Last year I bought and returned 5 dehumidifiers. As I tried each one for a time in the basement, they eventually failed. The failure was the readout value and functionality of the humidistat in all but one unit, which simply rattled too much. Something had to be wrong with the environment, right? Well, this year, using a soap solution, I found four slow natural gas leaks at the black pipe, all of which I then fixed. I bought another Dehumidifier (a GE unit). "Knock-on-wood" this dehumidifier has not failed.
I think the Natural gas was the source of pollution that permeated the humidity sensors polymer substrate in each dehumidifier.
A search yielded this text:
Chemical vapors may interfere with materials used for the humidity sensor. The diffusion of chemicals into the sensor's polymer may cause a shift in both offset and sensitivity. In a clean environment the contaminants will slowly dissipate. High levels of pollutants may cause permanent damage to the humidity sensor's polymer.
Has anyone experienced repeated dehumidifier failures like I have?
Thanks,
Dave M.