Question about LG LS-L1210CL Mini Split Air Conditioner

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LG split unit CH 21 Fault. Indoor unit shuts off. outdoor unit condenser fan on for only a minute and shuts off.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: DeLonghi Planus quick connect split heat pump.

I was told by a delonghi technician that it does this to defrost the unit.
Hope this helps.

Posted on Apr 22, 2009

Speed boy
  • 76 Answers

SOURCE: York Mini-Split Not Cooling? : (

This can only be a gas problem.
the split units goes on on and off if a shortage of gas is involved, the chances that you would here it wont be that big for the fans would make too much noise.
get a repair man for a re gas and all is well.

Good luck.

Wouter.

Posted on Oct 22, 2008

  • 30 Answers

SOURCE: lg split system ch 05

Solution # 1, Check Condensor Fan Motor Capacitor 4uf or MFD
# 2, Check Motor Windings
# 3, Check Relay OR Defination Contactor
# 4, Check Connection Terminals

hope will help u 2 solve this

GOOD LUCK

Posted on Feb 16, 2009

  • 1 Answer

SOURCE: ac split unit indoor an ouydoor unit electrical wiring diagram

machine off

Posted on Apr 25, 2009

  • 10 Answers

SOURCE: Outdoor unit does not start. indoor unit fan does run.

by the sound of it the relay in the outdoor section is bad

Posted on May 31, 2009

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1 Answer

What does the code on the screen mean flashes between ch and 05 ?


CH 5 on these units indicates a communications error between the indoor and outdoor units. Generally, it will require a replacement outdoor board assembly to repair it. Lookup LG parts on the internet or ring them for your nearest Agent or parts. 800 243-0000

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1 Answer

Air conditioner fan wont start


change run capacirotor of outdoor fan motor.

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1 Answer

My LG mini split want cut off. I can cut it off on the unit but it still runs wide open it will not cut off by the remote either. any help appreciated.


This sounds like a faulty thermostat (indoor unit), or a welded (shut) set of contacts in the condensing unit (outdoor unit)

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2 Answers

Error code ch 05


Comms Error, check your wiring, remove external pumps. Split/Multi - check volts from terminal N to 3 = 0 - 65 Vdc, Multi V - 4 Vdc terminals 3 and 4

Feb 03, 2011 | LG Art Cool LA181CNW Split System Air...

1 Answer

LG air conditioner 24awn error code message Ch 6 inside fan runs outside unit not working


CH-06 REFERS Indoor unit coil sensor fault. Disconnect from PCB measure resistance. 10 kOhm at 10C and 4 kOhm at 30C. if not replace sensor. THANKS.

Dec 13, 2010 | LG Art Cool LA121HNP Split System Air...

1 Answer

CH 5


This is a Comms error, you may have had a power spike/voltage drop/power cut. Or a wire has been broken but this is unlikely.

I would suggest turning the power off at the indoor unit by the isolator, and also the power at the outdoor unit. leave off for 10 minutes, turn on isolator on the outdoor unit and then the indoor unit. Then start the unit up.

If the problem persists you may have a fault with the unit and a A/C contractor would be required.

This is a common call for LG equipment, i get it all the time.

all the best

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1 Answer

Airconditioner LG LSk181-N2 shutting off


Sounds like your aircon is stuck on heating mode. Or. The outdoor fan speed is affected by ambient temperature, or low refrigerant. In heating mode the indoor fan will come on for a while to sense temperature and will then wait for the outdoor unit to pump up pressure and build up heat.

Feb 01, 2009 | LG LS-K1830CL Cool Mini Split Air...

3 Answers

Ch 5 error code


ch5 error code, means that there is a
communication error (serial comunication) between the outdoor and the indoor unit.
Only for LG-airconditioners.

Jan 02, 2009 | LG Art Cool LA121HNP Split System Air...

2 Answers

Error ch 5


check all wiring and connections - ch 5 is a communication error between the indoor unit and the outdoor unit......

Dec 09, 2007 | LG LSC183VMA Split System Air Conditioner

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