We have a Sears Kenmore. We have a Sears Kenmore Elite side by side fridge with water/icemaker on

Question

We have a Sears Kenmore Elite side by side fridge with water/icemaker on the door. What is the best way to clean all the surfaces that get all moldy? Too many nooks and crannys to get at without somehow taking some of those parts off. Currently we just spray a mild bleach solution all over the parts, clean off what we can, and then let the solution evaporate overnight. OK, but does not get at everything. Any advice? Thx