Medium Warning
30 on Vokera Easi-Heat 29

Your boiler has detected a temporary internal communication error or a potential problem with the fan or air supply that may reset itself or require a manual restart.

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

Technical description

Temporary fault code (Refer to section 7.10)

What causes this fault?

This fault occurs when the boiler's internal computer system loses track of the fan's speed or the air flow required for safe combustion. It is often caused by a buildup of dust in the fan assembly or a loose electrical connection that disrupts the signal between the components. While it may start as an intermittent glitch, it usually points to a mechanical part that is beginning to fail.

DIY fix possible

Locate the mode selector switch on the front control panel.Turn the switch to the 'OFF/RESET' position and wait for 10 seconds.Turn the switch back to the 'ON' position (heating or hot water) to see if the code clears.

Find a Gas Safe engineer
Search the official register →

Related fault codes

Related guides you might find useful