Medium
3 green flashes on Baxi Netaheat

Your boiler has lost its flame briefly and will try to restart itself, but it may be struggling to keep the burner lit.

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.

What the manual says

Manufacturer manual

Temporary flame loss. Boiler will self reset, if fault continues you will see 3 red flashes.

From this model's manual
This code was read directly from the manufacturer service manual for this model.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check that your gas supply is turned on (check other gas appliances)Press the reset button once the boiler stops attempting to restartMonitor the boiler to see if the fault progresses to a solid red light

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Avoid the next call-out bill

A cover plan would handle faults like 3 green flashes: no call-out fees, no surprise bills.

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