Merloni Oven Error Codes

45 error codes for Merloni oven models. Each links to the full diagnostic procedure from the service manual.

CodeDescription
ER01Oven temperature too hot during pyrolysis cycle (detected by oven PTC sensor).ER02Oven temperature too hot during cooking mode (detected by oven PTC sensor).ER03Unable to lock the door (door lock mechanism failure).ER04Unable to unlock the door (door lock mechanism failure).ER05Oven PTC temperature sensor is in open circuit.ER06Oven PTC temperature sensor is short circuited.ER07Power supply board temperature too high (NTC on power board overheating).ER08Potentiometer 1 disconnected or short circuitER09Potentiometer 2 disconnected or short circuitER10Temperature gradient faultER17Heating timeoutER20Oven temperature sensor readings are incorrect or out of expected range.ER21Power supply board NTC readings illogical (NTC on main board not reading…ER22Incorrect reading from NTC sensor on display board.ER30NTC sensor on main board is short circuited.ER31NTC sensor on main board is in open circuit.ER32Display board overheating detected by NTC sensor (too hot on display).ER33NTC sensor on display board is short or open circuit.ER50Zero crossing faultER60EEPROM fault on main board (checksum and communication error).
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ER61Display EEPROM fault (display EEPROM defective)ER70I2C communication faultER71I2C communication faultER72Communication fault between display board and conversion board (Touch models…ER73Key0 fault on Touch controlER74Key1 fault on Touch controlER75Key2 fault on Touch controlER76Key3 fault on Touch controlER77Key4 fault on Touch controlER78Key5 fault on Touch controlER79Key6 fault on Touch controlER80Key7 fault on Touch controlER81Key8 fault on Touch controlER82Key9 fault on Touch controlER83Key10 fault on Touch controlER84Key11 fault on Touch controlER85Key12 fault on Touch controlER86Key13 fault on Touch controlER87Key14 fault on Touch controlER88Key15 fault on Touch controlER89Key16 fault on Touch controlER90Key17 fault on Touch controlER91Key18 fault on Touch controlER92Key19 fault on Touch controlER99Invalid error code received from power supply board or error code not…

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