Worcester Bosch CDI Highflow

Worcester Bosch CDI Highflow Combi Boiler Error Codes

Worcester Bosch CDI Highflow Combi Boiler Error Codes A light on your boiler will flash to indicate that there is a fault. Depending on the type of fault, the light will flash in a different sequence. There will be 4 quick flashes followed by a 5 second gap when the light is off and finally …

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Worcester Bosch CDI Highflow Combi Boiler Error Codes

Worcester Bosch CDI Highflow Combi Boiler Error Codes Fault Description System Behaviour A1 Pump dry run detection or pump is running in air the system pressure needs checking A5 Tank negative thermistor coefficient (NTC) defect A7 Domestic hot water (DHW) negative thermistor coefficient (NTC) defect A8 Energy Management System (EMS) communication error B1 Code plug …

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