Question about Heating & Cooling
The fan of the AC unit is always ON unless there is a power saving option on the model you are having and which is not specified by you. You might be noticing the higher noise level in the night as a possible higher voltage in the night power supply or the external surrounding noise being silent.
Open the panel and check if the fan bearings are dry, oil them , if there is enough dirt have a good cleaning with air or remove and spray with jet wash. make sure that the fan motor is not loose or the blades are touching any parts. reset after a close check with the fan manually rotated.
Set the temperature to normal and the fan speed to the lowest. Choose energy saver -power option where the fan will cut off totally... only if present in this model.
Posted on Nov 12, 2010
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Posted on Jan 02, 2017
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