Dehumidifier no water in pan

First of all not sure if there is where I should post about dehumidifiers. I have a Kenmore Model 106955410 that I have had for years. I do remembering if work at one time. Now it runs it seems like the fan works and I can feel air movement, but the coil never gets really cold like it use to. And no water collects in the pan. Do you think it just needs a good cleaning or does it need to be repair?