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Bosch boiler error FA
Flame after gas shut-off. A flame is still detected after the gas valve closed.
Serious · needs a technician
FA
Meaning: Flame after gas shut-off
What causes FA
A flame is still detected after the gas valve closed.
What to do
Turn off the gas supply and call a technician.
Can I fix it myself?
No. This is a fault a technician should handle; keep using the appliance and it can get worse or become unsafe.
If the code comes back
Book a visit and add the code to the booking. A technician arrives knowing which parts to bring, diagnoses the boiler for a flat $89 and gives you an exact quote before doing any work.
Same boiler