Miele heat pump F066 Home › Forums › Trade Technical & Spare Parts Forums › Miele heat pump F066 This topic has 4 replies, 2 voices, and was last updated 3 years, 2 months ago by oscar123. Viewing 5 posts - 1 through 5 (of 5 total) Author Posts January 22, 2023 at 1:18 pm #101632 oscar123Participant All filters and heat exchanger clean.. even empty it switches off after 3/4 minutes flashing F066. Fault code indicates blocked filters or drum overloaded but definitely not the case with this dryer any ideas on other possible causes? January 22, 2023 at 3:01 pm #485492 electrofixModerator no model so cant see the works but early model used to give similar problems with damaged door seals Dave January 24, 2023 at 2:13 pm #485493 oscar123Participant Sorry Dave it is a TWF505WP. only around 3 years old 🙁 January 24, 2023 at 10:05 pm #485494 electrofixModerator cant find anymore info apart from utube videos cleaning filters another site i found said it may be an air path leakage which could include door seal Dave January 28, 2023 at 2:05 pm #485495 oscar123Participant Thanks for your help Dave.. I usually have Miele tech help from a friend but he is away on holiday. 🙁 Author Posts Viewing 5 posts - 1 through 5 (of 5 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In