Wall A/C only SPORADICALLY blowing cold air. Turn it off and back on, you can feel it's cold, but only if you're 5 inches from it. After a couple of minutes, fan is only blowing warm air again. Vacuumed front of A/C, still doing the same thing. Filter is clean. It is over 100 degrees outside with very low humidity the last few days.(Los Angeles) ; since it's a wall a/c, of course 1/2 of it is outside in the heat. As I noted, if you put your hand right up against the front, you can feel cool air, but it doesn't blow into the room. Could it be the excessive heat? this A/C works well when it is moderately hot outside.

the air ducts could still have ice in them,remove the bottom kick panel,you should find a tech sheet either on the kick panel or taped in the cabinet area down there and it will tell you how to manually put your fridge into defrost, you don't want to work on it while it's running or you'll make it worse,you'll know it's in defrost when the compressor shuts down and the fan in the freezer stops blowing if you can't find it shut down the fridge or unplug it again,remove the food from the freezer,if you're handy remove the back inside wall of the freezer and with a hair dryer melt out any ice up in the vents and blow the air from the hair dryer up above the fan motor and in the corners, ,you'll see water dripping where the ice is,heat it up until no more water drips down,hit one side for a few minutes and then the other side for like 5 minutes at a time so you don't damage anything from heating it up to much,or if you have another fridge leave it unplugged for a couple of days.if you can't remove the wall blow the air into the air slots in the back wall panel,in the right and left side corners and then in the middle,have a light or flash light,you should be able to see water dripping down,keep blowing the air in until no more water is dripping,might take you like 30 to 45 minutes to do this,then turn it back on and see if you can feel cold air blowing into the fridge section,if not shut it down and heat it up again,if you see water dripping there's still ice in there,all that happens is the evaporator coil in the freezer gets cold,the evap fan blows the cold air up nto the fridge section and the air returns to the freezer through the air ducts,when the door was open warm and cold air meet and forms ice in the air ducts,if the fan is working and depending on your model and next time you write send the model number you could have a damper it could of got damaged but it sounds like all you have is frozen air ducts

I'd have to say it's the blower motor. Does it blow hot air when the heater is on?

when you open the freezer door do you hear the fan blowing?if not you have a bad evap fan motor,if the fan is blowing put your hand on the back inside wall of the freezer,if you feel like snow on the back inside wall you have a defrost problem and have to find what part is bad with a meter,bad defrost thermostat,heater or board or timer,send model number next time,ice builds up on the coil and air can't blow into fridge from freezer,could have a bad damper,also if the freezer is on top you could have a blocked drain in the freezer,the air vents freeze up and the fan can't blow air from freezer into fridge because the air ducts are frooze up,all it does is the freezer gets cold,the evaporator fan blows cold air from freezer into fridge section,so either the fan motor is bad,the fan blade is damaged or something is blocking the air like a bad damper or air ducts are frozen up,send the model number and let me know what you find,do you hear the fan,any ice on back freezer wall or anything else you see and i'll try to help you out.

take out all the food out of the freezer,unplug the fridge and get a hair dryer and start melting out all the ice in the freezer,then blow the hot air into the vent holes on the back wall until you don't see any more water dripping down through the slots in the back wall.turn the machine back on,open the fridge door after around 5 or 10 minutes and if you feel cold air blowing into the fridge you fixed the problem,if you don't feel cold air keep hitting the inside back wall with the hair dryer and keep blowing the hot air into the holes in the back wall.all that it does is the freezer gets cold and there's a fan behind the back wall in the freezer,the fan blows the cold air into the fridge side,if the air ducts are frozen the air can't circulate into the fridge section so you have to melt the ice out so the cold air can blow from the freezer to the fridge.good luck,if you have another fridge remove the food and unplug it and leave the doors open for a day and it will melt out.good luck

all i can think of is the door was left open and the air ducts are frozen,look in the freezer section,do you see any frozen water droplets on the walls.ceiling or on the food packages?mostly happens on bottom mount fridges,the warm air gets blown up the air ducts and along with the cold air the ducts freeze up and no air will blow into the fridge section,you can unplug the machine and blow into the holes in the back wall where the evap fan is,if you start to see water dripping down through the air holes keep melting it out until no more water is dripping,then turn it on and feel inside where the damper is and you should feel cold air,this could take a while depending on how much ice is in the ducts.

Check the circuit breaker in the house. sounds like you may have lost power

if you can hear the fan still blowing but no cold air coming up to fridge section a common problem with bottom mount freezers is the door gets left open and the air ducts freeze up and the air can't blow up to the top.turn the control off in the freezer.remove the top shelf and the door,check to see if there are any screws one on each side of the slide arms,if there are remove them and lift the door up and out,with a hair dryer melt out the ice by blowing the hot air up each side of the back wall,also if the back inside wall of the freezer is covered with ice or like snow then you have a defrost problem but if there's no ice on back wall do what i said and blow the air up the sides of the back wall through the vents until no more water is seen dripping through the vent holes,then turn the freezer back on and check to see if you feel cold air blowing in through the vents in the fridge section,if you feel cold air then you're all set,if not keep blowing the hot air up the sides until it's melted out.let me know what you find,you'll know if the door was left open,ice will be on the ceiling near the light switch and sometimes on the top of the freezer door.
However if fan has quit totally then it will have to be replaced since it is responsible for cooling the upper part of the fridge

if you can hear the fan still blowing but no cold air coming up to fridge section a common problem with bottom mount freezers is the door gets left open and the air ducts freeze up and the air can't blow up to the top.turn the control off in the freezer.remove the top shelf and the door,check to see if there are any screws one on each side of the slide arms,if there are remove them and lift the door up and out,with a hair dryer melt out the ice by blowing the hot air up each side of the back wall,also if the back inside wall of the freezer is covered with ice or like snow then you have a defrost problem but if there's no ice on back wall do what i said and blow the air up the sides of the back wall through the vents until no more water is seen dripping through the vent holes,then turn the freezer back on and check to see if you feel cold air blowing in through the vents in the fridge section,if you feel cold air then you're all set,if not keep blowing the hot air up the sides until it's melted out.let me know what you find,you'll know if the door was left open,ice will be on the ceiling near the light switch and sometimes on the top of the freezer door

sounds like you have a leak in the system and have air that has entered into the system.
best to have it serviced by a shop, the system will need to be inspected to find the leak and then evacuated. part replaced and refilled.
leak detector will be okay

Do NOT use the cans of refrigerant with sealer in it.
and do not let the shop put a sealer in it, in the long run this will cost you the replacement of the whole a/c system.

same problem then suddenly would not shut off, kept running. found out it was the thermo couple as well as the timer.