The model is RAPC-048JAZ, I unscrewed the top panel and lifted up the fan and held it open with one hand while I sprayed the coils with the hose, but there is 2 layers of fins and the water doesn't seem to get through to the outer layer when I spray from inside. There is no easy way to access the outer fins other than spray it through the louvers. Seems like spraying them from the outside would just cause it to gunk up in the middle between the two layers.
How do I clean the fins all the way through?
It looks like this one