Worcester Bosch Error Code

Worcester Bosch Error Code

Fault Code Possible Cause
A1 Little or no water in the system – check pressure gauge and repressurise to 1 bar.
C1 Fan has stopped
EA No flame is detected. The boiler will block during 4 attempts before going to Locking fault
EF The boiler is operating at minimum burner load and there is a greater than 18°C Flow & Return temperature difference
No Code Air lock or reduced water content – check pressure gauge and re-pressurise to 1 bar
260 Sensor disconnected or no water content – check pressure gauge and re-pressurise to 1 bar

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