Question about LG LWHD1807HR Thru-Wall/Window Air Conditioner

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LWHD1807HR. Started heat and smelled like plastic was melting? Now when powered up, panel lites, cycle info lite briefly and cycle. Unit does not start. Affecting both heat/cool operation. Unit is 2 yrs old so guess I need to deal with LG for warr repair???

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Put it on cooling then see if the copper coil is cold. it might be your fan capacity or pcb board. yes lg for free parts :P

Posted on Nov 11, 2010

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Posted on Jan 02, 2017

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A plastic lid melted on the coil, still smells like "melted wax", seems clean, what can I do?


You will probably have to replace the heating coil in the bottom of the dishwasher to get rid of the smell. The coils aren't that expensive and replacing them is an easy job. Hardest part is getting the dishwasher out from under the counter to do it.

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Hello John - Let's try resetting the dishwasher by either unplugging it or flipping the household circuit breaker to the off position. It is important to wait roughly ten minutes and then turn on the unit. Confirm that the door is properly latched and try selecting a cycle. If resetting the power does not correct the issue, it could potentially mean a number of things: a potential wiring failure, damaged cord, faulty door latch assembly or control board. Because it could be a number of any one of several underlying causes, I would recommend contacting a professional to properly diagnose and repair the unit.

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Our dishwasher started smelling like something is burning, I turned it off straight away, no visible smoke or anything but it hasn't been cleaning very well for a while now. Are these the death throes? Or...


Make sure there isn't any plastic on the heating element. Also check to see if there is any evidence of previously melted plastic. If it smells like plastic burning & you aren't using any heated options, cut the power & call for service.

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Third break light works but other two dont


What this eliminated here from your list of problems is the brake light switch - if that failed, all 3 brake lites would be ON all the time, or OFF all the time. Since your 3rd lite works, the problem is in wiring from the one lite (that doesnt work) to the other. The wire to both nonfunctional lites will come from one lite to the other (you must remove the plastic trunk panels and trace the wires). The terminal lite will have just 2 wires (its not the problem). The problem will be in the lite that's been daisy-chained to the other light (the one with 4 wires (2 in, 2 out to the other lite)).
Check the suspected light socket and wires for old repairs that have corroded/fallen off (dont laugh - I've seen it), and general corrosion (the usual culprit). Whatever you find, replacing the sockets for the lite bulbs costs just a few dollars at the parts stores --- if you cant solder wires, use crimp unions (or small wire nuts) and E-tape over them to keep out the weather. The pros will solder (the wires) and heat-shrink the connections to the new sockets. Heat shrink is a type of tubing that shrinks under heat of a heat gun and when properly done, keeps out the moisture.

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1 Answer

I have a ge spacemaker XL1400. It was manufacture


it sounds to me like the magnetron is shot in it. this is the part that creates the heat. not worth repairing on a 10 year old unit. Sorry.

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Laars lite 2, mod-lg125n, sn. d03pj3400.


sounds like heat exch is plugged.remove top of unit and inspect for nests.could also be plugged with soot because of poor burner flame characteristics.with top off,turn htr on and look straight down into unit. you should be able to clearly see burner flames between fins. if not remove exchanger and clean

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1 Answer

Carrier Weathermaker SXI Model 58SX8100LG Code 12


Code 12 I believe is power up after power off and a call for heat from the the thermostat. If you have a weak door switch that may be vibrating and going on and off it would cause this as would any thing that causes the power to drop low or out then reapply its self. try holding the door switch in while watching the board and after 2 or 3 minutes the furnace should go on to lite and the blower cycle off. If it stays in this mode try turning the thermostat off (heat - OFF -cool) and then push in the door switch nothing should happen except the lite on the board come on and stay on. If it does this than have someone turn the thermostat to heat and see if it starts or put the door on and set the heat and see if *** goes through the normal cycle of heating. If however it goes right back into the blower mode and shows the 12 code your problem is still with you. So next remove the wire on the "W" terminal on the board. Retry power to the door switch and now nothing should be on except the red lite. If it tries to start the 12 code and blower up again Im pretty sure you have a bad ignition/blower control board.

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I have a fahrenheat lfp 6152 heater smells like plastic buening and is very hot on the backsideof unit near the control end. Unit seems to be all on or all both red and orange lites..I need a phone number...


Greetings, I have the same problem. There is a one inch square diode with 5-prong connections held on the control end by a screw on the unit's back. That's where my burning smell and very hot area were located. Call Carrol Apl. 1-800-654-3545. They have the diode for $9 + $9.95 postage. Matt who works there knows the part. Problem must be widespread - China Mfr.= Garbage products and No US Jobs.

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1 Answer

Will not ignite


First check thermostat is calling for heat or if gas valve fault get unit serviced

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