I have a Fresh Air Unit from Ecoquest. The

Call toll free 1-877-710-0057 between 8: 00 AM and 5:00 PM Eastern time and they will gladly help you.

Hi,

When that message appears the plate does not make good contact with the two contact points. You can use rubbing alcohol and a q-tip to clean the points. After 1-2 years it is also advisable to change the purifier plate. Plates are about $15 and can be purchased at EcoQuest.com

If the plate is dirty (and this can unnoticeable grime-grease) clean the plate with 1 part clear ammonia and 1 part water. An old tooth brush works great.

Dutch