I have a DM10 about 15 months old. The low temperature LED comes on and it stops removing water from the room. It is about 17/18 deg. The LED does not reset itself unless I switch it off and on again. The first DM10 I bought had the same problem and it was replaced by the service man. The second one has the same problem. I wish I had a refund beccause I am out of warranty. what can I do ?