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Split System Error

I have an ASTA09LCG split system air conditioner and when I turn it on with the remote the inside unit doesn't communicate with the outside unit and it doesn't turn on. The light on the inside unit flashes red. Any suggestions on something I could try to fix it? Thanks!

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  • Contributor
  • 25 Answers

So like a faulty component look up Fujitsu web sight for trouble shooting should have answers on there web sight

Posted on Jan 03, 2014

5 Suggested Answers

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Posted on Jan 02, 2017

Therinnaiguy
  • 1420 Answers

SOURCE: lg split system air conditioner

Try sutting off the power to both units. This may reset the unit. Check out the service manual at LG website www.lgusa.com. Go to their support page and put the model number in. Remove and replace the batteries in the remote. If there is a communication error, the inside unit will display 3 flashes. If all else fails, call LG at 1-800-243-0000. Good Luck!

Posted on Aug 30, 2007

  • 306 Answers

SOURCE: Have a near new panasonic

Sounds like some how the fan wiring got on the line side of the magnetic contactor. Unless the contactor is still engaged in that case the compressor would be on also. When I say line side I am talking about where the power comes into the unit from the house and connects to the contactor. If it is within a year old maybe two the installer should stand behind the installation of unit. Contact them and explain the problem. Let me know how it turned out. Ken

Posted on Nov 30, 2008

  • 11 Answers

SOURCE: split system outside unit won't come on for cooling, only heating

Check your filters, dog hair and lack of maintenance will definitely burden the cooling mode of the Mr Slim units.

Posted on Aug 24, 2009

  • 1 Answer

SOURCE: ERROR CODE 5 FLASHES CARRIER SPLIT SYST. AIR COND. 42G250HP-1

5 flashing is ' compressor drive' and check the high pressure, condenser fan motor capacitor for proper running

Posted on May 21, 2010

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1 Answer

Error c5


C05 error indicates no communication between indoor and outdoor units and remote control. Replace the remote batteries with fresh duracells first. If that doesn't fix the problem, verify the indoor and outdoor unit are wired together properly. If still no love, a tech will need to come visit. CALL SANYO TO SCHEDULE A TECH IF NEEDED. Mini-split units are new to the industry, and not all HVAC techs are good at fixing them.

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My split system was working fine. Tuned it on and wont work. remote is working. do I need a tec to come and look at it.


Before calling a repairman, check your self by a volt meter.Confirm power is there in your indoor unit.If there green or red light in the unit displayed or not. If yes, try with your remote. If not check your PCB for fuse blown. Replace the fuse and check again.
Indoor unit display light and no work by your remote means communication error between your remote and unit. Try with other remote. If o.k. replace your remote. If not, problem with PCB receiving sensor. Repair it. Thanks and hope it's helpful?

Jan 08, 2011 | LG LSC121PMA Split System Air Conditioner

1 Answer

I have an F1 error code. The manual states that this means the inside and outside units are not communicating. What should I look for


F-1-No communicationbetween indoor and outdoor. 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

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LG Ductless Mini Split System LAN125hv: Heat pump doesn't run.


First check your circuit breaker or fuse that supplies power to the outside unit. It's probably separate from the inside unit. Then try to turn unit on. If the fan and compressor just make a humming sound then turn it off and check the capacitor if you have a multimeter. You can also look at it and see if the top looks expanded. That's a good sign its bad, but not all bad one's look expanded. Tomorrow I will have access to an LG service manual and can let you know what the code means. Sorry I can't get it sooner. Let me know what you find.

May 02, 2010 | LG LA185HV Split System Air Conditioner

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The remote will turn on and work, but will not communicate with the air conditioner. We have to turn the air conditioner on manually to get it to work


Depending on the age of the unit. REmotes do go bad. Make sure you have it set on remote at the unit. I just installed one and had bad remote fron factory. Rusty

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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

1 Answer

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Try sutting off the power to both units. This may reset the unit. Check out the service manual at LG website www.lgusa.com. Go to their support page and put the model number in. Remove and replace the batteries in the remote. If there is a communication error, the inside unit will display 3 flashes. If all else fails, call LG at 1-800-243-0000. Good Luck!

Jun 13, 2007 | LG LS240CE Split System Air Conditioner

1 Answer

LG split system air conditionsr


3 flases indicates a communication error. Have a technician check wiring and connections.

Jun 05, 2007 | LG LSC121PMA Split System Air Conditioner

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