Question about LG LS-L1210CL Mini Split Air Conditioner

1 Answer

Lg split indoor fan runs non stop

I have a two year old double head lg only cool unit,
the indoor fans runs non stop in both heads all the time, even if the setting temp is higher than the room temp and in any mode. the fan should keep running only if the system is in dehumidification mode. it stops only if you turn off the AC
by the remote and also the the temp is not reaching the desired level ,no icing on the lines, clean filters and blowers for both heads.
thanks
Hamid from toronto

Posted by on

  • Anonymous Mar 18, 2014

    my lg split ac stops working after 30 minutes. I start the ac and set the desire temp of room to say 21. It works fine for around 30 minutes. Then suddenly the actual room temp indicator starts dropping till 11 and then display "LO" and compressor and inside unit fan stops.But in reality the room temp is not even 20 at that time. then after 30 minutes or so the room temp display starts increasing and compressor starts. it keeps on repeating.

×

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 400 Answers

Hello Hamid,
The unit is designed to run the indoor fanmotors continuously when in cooling mode on both indoor units (evaporators). The reason is that this circulates the air and the temperature thermistor or sensor is able to sense return air temperature and in turn start or stop the outdoor unit and compressor as required according to the setpoint temperature. The reason for either unit not reaching setpoint temperature can be a couple of reasons. A) Incorrect design - the unit may be too small for the application. You can calculate this roughly at 650BTU per square meter of room in a relatively warm ambient climate. Or secondly B) The outdoor unit has leaked and is short of refrigerant. You can check this when the outdoor unit is running by feeling the thicker copper tube on the right hand side of the unit. This should be cool to cold. If no temperature difference is felt, it is short of refrigerant. Hope this helps you. Goodbye

Posted on Mar 20, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Front grill


Check the air filter and if it is dirty, replace..
Turn equipment off and let the ice melt.
After ice melts, place a/c in cooling mode and set the thermostat to 3 degrees below room temp display.

The indoor unit fan should start blowing cold air immediately and then turn off once the room temp drops one degree below the cooling temp setting.
If the indoor unit does cycle off, check the outdoor unit and make sure it turns off at the same time.
If the outdoor unit continues to run and the indoor fan is not running, the indoor unit will ice up.
A defective compressor relay that is stuck in a closed position will cause icing of the indoor unit because it keeps the compressor running when it should turn off with the indoor fan.

Do you have an error code being displayed on the controller?
Is there an led light that is flashing on the indoor unit?

Another possibility causing the indoor unit to ice up is if the freon in the system starts to get low.
Make sure the ice has all melted for this next check.
Pretty easy to check without special tools.
If the air filter is clean and there is no dust/ dirt blocking the fins on the indoor unit, turn a/c back on to cool and check that the indoor unit fan comes on and is blowing air good.
Once everything seems to running good go to the outdoor unit.
There will be two lines with black rubber insulation covering them.
Peel back the insulation three inches on each line and observe the copper lines.
If either line starts to frost up the a/c system is most likely low on refrigerant.


Another cause of indoor unit icing could be that the aluminum fins behind the air filter are clogged with dust or other foreign material.
This would block the air that must be pulled in causing the indoor unit coil to become too cold due to lack of air flow and it will ice up.

Operating the cooling system when the outdoor temperature is below 60 degrees can cause the indoor unit to ice up also.

I'm Robert.
Florida certified a/c contractor. 30 years experience.
Hope this helps.


Mar 18, 2014 | Fujitsu Heating & Cooling

1 Answer

I have a LG room air conditioner . LAN186hv ,the inside unite fan runs all the time and will not shut off when room hits temp setting .


I am not very familiar with this particular model but I would see if it has an economy setting on the controls in which case the fan will run non stop while the unit is turned on. Thank you.

Jul 25, 2011 | LG Heating & Cooling

1 Answer

My LG Lan125HV works fine on air conditioning ( cool) but heat pump does not trigger when I move to heat or combined settings. Tried all temperature and fan settings, tried waiting to see if unit waiting...


I talked to LG customer support (800) 243-0000. The tech told me that this model had a problem with the indoor thermistor. It doesn't fail with an open-circuit condition, so you don't get an error code. The thermister just goes out of range and believes your indoor temp is much hotter than it is. That's why the heating never comes on. I'll bet that, even though it ran in COOLING mode, once your room reached setpoint, it just kept on cooling & cooling ... because the thermistor was still giving a false, high temp reading.

So, I bought a new thermistor, P/N 6323A20042A. My unit worked fine. Until the next week when I turned heating back on and now I have the same problem ... gives cooling but no heat. Something is failing the indoor thermistor OR the distributor sent me an old-style thermistor, I haven't gotten determination on that yet.

Regardless, call LG and see if they can't direct you to a distributor for an indoor sensor. LG's warranty coverage for parts is a royal pain, unless you can show a receipt by a certified installer, you're not going to have much luck getting payment for the part. However, the thermistor is only $10. Just hope you get one that doesn't fail on you!

Oct 22, 2010 | LG Heat cool Window Air Conditioner

1 Answer

I've just moved into a home with an existing Armstrong Concept 10 A/C unit that's at least 15 years old. When I left for a 2-week vacation, the unit was working great. I set the thermostat to 77 to save...


Hello 93 The compressor caused the breaker to trip.A weak capasitor or burnt wire is a common cause.It sounds like the compressor is NOT on even though the fan is.It may need a new wire or maybe a HARD START kit to help restore operation.Call for help.HS kits are not expensive.NO damage results from leaving it on, the problem would have happened anyway even if you went on vacation or not.The curcit breaker stopped it.Its worth fixing.

Aug 30, 2010 | Heating & Cooling

2 Answers

My lg wall unit (LWHD1009R) 10,000 btu the compressor keeps turning off after it gets going. even though I have it on a low temp. the comressor turns off after 5-10 minutes even though the room is not cold


either going off on low charge which would cause it to ice up, which means you need refrigerant. or high head pressure might just have to clean the coils or check condensor fan.

May 05, 2010 | LG Art Cool LA121CNP wall/window Air...

2 Answers

Noisy indoor air conditioning units


Ok. So first things first. LG have a reputation with all their products. THEY ARE ALL BAD! If you remember GoldStar, they are now LG. GoldStar had horrible products. Now this is what LG has. The fact that the filters are cleaned and the units are serviced is an abosulte plus and will provide the units with extra longevity. Now are these drains are they used for water drainage. If so the upstairs units shouldn't need them unless there is some sort of rise in the drain pipe.

Now to the noise. It seems like there is something which is causing the fan to make a noise. It could be loose bearing or a piece of the fan which has broken away causing it to hit the inside of the unit. Since it is on both units, it would be a generic problem with this series and unfortunately is what you are stuck with now.

To combat this problem, I would: ring LG and the company who installed them and demand that they be repaired and have a warranty on the repairs. Just a heads up, LG are really bad to contact should you have a complaint, so keep persisting that they be repaired free of charge since that they are still under warranty.

If you are not happy with LG or your installers response, I would remove the units and have another brand put in. I recommend Mitsubishi Heavy Industries and Panasonic. Both units are whisper quiet. In fact they are quieter that the LG.

Oh and that only reason why LG boast about their "whisper quiet-ness" is because that is probably the only good going for them - and thats' not even right!

I hope that I have helped you in some way. Good Luck!
Mat

Jul 14, 2009 | LG Heating & Cooling

1 Answer

I recently bought a 4 ton 14.5 SEER Rudd Spilt system using R-410 and matching Rudd furnace. This system replaced a Lennox 10 SEER 4 ton unit. Now that it has gotten hot in Baton Rouge LA 90-93 degrees....


Sounds like the Unit might be low on charge.But without correct readings not sure.
The new unit with 410 will actually cool better due to higher boiling point temp. of freon type.Poor air circulation could also cause problem.Such as dirty filter, too slow fan speed,dirty coil.Also could have obstruction in freon lines either at pump,in line set,or in coil.
Get someone u trust to check it out and ask for their Rudd Dealership Training Credentials.

Jun 15, 2009 | Heating & Cooling

1 Answer

One head freezes


You are short of refrigerant, the evaporators (heads) run in series and if you run short of refrigerant one of them will have reduced or no cooling depending on the amount of refrigerant left in the system. You should make sure that a leak in the system is found before just recharging the system or you will have to do it again in the near future.

Feb 17, 2009 | LG LSC091PMA Split System Air Conditioner

1 Answer

Honeywell digital thermostat won't turn off ac.


The Honeywell CT87 thermostat is a normal round thermostat, not digital and may have a sub-base installed with it that has a two switches on it. One is for Fan (Auto or On)and the other is for Heat, Cool and Off. Make sure the Fan switch is in the Auto position and the other switch is in either the Cool or Off mode. If you continue to get cooling, you have a short in the thermostat wire or a stuck relay in th indoor or outdoor unit. To test this, while the unit is running; remove the round outer ring on the thermostat by pulling it straight off towards you. You will find 3 slotted head screws that hold the thermostat to the sub-base. These screws are located at the 3 o'clock, 7 o'clock and 9 o'clock positions. Turn these screws counterclockwise with a small head screwdriver. They are held in place so should not fall and get lost. With the front of the thermostat removed from the base, the air conditioner should stop running. If the unit continues to run, you will need to have your A/C system inspected by a technician. If in fact your thermostat is digital, look to see how it is mounted to its sub-base and remove it. If the system stops, you may have a bad thermostat or the Fan switch is in the On position. Hopefully this will help.

Sep 11, 2007 | Honeywell CT87B ROUND HEATING&COOLING...

Not finding what you are looking for?
LG LS-L1210CL Mini Split Air Conditioner Logo

1,496 people viewed this question

Ask a Question

Usually answered in minutes!

Top LG Heating & Cooling Experts

Donni Steen

Level 3 Expert

659 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Tim Whalen

Level 3 Expert

3074 Answers

Are you a LG Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...