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LG R28AWN-NC11 error code 5 what causes this?

What causes error code 5? The inside unit is not communicating with the outside unit. Why does this happen? The unit is less than 6 months old.

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Posted on Jan 02, 2017

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SOURCE: Operation light and timer light blink 5 times?

I don't know if this is the proper technical solution or not but my unit was having the same issue. I cleaned it checked fuses made sure the cover was properly in place and nothing worked. As a final thought I went to the home fuse panel and tripped the breaker for the unit, waited about 30 seconds and turned it back on. I did this with the unit set to off. When I came back and turned it on, it is working properly with the operation light solid red.

Posted on Jan 07, 2009

  • 121 Answers

SOURCE: Outside unit will not start...while inside unit blows warm air

probably a.c. was left with out a gas,and compressor will not start and there is no cooling.

Posted on Jul 04, 2009

  • 11 Answers

SOURCE: samsung AQV12m e1 error code

Check the wiring. If it's okay, reset by switching the power from the outside unit off for approx. 1 minute.

Posted on Sep 13, 2009

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SOURCE: LG air conditioner 24awn error code message Ch 6

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.

Posted on Dec 13, 2010

  • 2133 Answers

SOURCE: I have an F1 error code. The manual states that

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

Posted on Jan 01, 2011

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AlvinInside unit fan works; outside unit does not come on. Inside unit showed H5 code once. How do I proceed?

H is most likely for heat pump, meaning error 5 on outdoor unit. My guess would be low pressure since your power to the indoor unit most likely comes from the outdoor unit. Check manual for codes or research model number error codes.

Jun 03, 2016 | Fedders Heating & Cooling

1 Answer

Error code 5

is there a battery in the outside part if so try a new one

Feb 01, 2015 | LG Electronics Electronics 10,000 BTU...

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My lg split system model is LMS304V-4. the fan inside turns on for 3 minutes then turns off but the compressor does not cut in at all. the green light on the left of the panel inside blinks 5 times stops...

I could not find the model number listed in your inquiry, but a lot of LG minispits use the 5 blinking light for indication of poor communication between inside and outside units. Try this before replacing control boards. Power down the outside unit. Remove the cover for the control wiring and loosen and retighten the 4 wire going into the inside unit. Then go in and remove the shroud cover for the inside unit and find the other end of the control wires and loosen and retighten them. Sometimes over time corrosion builds up and causes loss of signal and the lack of proper signal during communication is similar to someone talking to you while you are listening to loud music while wearing a headset. You cannot hear what is being said because to much noise. Remove the cover on the outside unit and see if it has a white reset button. If it does have a reset button after you have performed steps above, try restoring power and pressing the reset button. If it does not have a reset button, it should automatically reset when power is turned back on. If these steps do not help you will probably have to replace the control board on the condensing unit.
Hope this helps.

Dec 10, 2014 | LG Heating & Cooling

1 Answer

No heat but fan keeps running

If the air conditioner compressor runs all the time the main control board might be defective. The main control board provides the voltage to the fan motor and compressor. These boards are often misdiagnosed. Check all other components to be certain this is the cause of the problem.

Nov 25, 2013 | LG LAN186HV / LAU186HV 18,000 BTU 15 SEER...

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Hi. I have an LG Neo Plasma Air Conditioner. Some time ago it started cutting out (switching itself off) and giving a C6 error message. When this happens, the remote does not work and the unit needs to...

Looks like a possible communication error. If you're willing I got one idea for ya. Turn power off to unit. The indoor and outdoor unit are connected and "communicate " through 4 wires, these are labeled 1,2,3,4. They should be color coded inside and out. Meaning if the color black is on 1 outside it should be on 1 inside. But, regardless, at the outside unit swap 1 and 4...2 and 3. Do the EXACT same thing at the inside unit. Then turn the power back on. I have ran into communication errors on mini splits simply because the "data" wire had a little nick or some kind of extra resistance that would throw a communication error but will work just fine as a supply voltage wire. Hope it fixes the problem. Good Luck!!

Apr 06, 2017 | LG Heating & Cooling

1 Answer

I have a LG Inverter Art cool and after about 5 minutes it stops and C5 shows on the panel Kerrie

Fault Code 05.
This fault code indicates a communication error between the indoor and outdoor units; this is usually caused
by wiring errors or condensate pumps connected to the inter-connecting cable.
The communication between the units is a fluctuating DC voltage commonly called a serial signal, it can be
easily lost if the wiring is not done correctly. If there is a communication error fault CH05 will appear within 5
mins of powering up the system.
• Check Outdoor and Indoor Power Supply Voltages ( 230V ±10% ) and correct as necessary.
• Check for any mis-wiring or loose connections and correct as required.
• Check the resistance between communication line and GND. (Normal: Over 2M).
• If one Indoor unit operates normally Outdoor PCB is generally normal.
Turn on the power and start the indoor unit in cooling, set the temperature to 18ºC; the serial communication
signal will only be present for the first 3 mins of operation.
Set your meter to DC Volts, Test between terminals 5 (Red probe) and 2 or Earth (Black probe) of the outdoor
unit, you should see a fluctuating 0-72 Vdc.
If the Voltage is not present disconnect the terminal 5 cable, test the Voltage between this wire (Red probe)
and 2 or Earth (Black probe), you should see a steady voltage in the range of -0.1 to -10.0 Vdc. If No Voltage
is present either the cable or Indoor PCB must be faulty. This can be determined by checking the voltage
output on the Comms terminal of the Indoor unit, with the Comms wire disconnected. If No Voltage is present
the Indoor PCB must be faulty, if present, cable must be at fault. Helpful?

Jan 19, 2011 | LG Art Cool LA121CNP wall/window Air...

1 Answer

Our Evaporative A/C stops and we get Error C5 can any body help

Error c5 is a communication error,between the inside and outside unit.

Check your condensate pump operation,float should move freely and unit should not be full of water.

Another possibility is faulty wiring from your outside unit to the inside.
Try taking all power away from unit for 5 min and then turn on to see if it will reset.
If this doesnt work call for service.

Jan 31, 2010 | Heating & Cooling

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

Lg ductless no ac

I may not be of much help but I may be able to guide you into some diagnosos. If there is a communication problem between the inside and outside unit, both on the inside and outside units a colored LED will bling 5 times then pause for 3 seconds. The 33 and 44 codes are confusing to me because I have never seen this. Try resetting the outside unit with no call for heat or cool from the inside unit. After about 20 seconds, restore power to the outside unit. Go in and turn on the remote and make sure you lower the cool setting more than degrees cooler than the room temp. After 3 minutes the outside unit should turn on. If you get an error code of either 1, 2 or 5 blinks document it for the technician. If you continue to get your 33 and 44, you have a bad control board. If all else fails, press and hold the button located on the lower left side of the art unit and hold for about 5 seconds. If it still no longer works, now you will need the help of someone who knows these units.

Sep 08, 2007 | LG Art Cool LA121CNP wall/window Air...

1 Answer

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 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

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