I have been noticing that my aprilaire starts then turns right off. clunk on then clunk. off...other times it starts then runs for a long time then turns off.
its been about a year now and I've never been happy with how loud it is .. it can be heard thoughout the house. so can the other one i have upstairs....
I have it hooked up with an external sensor that controls the humidity..
I have heard that the Honeywells are much much quiter...
just a idea but maybe you should call a tech to come fix it!
Yes, call a tech and have him/her see if there is an Aprilaire current sensing relay gone goofy. It happens.