John, remove the display from the wall, unplug and clean out all of the metal filings and then plug back in and reinstall the display. If you have any further technical questions, please call 800.261.3602 and ask for tech support.
Looking to upgrade an existing furnace to add AC but unable to run a new line. Here is a Wire Adder Module that reuses your existing 2 wire cable instead of needing a new 4 wire cable.
(link: https://t.co/wTbmT09mBk) …https://t.co/BAnD6JnPPW…
#hvac#homefurnace#retrofithvac