Low
1 green flash on Baxi Suprima 50

Your boiler has reached its target temperature and is simply resting until it needs to heat up again.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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

Boiler temperature reached. No action required.

DIY fix possible

No action is required as this is normal operation.Ensure your room thermostat is set to the desired temperature.Check that your programmer or timer is currently calling for heat.

Find a Gas Safe engineer
Search the official register →

Related guides you might find useful

Is boiler cover worth it?

Break-even maths on monthly cover.

Read →

When to replace your boiler

7 signs repair isn't worth it anymore.

Read →

New boiler cost 2026

Realistic UK prices for a swap.

Read →