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Re: OT: Old wall unit A/C: Increase fan speed? Posted by Ari [Email] ![]() ![]() In Reply to: OT: Old wall unit A/C: Increase fan speed?, michael p, Sat, 9 Aug 2008 14:36:37 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Roger's points are all good. Motors don't slow down by themselves, but they do bog down if the airflow is blocked.
Cleaning is always good - it saves energy and the AC will work better. Another thing to check is the power. A 220 circuit is actually 2 circuits of 120V each. If one of the circuits is blown, the fan will run slower and the compressor won't work as well as it should. You should be able to get much colder than 56 out of the AC.
First, try resetting the breaker for that circuit at the breaker panel. It might have just kicked off slightly. Get a voltmeter, and measure at the socket. Be careful not to touch any metal bits with your hands. Set the meter to VAC.
If you have a 3 prong socket, look at the socket - it should have one vertical slot, and two angled one. It might look like a face, with the two angled ones like eyes and the slot a nose or mouth. The 'nose' is netural. You should read 120 volts from each of the 'eyes' to the 'nose', and 240 volts from 'eye' to 'eye.' If not, you've got a problem with the wiring or the breaker. Get an electrician in.
If you have four prongs, it should be 120 volts between each adjacent prong.
If you have 240 volts at the plug, you might have a fuse blown in one of the power legs internal to the AC.
But clean the filters.
posted by 76.243.12...
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