Question about LG Heating & Cooling
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Posted on Jan 02, 2017
0204 built the second week of 2004 sound like you have a loose or burnt wire in the a-c and arcing when the unit comes on. turn the breaker off next time you fix an outlet
Posted on Aug 03, 2009
Usually just listening closely will give you a rough idea where to look for problem. When you have the fan on and switch to cool, (with temperature turned down low obviously) do you hear any type of "moaning" sounds from AC unit, or see lights in RV dim slightly indicating that compressor is trying to engage? Is the breaker tripping when compressor tries to engage? Do you hear a "click" from AC unit when switched to cool? If none of that happens, then I'd start thinking thermostat, or compressor relay. Normally if it's a faulty capacitor, the compressor will try to engage but will make a "moaning sound" and usually trip the breaker due to excess current draw. Someone experience in electrical should be able to test relays etc, but whoever does work on it, should be aware that those capacitors, as well as hydro in general are very dangerous to work with. The ("zap",- Shock) that you can experience from a capacitor or hydro, can be fatal.
Posted on May 30, 2010
You have a faulty start capacitor. The capicitor helps start the motor ... since it is not doing its job, the motor draws LOTS more power from the line popping the breaker. Have your professional RV service center service your AC.
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Posted on Jul 05, 2010
Testimonial: "I am a technical Instructor for a major import, so I know my way around HVAC. so glad to have someone who can pin point the problem I found that the motor start fuse on top of the capacitor is melted. it still has some continuity, but looks like your diagnosis will fix it."
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