Does anyone know what the problem is when you turn on the aircon unit and a loud sound starts to occur when the fan begins it sounds like their is something interfering with the fan, is there a way to get into the unit to have a look, the air still works its very odd.
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what is the weather like is it humid ?
Humid weather will render any evaporative cooler ineffective !
Have you got the windows and doors open to the building ?
Evaporative cooling relies on putting water in the air and pumping the air out of the building. If it is humid the air already contains water and no extra water is added to the air and no cooling occurs.
Try resetting the system. First turn the breaker off for the condenser and wait about 20 seconds. After you turn it back on the system should reset. If you have any other Air Conditioning Repair Questions don't be afraid to let us know
www.appliancefactoryparts.com/content/.../118816.pdf - United States Above is your service and repair manual, with this you will be able to troubleshoot and repair your Aircon. I suspect, your thermostat may have a faulty sensor? factoidz.com/troubleshooting-your-air-conditioning-thermostat/ http://www.inspectapedia.com/heat/Thermostats.htm
If this is a LG Airconditioning unit.
It has reached the set parmeter of the safety switch point.
1 The unit could be running on too low refrigerant charge and cuts out on low temperature on the indoor unit coil (-5°C longer that 30sec switch off)
2 The unit might be drawing to much current, to much refrigerant, cutting out on high pressure.
Check the refrigerant charge and check the indoor pipe temperature thermister (calibrated at 5kΩ @ 25°C)
Hey there, sounds like the bearings seized in your fan motor. You need to replace the fan motor. If the compressor runs without the fan, th pressures build up and if they reach an extreme point, the compressor will bypass internally, creating a loud sound as the high pressure is released to the low pressure side. I would turn the thermostat on and stand by the outdoor unit as it start. Leave the disconnect on the wall readily available so you can quickly turn it off. If the compressor sounds ok when it starts up and runs for a couple seconds, turn it off right away and replace the fan motor and you should be good to go. If the compressor sounds bad or real noisy immediately at start up, the fan motor not working killed your compreesor. You would need a motor and compressor, might as well replace the unit at this point if you are paying to have it done. Let me know if you need anything else seth