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My split type ACU .the indoor lights are blinking and the fan motor did not function and also the outdoor unit

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You didn't mention what error code it shows. But with your statement, please rotate manually your blower motor. If hard replace bearing or motor. If It rotates freely. replace room and coil sensor in indoor unit.

Posted on Jan 02, 2011

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My LG split Ac is running some times but some times not working and showing error code CH09


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After I replaced the pcb on my samsung air conditioner indoor unit it won't start and all 3 led's are blinking


I have had similar problems with Samsung. Apparently, the indoor board fits a lot of different models and each has to be "programmed" in to suit your model. Not sure what was wrong with your machine before but it has been known for these units to have a faulty outdoor fan motor which causes the outdoor board to fail as well. When this happens, the indoor unit will usually work fine for about a minute or 2 and then shut down, with lights flashing. The outdoor wont start at all. If these were the symptoms, I would suggest putting your old indoor PCB back and then getting a new outdoor fan motor and outdoor PCB.

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I got a C9 error on a C12AWR artcool split ac which doesn't work anymore i replaced the mainboard of the outdoor unit which didn't help i replaced the fan motor which didn't help either does...


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= indoor PCB failure. Replace PCB.

Let me informed again if problem persists,.

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Please write how many times blinking and with an interval. Depends upon it, we can give solution.

Normally, blinking 5 times means for drain motor malfunctioning. Check drainline, oif blocked clean it. If drain motor not working, replace it.
If blinking 2 times, Indoor room air thermistor defective replace.

Thanks.

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This alarm state is a CH08 alarm. Which indicates that the indoor unit fan motor has a locked rotor. Solution is to check the indoor fan capacitor and replace or test the windings of the indoor fan motor. Note: the indoor fan motor is a BLDC fan motor and can not be replaced with any other motor. It runs of a voltage regulated frequency.

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When we turn on our split AC, outside unit is not turning ON


The blinking light is because the unit is waiting for the outdoor unit to come on. If in heating mode, the indoor fan will not run before enough pressure and therefore heat has built up. You should check that the indoor air return sensor is not faulty and therefore preventing the outdoor unit from coming on.

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Hello rfrizzell,

My unit is giving me the same alarm. If you have found the solution, please email me at danielabrewster@yahoo.com

Thank you very much.

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