BoilerFaultCodesVokera E05 Fault Code
The Vokera E05 fault code means: your boiler's fan, which safely clears exhaust gases from the system, is not spinning at the correct speed or reporting its status correctly.. It appears on 2 Vokera models in our database.
Technical description: Fan fault / Hall sensor fault
What causes the Vokera E05 fault?
This fault occurs when the boiler's internal computer detects that the fan is not spinning fast enough to safely extract exhaust fumes. The most common reasons are a build-up of dust and debris within the fan motor or a failure of the sensor that monitors the fan's rotation. If the fan cannot reach the required speed, the boiler will automatically shut down as a safety precaution.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Avoid the next call-out bill
A cover plan would handle faults like E05: no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.
Vokera models that show the E05 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera E05 fault code information on this page is sourced and cross-checked against the official Vokera service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 31 August 2026