It appears that the fan in the compressor unit failed (it works now) but the compressor (it was running w/o fan) was running very hot and hissing. I shut it down and let it cool over night. It does not start, but the fan does at this point. I have no idea how ;long the compressor was running w/o fan support. Concerned I may need a new compressor unit. Thanks.

109 is not high and if fan wasnt working would be higher it is working as normal when unit running look under at condenser and observe fan --also move unit more away from wall hot air is drawn in from front and exhausted out back

compressors dont go weak either valves are failing -or unit motor failing --and if have leak will need fixing and depending on where and why leaking not cheap --get 2nd opinion

If thisnis a central air conditioner and there is hissing at the indoor coil then the compressor is running, it is possible that both fans are not running. The indoor motor may not run if the control board is bad, capacitor is bad or the motor itself is bad. The outdoor fan may have a bad capacitor or the motor itself is bad

This unit uses a dual run capacitor. There is no start capacitor involved.

The dual run capacitor is possible weak, also check all the electrical connections for tight fitting connections with can cause motor/compressor overheating.
To test a capacitor properly you need the proper test meter capable of reading uf readings(within 6% of the stated rating on the capacitor) "C" common to "F" fan and "C" to "Herm" terminal, the higher rating for compressor and the lower for the outdoor fan. [(example= 25/3uf 370v) 25uf=compressor, 3uf=fan motor.]

lmu18dce compresser failed to start on start up of unit fan runs

Hello, Thank You for using FixYa. I will be helping you today. That sounds like the condenser fan motor failed or the condenser is dirty. Remove the lower cover in front and clean and on back of unit remove cover and see if the fan is running when the compressor is on. It will only run when the compressor is on if that fan motor fails everything will be hot. If the motor failed leave the back cover off and a small fan blowing in there so the compressor doesnt over heat and fail. You can order one from sears parts.
Thank You and please rate my answer if it was helpful..

Find out if the fan(s) and compressor are running when you push the "on" button. You should be able to hear them run as some are that noisy...if they run very quiet then put your ear near the rear bottom of the unit. You probably can see the small cooling fan blades turning at the bottom rear of the refrigerator probably on the right side where the cardboard cover has some cutout slits in it. If that is ok then listen carefully for the compressor noise. If it is actually pumping freon and cooling while running you will hear a slight hissing noise a little like water in a brook. If you hear a humm but no hiss then maybe the compressor is trying to start but can't. If that is the case you will in a short while hear a fairly loud click near the compressor which is the current overload tripping out. It shuts the power to the compressor off but when it cools it will reset itself and the compressor will humm again. If this is the case repeatedly and you do not hear the hissing of the compressor running you must unplug the unit and have it repaired since allowing the compressor to try to start numerous times can eventually cause damage. To make sure the compressor is trying to start you can also remove the cardboard cover at the bottom back of the refrigerator and place your hand on top of the compressor. You can feel if it is running plus it will get warm...even hot...if you can hold your hand on it while running and you hear the hissing noise mentioned above then you should be getting cooling. First thing to check if the compressor is not running is the start/overload unit that is mounted on the compressor..the old fashioned refrigerators used a real coil type relay to do this lasting over 40 years without need of repair but all refrigerators in these modern times got rid of the real relay and simply insert a very cheap disc type thermistor wired across the run and start terminals on the relay...this design of start unit goes bad very often and can burn off (melt) the compressor terminals and even catch fire. Many years ago I worked for Western Electric Co. in their thermistor area making these for the telephone company. They are fine when not subjected to high current but for the refrigerator they allow them to get really hot in normal use and they burn up. So, if that is your problem then replace the unit and you may be back in business...after you clean the dust off of the condenser coils at the bottom of the refrigerator...I like to use a leaf blower for this..does a great job quickly.

the gurgling sound is normal, its the freon inside the evap. .the compressors also runs at a very high temp. , there is only 1 fan that circulates cold air, there is another fan but it is the cond. fan which blows hot air located at the bottom near the floor

The compressor should be OK this time because you caught it in time. But if the condenser fan stops you need to consider replacing the fan. I have had refrigerators do fine until the fan motor warms up and you are away, it stops. Don't think you should use the refrigerator until the fan is fixed. Sea Breeze

first thing to heck would be the condenser fan motor which is located int the compressor compartment pull the refrig away form the wall remove cardboard cover and inspect the fan motor that you will see. check for obstruction or if the fan motor is seized. if this motor fails it will cause the compressor to run extremely hot then shut off on internal motor protector. if you determine the motor is bad you can place a house fan behind unit blowing on compressor area to keep unit working until you get it repaired.
Thanks Peyton