Rheem rrka a024jk06e DOES NOT COOL

There is a product called "Coil Brite" That is designed to clean coils. It is a spray on liquid that will dissolve the crud built up on the coils.

Check on ebay.

If only fan not working, replace capacitor and try. Still problem, you have to replace fan motor itself.

If you mean outside unit not working, check input at thwe out door. If not check your PCB. Repair it.

Either your filter was really stopped up or you could be low on refrigerant. If your filter was stopped up, be sure it is thawed out all the way with no more ice build up, and go ahead and turn it on. You may have already solved your problem. It it freezes up again, you will have to have your refrigerant checked.
The only other thing it could be would be a stopped up evaporator coil. This happens when the unit is ran for a long time without a filter or when the filter doesn't fit in the blower correctly.

Hello Try inside the hallway or in the large intake vent.If not try the blower unit itself in the attic or basement.

The URKA utilizes Hot Surface Ignition for the pilot. Check out these links for instructions on how to troubleshoot.

http://www.youtube.com/watch?v=lOWbZI691G8

http://homerepair.about.com/od/heatingcoolingrepair/ss/furn_electr_ign_9.htm

R = R with jumper to RC hot side of transformer
B = Reversing valve
Y = Compressor relay
G =Blower
C = common on transformer (X on old t'stat)
W2 = Auxillary heat
E = Emergency heat

The dip tube which carries the incoming cold water to the bottom of the tank is bad/gone. If you can find a rheem dealer you MAY be able to get a new one but it's probably time for a new water heater

check power -ground- fuel- and for animals hiding our for winter(nests) squirrels?