BoilerFaultCodesVokera Test 2 Fault Code
Also written as TEST2 — same fault.
The Vokera Test 2 fault code means: your boiler is unable to move the water around the system, which means it cannot heat your home or provide hot water.. It appears on 1 Vokera model in our database.
Technical description: Pump failure
What causes the Vokera Test 2 fault?
This fault occurs when the boiler's internal pump fails to circulate water, leading to a rapid build-up of heat that the system cannot shed. The most common reasons are a mechanical seizure of the pump motor after a period of inactivity or an electrical failure where the component no longer receives power from the control board.
This issue frequently appears during the first cold snap of autumn when a pump that has been idle all summer fails to spin back up.
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 →Vokera models that show the Test 2 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Vokera Test 2 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 27 April 2026