{"kind":"fault_brand","lang":"en","path":"/en/mt/fix/vaillant/","canonical":"https://goodhand.app/en/mt/fix/vaillant/","indexable":false,"noindex_reasons":["below_threshold"],"title":"Vaillant error codes and what they mean · Malta","description":"All 15 Vaillant fault codes in one table: what each one means, how serious it is and when to call a pro.","og_image":"https://goodhand.app/en/og/site.png?v=1","alternates":[],"languages":[{"lang":"en","path":"/en/mt/fix/vaillant/"}],"breadcrumbs":[{"name":"GoodHand","path":"/en/"},{"name":"Malta","path":"/en/mt/"},{"name":"Fault codes","path":"/en/mt/fix/"},{"name":"Vaillant","path":"/en/mt/fix/vaillant/"}],"data":{"brand":"Vaillant","brand_slug":"vaillant","hub_path":"/en/mt/fix/","codes":[{"code":"F.00","name":"Vaillant F.00","path":"/en/mt/fix/vaillant/F.00/","appliances":["gas boiler"],"meaning":"The flow (outgoing) temperature sensor is disconnected or broken."},{"code":"F.01","name":"Vaillant F.01","path":"/en/mt/fix/vaillant/F.01/","appliances":["gas boiler"],"meaning":"The return temperature sensor is disconnected or broken."},{"code":"F.10","name":"Vaillant F.10","path":"/en/mt/fix/vaillant/F.10/","appliances":["gas boiler"],"meaning":"The flow (outgoing) temperature sensor has a short circuit."},{"code":"F.11","name":"Vaillant F.11","path":"/en/mt/fix/vaillant/F.11/","appliances":["gas boiler"],"meaning":"The return temperature sensor has a short circuit."},{"code":"F.20","name":"Vaillant F.20","path":"/en/mt/fix/vaillant/F.20/","appliances":["gas boiler"],"meaning":"The boiler overheated and the safety temperature limiter cut it out."},{"code":"F.22","name":"Vaillant F.22","path":"/en/mt/fix/vaillant/F.22/","appliances":["gas boiler"],"meaning":"The water pressure in the heating system is too low."},{"code":"F.23","name":"Vaillant F.23","path":"/en/mt/fix/vaillant/F.23/","appliances":["gas boiler"],"meaning":"The temperature difference between flow and return is too large, usually because water is not circulating well."},{"code":"F.24","name":"Vaillant F.24","path":"/en/mt/fix/vaillant/F.24/","appliances":["gas boiler"],"meaning":"The boiler temperature is rising too fast, usually because water is not circulating well (air, closed valves or a pump problem)."},{"code":"F.25","name":"Vaillant F.25","path":"/en/mt/fix/vaillant/F.25/","appliances":["gas boiler"],"meaning":"The flue gas temperature is too high, or the flue or air supply is faulty or blocked."},{"code":"F.28","name":"Vaillant F.28","path":"/en/mt/fix/vaillant/F.28/","appliances":["gas boiler"],"meaning":"The boiler failed to ignite (no flame was detected) and has locked out."},{"code":"F.29","name":"Vaillant F.29","path":"/en/mt/fix/vaillant/F.29/","appliances":["gas boiler"],"meaning":"The flame went out during operation, or the flame sensor signal is faulty."},{"code":"F.32","name":"Vaillant F.32","path":"/en/mt/fix/vaillant/F.32/","appliances":["gas boiler"],"meaning":"The fan is faulty or is not reaching the correct speed."},{"code":"F.61","name":"Vaillant F.61","path":"/en/mt/fix/vaillant/F.61/","appliances":["gas boiler"],"meaning":"The boiler cannot actuate its gas valve, which indicates a fault in the gas valve assembly."},{"code":"F.63","name":"Vaillant F.63","path":"/en/mt/fix/vaillant/F.63/","appliances":["gas boiler"],"meaning":"The memory chip (EEPROM) on the boiler's control board is faulty."},{"code":"F.75","name":"Vaillant F.75","path":"/en/mt/fix/vaillant/F.75/","appliances":["gas boiler"],"meaning":"The boiler did not detect the expected pressure change when the pump started."}],"country":{"code":"MT","name":"Malta","currency":"EUR"}}}