{"kind":"fault_code","lang":"en","path":"/en/us/fix/viessmann/F4/","canonical":"https://goodhand.app/en/us/fix/viessmann/F4/","indexable":true,"noindex_reasons":[],"title":"Viessmann F4: what it means and when to call a pro · United States","description":"Viessmann gas boiler code F4: The boiler failed to ignite (no flame was detected) and has locked out for safety. What it means, how serious it is and when to call a pro. No pros are listed for this yet. United States.","og_image":"https://goodhand.app/en/og/fix/viessmann/F4.png?v=7657ed5c","alternates":[{"lang":"en-GB","path":"/en/gb/fix/viessmann/F4/"},{"lang":"uk-UA","path":"/uk/ua/fix/viessmann/F4/"},{"lang":"en-US","path":"/en/us/fix/viessmann/F4/"},{"lang":"x-default","path":"/en/us/fix/viessmann/F4/"}],"languages":[{"lang":"en","path":"/en/us/fix/viessmann/F4/"},{"lang":"es","path":"/es/us/fix/viessmann/F4/"},{"lang":"fr","path":"/fr/us/fix/viessmann/F4/"}],"breadcrumbs":[{"name":"GoodHand","path":"/en/"},{"name":"United States","path":"/en/us/"},{"name":"Fault codes","path":"/en/us/fix/"},{"name":"Viessmann","path":"/en/us/fix/viessmann/"},{"name":"Viessmann F4","path":"/en/us/fix/viessmann/F4/"}],"data":{"brand":"Viessmann","brand_slug":"viessmann","code":"F4","gas_emergency":{"country":"US","number":"911","tel":"911","source":"https://primis.phmsa.dot.gov/stakeholder-comms/emergencyresponse"},"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 boiler failed to ignite (no flame was detected) and has locked out for safety.","hazard":"gas","fields":{"meaning":"The boiler failed to ignite (no flame was detected) and has locked out for safety.","severity":"medium","try_first":null,"do_not":null,"call_pro_if":null,"source":{"url":"https://www.viessmann-us.com/content/dam/public-brands/ca/pdfs/doc/b1ha/vitodens_100-b1ha_qsg.pdf/_jcr_content/renditions/original./vitodens_100-b1ha_qsg.pdf","title":"Vitodens 100-W, B1HA/B1KA","publisher":"Viessmann"},"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-ignition-lockout","name":"Boiler ignition lockout repair"}}],"cities":[],"brand_path":"/en/us/fix/viessmann/","related":[{"name":"Viessmann F9","path":"/en/us/fix/viessmann/F9/","code":"F9"},{"name":"Viessmann F2","path":"/en/us/fix/viessmann/F2/","code":"F2"}],"country":{"code":"US","name":"United States","currency":"USD"}}}