{"kind":"fault_code","lang":"en","path":"/en/gb/fix/vaillant/F.25/","canonical":"https://goodhand.app/en/gb/fix/vaillant/F.25/","indexable":true,"noindex_reasons":[],"title":"Vaillant gas boiler F.25: what it means and when to call a pro · United Kingdom","description":"Vaillant gas boiler code F.25: The flue gas temperature is too high, or the flue or air supply is faulty or blocked. What it means, how serious it is and when to call a pro. No pros are listed for this yet. United Kingdom.","og_image":"https://goodhand.app/en/og/fix/vaillant/F.25.png?v=272637c2","alternates":[{"lang":"en-GB","path":"/en/gb/fix/vaillant/F.25/"},{"lang":"uk-UA","path":"/uk/ua/fix/vaillant/F.25/"},{"lang":"en-US","path":"/en/us/fix/vaillant/F.25/"},{"lang":"x-default","path":"/en/us/fix/vaillant/F.25/"}],"languages":[{"lang":"en","path":"/en/gb/fix/vaillant/F.25/"}],"breadcrumbs":[{"name":"GoodHand","path":"/en/"},{"name":"United Kingdom","path":"/en/gb/"},{"name":"Fault codes","path":"/en/gb/fix/"},{"name":"Vaillant","path":"/en/gb/fix/vaillant/"},{"name":"Vaillant F.25","path":"/en/gb/fix/vaillant/F.25/"}],"data":{"brand":"Vaillant","brand_slug":"vaillant","code":"F.25","gas_emergency":{"country":"GB","number":"0800 111 999","tel":"0800111999","source":"https://www.nationalgas.com/emergency-contacts"},"coverage":{"appliances":["gas boiler"],"brands":[{"slug":"ariston","name":"Ariston","codes":2},{"slug":"baxi","name":"Baxi","codes":5},{"slug":"bosch","name":"Bosch","codes":2},{"slug":"ferroli","name":"Ferroli","codes":3},{"slug":"ideal","name":"Ideal","codes":3},{"slug":"potterton","name":"Potterton","codes":2},{"slug":"vaillant","name":"Vaillant","codes":15},{"slug":"viessmann","name":"Viessmann","codes":3},{"slug":"worcester-bosch","name":"Worcester Bosch","codes":6}],"complete":false,"statement":"Brands in the catalog for gas boiler: Ariston, Baxi, Bosch, Ferroli, Ideal, Potterton, Vaillant, Viessmann, Worcester Bosch. The same code on another brand is not in the catalog yet: this list does not mean no other brand uses it, and we do not guess what it means."},"entries":[{"appliance":"gas boiler","meaning":"The flue gas temperature is too high, or the flue or air supply is faulty or blocked.","hazard":"gas","fields":{"meaning":"The flue gas temperature is too high, or the flue or air supply is faulty or blocked.","severity":"stop-now","try_first":null,"do_not":["Do not keep resetting the boiler."],"call_pro_if":null,"source":{"url":"https://www.vaillant.com/en/advice/help-center/boiler-fault-codes/","title":"Official Boiler Fault Codes List","publisher":"Vaillant"},"withheld":{"fields":["try_first","call_pro_if"],"reason":"gas_unreviewed","why":"Steps are not shown for this code because no qualified person has reviewed them yet. What is safe: switch it off, follow the Do not list and call a pro."},"safety":{"hazard":"gas","reviewed":false,"try_first_withheld":true}},"job_type":{"slug":"boiler-flue-fault","name":"Boiler flue fault repair"}}],"lookalikes":[],"cities":[],"brand_path":"/en/gb/fix/vaillant/","related":[{"name":"Vaillant F.28","path":"/en/gb/fix/vaillant/F.28/","code":"F.28"},{"name":"Vaillant F.29","path":"/en/gb/fix/vaillant/F.29/","code":"F.29"},{"name":"Vaillant F.32","path":"/en/gb/fix/vaillant/F.32/","code":"F.32"},{"name":"Vaillant F.61","path":"/en/gb/fix/vaillant/F.61/","code":"F.61"},{"name":"Vaillant F.63","path":"/en/gb/fix/vaillant/F.63/","code":"F.63"}],"country":{"code":"GB","name":"United Kingdom","currency":"GBP"}}}