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Bosch boiler error C6
Fan speed fault. The combustion fan is not reaching the right speed.
Serious · needs a technician
C6
Meaning: Fan speed fault
What causes C6
The combustion fan is not reaching the right speed.
What to do
The fan needs testing and replacing.
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
Other Bosch boiler codes
Different appliance?
C6 on other machines
- GE dishwasherWater temperature too low