Question about LG Heating & Cooling
Replace with a standard plug. If this trips any circuit breaker you could have a compressor or capacitor problem.
Posted on Jul 02, 2009
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Posted on Jan 02, 2017
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May 24, 2014 | LG LWHD1800R Wall/Window Air Conditioner
Mar 28, 2011 | Amana Heating & Cooling
Here are some basic steps that will help you fixing the problem.
I'm assuming that your unit is dead set without an standby LED
light and your outlet is live.1.Power cord - check the cord it might be opened (no
continuity).This is due to frequent bending,pulling. 2. Power switch - check for dry joints, open contact. 3.Check the internal fuse-
sometimes the fuse fail because of the power
surge, replacing with new one will cure the problem, If this is the case I
would advice you to use surge protector/AVR (Automatic Voltage Regulator).
However if the fuse blew again this is an indication that you have a shorted parts in the power supply, you may visit the
linkhttp://www.fixya.com/support/r8053361-fuse_keeps_blowing for more info. If no reaction and
still the unit didn't power up then you have an open parts on the power supply.
4.If you see that the fuse is intact , don't attempt to touch anything
because there some fatalcomponents
stored electricity enough to hurt you with a simple mistake only. I would
advice you to look for a
professional to troubleshoot
the power supply. If you want to repair it yourself make sure that you have
necessary tools and test
instrument. First check bad solder joints(re-solder all
cold solder), leaky
electrolytic capacitor(sometimes it has bulged at the top but not all, you better
have a capacitor checker), open/shorted regulator transistor/IC(mounted in heat
sink), open fusible resistor (caused by shorted regulator
Transistor/IC), shorted zener
You may also replace the power supply board, try online http://shop.ebay.com/i.html?_nkw=LG+42PC3D&_sacat=0&_odkw=d038+transistor&_osacat=0&_trksid=p3286.c0.m270.l1313
Also check if your unit is under warranty before opening the back
panel, it will void the warranty. Avail it because the manufacturer of your
unit will fix it for free or a little charge only.
Hope I helped you.
Have a nice day!
Thanks for using fixya.
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