Worcester Bosch

C6 Worcester Bosch Boiler Worcester Bosch C6 means the fan is running too fast or too slow compared to … D1 Worcester Bosch Boiler Worcester Bosch D1 means the heating return NTC sensor reading is out of range — … E5 Worcester Bosch Boiler Worcester Bosch E5 means the primary heating flow temperature climbed above the … F0 Worcester Bosch Water Heater F0 on a Worcester Bosch boiler is a generic sensor fault — usually the flow … F4 Worcester Bosch Water Heater F4 specifically points to the return temperature sensor — the probe that … F8 Worcester Bosch Water Heater F8 is a communication fault between two parts of the boiler's electronics — … D5 Worcester Bosch Boiler D5 means the condensate pump has failed or the condensate pipe is … A1 Worcester Bosch Boiler A1 means central heating pressure is below the boiler's minimum … E9 Worcester Bosch Boiler E9 means the boiler reached an unsafe temperature and locked out for … EA Worcester Bosch Boiler EA means the boiler tried to ignite but failed and locked out.<br>Common causes …