Question about Sharp AF-S120EX Air Conditioner

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Very loud - appears to howl - sounds like bearings on fan motor- have it tore down - can motor be oiled or repacked bearings?

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Careful: Some AC's are not designed to be oiled again once it leaves the manufacturer (while others do as) as to speaking of motors of ACs.

If your AC is making that kind of noise-racket, your AC is experiencing a loose part that needs to be re-tightened.

If it's specifically making a "rattling sound," like it says in this diagnostic article of a handyman site says, then it is likely that your AC fan is loose:

http://yourhandymanzone.com/Your_Handyman_Zone_How_To_Pages_Home_Improvement_Zone_Cooling_Ventilation_Systems_Central_Air_Conditioning_Making_Rattling_Sound.htm

In either instance, your best bet is to contact an experienced AC technician/contractor, as the making of noise is a sign of a serious problem that must be fixed right away, unless you would like to experience almost certain irreparable damage to your AC in my opinion--when sounds are made that's because two or more parts are coming into conflict with each other, causing friction, and thus damage, to occur.

Get free estimates from local AC/HVAC contractors in your area who would be in the position to fix it for you (or whom you can rely on to get as much infromation as possible during the free-estimate consultation so as to apply the information for your own use). The rule of thumb is to get at least three estimates. Good luck!

Posted on Aug 09, 2009

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