Dehumidifier with knocking fan. Dessicant. (Endcliffe S10)

I have stopped using this because sometimes the fan makes a knocking sound. Other than that it is fully functional and clean. I do not know if the knocking fan can be fixed and I worry the knocking fan could be a fire hazard. If you know better than me perhaps you would like it? If you need a dehumidifier, I am sorry that I am not offering one without defect.