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Replacement parts for FRS26WRC models | AppliancePartsPros.com
Your model number seems to be short several digits.

Also I cannot find any tech info on a FRS26WRC but we may not need it.

First check that the condenser/compressor fan and the evaporator/freezer fan are running.
Then check that the compressor is running. You can usually hear it but you should also be able to feel it vibrating and it should be warm.

If the above are running then remove the cover from inside the freezer so you can inspect the evaporator coils.
If they only have frost in one area (usually where the freon enters the coils) or no frost then you have a sealed system problem.
Be sure that the unit has run for a couple hours because if you do this check shortly after a defrost cycle you will mis-diagnose the problem.

If it is a sealed system problem it will be an expensive repair as you need a pro. Often it makes more sense to put those dollars towards a new unit.

If you find the coils are heavily iced/frosted over then you have a defrost problem and that should not be too expensive to repair as you can do it yourself and the parts are not too expensive.

Sorry, double post

Yes, the compressor is running and operating warm, all the fans are functioning as well. I put thermometers in the unit this morning, (about 6 hours ago), the freezer is holding steady at 32° and the fridge is at 41°. This is with the temp control knobs at just a couple ticks past center.

All the coils are clean on the outside, however there is a small amount of water underneath the condenser fan, not much, maybe a couple teaspoons if that. Could the fact that the ice maker is not being supplied any water be a factor or is that a separate issue?