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What can I do when L.G. says that there is a safety feature to PREVENT the unit from working when it is over 115 degrees outside? I've gone around and around for two years with LG. My warranty is vali

I did everything right. I had the repair guy out several times( mostly to satisfy LG), and he reported directly to them. Eventually, after months and months of going back and forth, I got a final decision on my case! It was the following: The model that I have has a built in safety feature that prevents the unit from turning on if the outside temperature exceeds 115f. I was flabberghasted! I live in Yuma, Arizona. It's ALWAYS over 115 outside!(between May and October) My warranty and extra warranty are valid until 2016, so if there's anything you could do, I would appreciate it.

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  • 14 Answers

The reason for the temp safety is to save the unit during excessive temperatures. the Freon inside builds to an excessive high pressure and will harm itself by altering to acid or too high of pressure. I would do what I could to shade the unit and keep it cooler some how. keep ventilated but shaded.

Posted on Nov 20, 2014

Testimonial: "if that is the case they shouldn't sell the unit here, or at least be required to tell me BEFORE I spend a thousand dollars on something that CAN'T work!"

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6ya6ya
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Posted on Jan 02, 2017

hotuna
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SOURCE: Temperature varies 13 degrees around setpoint on aux heat

I don't have the book for this particular unit but, check the sequencers that control the electric heat mode, as the regulator heat pump works good. The part may have a time or temperature delay that is too long for you. Also if it has a remote thermostat, check the heat anticipate setting. You will have to check the installation manuel, but its usually .6 to .8, but I don't think that is the problem.

Posted on Dec 04, 2007

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SOURCE: Fuse plug in LG window a/c unit is shorted out.

Replace with a standard plug. If this trips any circuit breaker you could have a compressor or capacitor problem.

Posted on Jul 02, 2009

  • 76 Answers

SOURCE: I have an older Goodman CKB 18-1

FOR QUESTION 1: They do run independantly. What will happen when your compressor is running but your outdoor fan does not, the pressures in the system will go really high and compressor will overload. That outdoor fan is used to disipate all the heat that is transferred from the inside to the outdoor unit.
FOR QUESTION 2: If you hear humming it can be 2 things. FIrst one is that that capacitor went bad. Dependiing if its a dual run capacitor(which helps both compressor and fan motor) or they both have individual capacitors. The second would be a bad fan motor. OPen your service panel outside to the AC. Find your capacitor for you fan motor. if there are 2 , locate the one that goes to your fan motor. Check it out(if its blown physically youll will notice it like really bubbled, like swollen) then change itout. Or you will have a dual run capacitor that runs both compressor and fan motor. It will have the terminals marked (Fan, Common, Herm) Bsically check your capacitor mfd(micro fared rating, it will say on the capacitor what its rated) Get a multi meter and put in the "MFD' selection. Before you check any capacitor you have to discharge the the voltage charge it has. Use an insulated handle screwdriver and just place the metel part across the capacitor leads. Basicall short them out. Then proceed with checks...hope this helps( remember to always pull the disconnect out from the box outside to cut power)

Posted on Jul 30, 2009

james3751
  • 614 Answers

SOURCE: My Ruud outside condensing unit stops running when

Check condensor coil to see if it is dirty. It is kicking off on high head. Take a water hose and wash the coils this will help. Take the cover off and wash the coils by the compressor those get the dirtiest. TURN OFF POWER FIRST. Russ

Posted on Aug 16, 2009

hvac1960
  • 2133 Answers

SOURCE: I have LG Model lst243h-2

Check your indoor temp sensor defective. Replace it.

Posted on Jan 04, 2011

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