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Ch02 error at lg multi v evaporator - LG Heating & Cooling

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6ya6ya
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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: Get a CH02 error. Can't get service. No response.

i have the lg lp120hed units as well. i had a unit give me ch02 error a while back i replaced the unit with a spare....now the spare is not working either.

looking at the manual, ch02 error means "indoor coil thermistor error"....calling lg for that part now.

good luck.

Posted on Jun 03, 2010

hvac1960
  • 2133 Answers

SOURCE: How to fix LG CH02

Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5
kOhm at 25C. If not replace sensor

Posted on Jan 16, 2011

hvac1960
  • 2133 Answers

SOURCE: Hi my LG healthplus inverter

Indoor Pipe Sensor or Outdoor Sensor Assy fault, Open or Short. Disconnect from PCB and measure resistance. Air sensor = 10 kOhm at 25C, Pipe sensor = 5
kOhm at 25C. If not replace sensor

Posted on Jan 20, 2011

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Get a CH02 error. Can't get service. No response.


i have the lg lp120hed units as well. i had a unit give me ch02 error a while back i replaced the unit with a spare....now the spare is not working either.

looking at the manual, ch02 error means "indoor coil thermistor error"....calling lg for that part now.

good luck.

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have u checked your low pressure and high pressure when compressor is on. Remember the compressor has a thermal protection switch if the compressor has too much freon the A.C will work for a while turn off, then turn then off and on. Are the air filters for the evaporator clean, is the blower fan blowing the correct way. How long ago did the evaporator coil got cleaned. With a properly cleaned filter and evaporator coil you can now check for pressures. Use your ammeter and check how much the compressor is pulling and compared it to the name plate. How much tons your A.C. If you give me how much tons and low and high readings I might help you diagnose the problem. Make sure the evaporator is clean blower blowing correct way condenser cleaned and condenser fan rotating the correct way

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