Low
LED 1 on Myson Stratton 80

Your boiler is currently checking that there is enough airflow for it to start up safely; this light should turn off automatically once the system is ready to fire.

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

Technical description

Will remain on until the fan has produced enough air for complete combustion at low rate - low rate air detector.

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 →

Related fault codes

Related guides you might find useful