3 GREEN FLASHES
FAULT CODE
Baxi
Temporary Flame Loss (EcoBlue/MainEco)
Low Severity
DIY Check Possible
On Baxi EcoBlue and MainEco boilers, 3 green flashes indicates a temporary flame loss. The boiler will self-reset. If it continues, the boiler will show 3 red flashes.
Cold Weather Note
3 green flashes in cold weather may indicate a condensate issue. Monitor closely.
Step-by-Step Fix Guide
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Step 1
Wait for the boiler to self-reset
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Step 2
If green flashes continue to appear, check gas supply and condensate pipe
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Step 3
If 3 red flashes appear, call a Gas Safe engineer
Gas Safe Reminder
Work on gas appliances must be carried out by a Gas Safe registered engineer. The steps above cover safe checks a homeowner can perform - any internal component replacement requires a qualified professional. If in doubt, always call an engineer.