Whirpool ADP7409IS F1 error Home › Forums › Public Support Forums › Help And Support › Dishwasher Help Forum › Whirpool ADP7409IS F1 error This topic has 0 replies, 1 voice, and was last updated 12 years, 2 months ago by jacwilson14. Viewing 1 post (of 1 total) Author Posts February 24, 2014 at 6:45 pm #79696 jacwilson14Participant I have an F1 error, there is no nct sensor. Checked the wiring and everything appears ok. Was advised that it was either the valve that may have the nct sensor in it or the pcb board. Is there any way to test what the fault is? Author Posts Viewing 1 post (of 1 total) You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In