SOURCE: i have a lg 1.5 ton split ac , problem is
first check the compressor amps and the condenser fan rotation are correct if ok check power come to the compressor without interuption (from control in the indoor unit)if the remote setting are ok correct voltage to the compressor may high pressure stop it or low pressure compressure overheat.and if this was repeated many time the best to change the compressor.
SOURCE: Split Air Conditioner Compressor Start Problem
you need to change it again.
rememper that I am not rich enghe to by the cheep
SOURCE: lg split system air conditioner
Try sutting off the power to both units. This may reset the unit. Check out the service manual at LG website www.lgusa.com. Go to their support page and put the model number in. Remove and replace the batteries in the remote. If there is a communication error, the inside unit will display 3 flashes. If all else fails, call LG at 1-800-243-0000. Good Luck!
SOURCE: heat controller mini-split air conditioner
Check each screw on your compressor to ground (compressor case). Should be very high resistance Then check the resistance across your teminals on the compressor to be sure it is not shorted. Then check the wiring to your capacitor (The big one). I ran across this just last week. The mechanic didnt have the capicator wired correctly. If it is brand new it will have a wiring schematic somewhere on it.
Dont leave the compressor on very long, but turn it on long enough to get a voltage reading across the terminals. I assume it should be 240 volts. If you have check all of this, they make a jump start gadget to start a stuck compressor. They sell it just about everywhere. Let me know how this comes out..
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