Have a rm3360w fridge and it is kicking in runs for a couple mins and kicks off . What could be wrong? Is it fixable? not cold at all.

When you feel cooling unit from outside behind cover and unit is on for a couple of hours min, does it feel warm, hot? describe any other things you notice please.

If the compressor runs it's not a control fault. It all points to a refrigerant leak

NOTE: This
is a multi-solution answer since I don't have all the tech from your question to pinpoint your problem
But the solution is in here generically, if you read and study the solutions very,very carefully.

Sounds like the cold control has stuck . Unplug the two wires from the cold control and plug them together. Turn one wire over and plug it into the other. away from the cold control.
The cold control is the knob in the ref that turns it on and off and has numbers on it. (Thermostat)
If it runs then that cold control (Thernostat) is the problem.
If that doesn't work DO THIS:
The relay on the compressor may need replaced
A relay starts the compressor with a higher voltage and then quickly kicks out
Thats what is happening with yours
Its best for a tech to replace The relay but you can do it
Take your model number to your Local Appliance parts store they will have a diagram
showing you how to install the relay. Its called a hard start relay
also try hooking the two wires together on the cold control to route around the cold control.

If you need more help GO HERE:

http://www.applianceaid.com/procedures.html

Thank you for using fixya
Leo Ponder
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I think it's the freezer fan that stopped working,open the freezer and see if it goes you should hear it running and even see.This fan allows the cold air into the fridge compartment,without it it takes ages for the fridge to get cold.I've got the same problem if you find the motor online let me know on [email protected]

If the compressor is "kicking on and off" while the unit itself continues to run, the compressor is failing to start, either due to the start relay / overload kit or the compressor itself is bad.

this is one part of the refrigerator I recommend you have a qualified refrigerator service test. If tested wrong, you could end up causing damage to compressor, turning an inexpensive repair into a new refrigerator purchase

How long has it been there, without experiencing any problems? This just start recently? Have you cleaned intake air filters at ceiling? Fan keeps running?

if it seems like the evaporator is getting cold then your sealed system should appear to be ok. you need the evap fan to transfer cold air into fresh food section. if not turning u need to replace fan motor. make sure your not getting to much frost build up on the evap.

hi thanks for the question. yes if that's the temp that you say 36 to 38 degrees is normal operating temp thanks the appliance doc

Deforster not kicking in. There is a chip that is supposoed to kick in thte Auto Deforst on the frezzer side. It fails and the system freezes up and can not circulate cold air form the freezer side to the Fridge side. Simple repair, but yo will needed a service tech for this.

Sounds like you need a new thermostat to me. They are kinda expensive, not too hard to replace though.