and the main control board. Without the fan running at the correct speed, the boiler shuts down immediately as a safety precaution to prevent dangerous fumes from building up.
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 E28: 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.