Dehumidifier cycling too much

I have a Goldstar dehumidifier which is about 5 or 6 years old that is suddenly beginning to cycle the compressor on and off (fan remains on constantly) about every 10-15 minutes. In the past years the compressor has run non stop all summer. There is no ice build up or excess heat as far as I can tell. Other than the disconcerting sound of the compressor kicking in every 10-115 minutes, it seems to be working ok - it produces as much water as it always has, which I guess is all that counts. I cleaned out the filter and the first layer of fins on the coil but it doesn't seem to help at all. The fins on the interior layer of the coil is also covered in dirt but I don't know how to access it to clean it. Does the cycling use up more electricity or cause more wear and tear; or is this something I should just ignore?

 

This tripping on and off is not normal.. Only shoulld turn off when the fan turns off..

Compressor has it's own internal limit, and it maybe cycyling on that.. High temp.

Is it plugged into a outlet or an extension cord?

 

Thanks for the reply. It is plugged directly into the wall, and the heat doesn't seem to be anything unusual compared to when it was running fine last year. The owners manual says that the cycling is part of an automatic defrost feature, But there is no ice forming on it. I guess I will just have to keep experimenting with it.