Says its Abnormality of the OutDoor Unit? Unit runs for 1/2 hr fine, then the light starts blinking 4 times continuously but still running fine and after a 1/2 hr of blinking lite, unit shuts off.
Could be overheating and a sensor is triggering the machine to turn off or it could be short of gas. Check all pipework connections for tightness and especially look for oily residue on any of them. This would indicate a leak. Unfortunately, if there is a leak, you would require a licensed air con Tech to repair the leak and regas it.
SOURCE: no cooling after power out, indicator lights pattern not in manual
The Mitsubishi units have to be reset by turning off the indoor units by switching the remote or thermostat to off. Then turn off the breaker to the outside unit(s). After 30 seconds,turn on the breaker and then you can turn on the remote for cool. If no lights come on on the inside units, most likely you have blown a fuse soldered on the main PC board. At this point, call your technician. A goos tech will be able to wire in an in-line fuse holder so if it should happen again, you can easily replace the fuse. If you do see a light or two come on at the indoor unit but the outdoor unit does not start after 3 or 4 minutes, sounds like you will need to call a technician. Most likely you have a blown fuse on the main PC board of the outside unit. It is not an easy one to replace. Good Luck!
SOURCE: Inside unit runs left light blinks compressor will not start
In your out door unit you will have a dual capacitor. One side will be used to help start the outdoor fan and the other side is used to start the compressor. I have a fluke 187 volt ohm meter and can read uF. You probably have a bad capacitor. Its easy to change and by far the cheapest thing to do before calling a tech. It is out side where the electrical enters the outdoor unit. Be sure to kill all power to the outdoor unit and ground the capacitor before you remove and test. This has been the summer of capacitors here in SW Missouri. I have replaced several in the area.
SOURCE: Indoor unit turns on, then compressor turns on and
sonds like a short somewhere in the system
SOURCE: outside unit do not run.Red light blink 6
That is a trouble code signalling that your unit needs service. It is time to call a professional for help!
SOURCE: eo error code
You need a professional here. Once this has been repaired, I would suggest running the wiring to the outdoor unit inside some sort of piping to protect it.
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