AWM612D. Home › Forums › Manufacturer/WP/Insurer Specific Forums › Amica Trade Support › AWM612D. This topic has 0 replies, 1 voice, and was last updated 12 years, 3 months ago by megawatt. Viewing 1 post (of 1 total) Author Posts December 12, 2013 at 11:46 am #78577 megawattParticipant I have a machine intermittently coming up with E20,does any one know what that is? Pump,carbons,heater and insulation resistance are good. Regards, Mike. 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