LG Model Split Air Conditioning Cooling Intermittently

Reply

  #1  
Old 04-21-15, 07:08 AM
Member
Thread Starter
Join Date: Apr 2015
Posts: 3
Upvotes: 0
Received 0 Votes on 0 Posts
LG Model Split Air Conditioning Cooling Intermittently

I have an LG Split Air Con System - small vent unit attached to the wall indoors and larger fan unit outdoors.

It is blowing warm air most of the time, but the compressor comes on intermittently and blows cold air for a short period before reverting back to blowing warm air.

I've had a technician trying to repair it for days now.

The first thing he did was change the 'compressor'? Or he changed some part inside it, but it did not seem to have any effect.

After that, I noted how it was working: it was operating like this:

1) Warm air coming out.
2) Outside Unit Compressor Fan comes on for 10 mins,
3) Compressor starts.
4) Blows cold air for 7 minutes.
5) Outside Unit Compressor Fan stops and compressor stops.
6) Warm air coming out for 8 mins.
7) Outside Unit Compressor Fan comes on (cycle repeats itself from step 2).

The technician then came back and cleaned both inside and outside units, top to bottom with some kind of powerful compressed air cleaner.

Now, it operates in a similar fashion to the cycles described above, except now, it is warm MOST of the time, with the compressor and outside fan OFF most of the time, and only cold for a short while before going back to warm.

The tech is now 'guessing' that it could be a 'sensor' problem and is going to swap sensors over between my other 'working' LG air con unit to test it.

Another point to mention is that in the short time periods when it does blow cold air, it is not as cold as my other 'working' LG unit.

Many thanks for any pointers in the right direction to solve this problem.
Thanks,
Des.
 

Last edited by Des Destiny; 04-21-15 at 08:22 AM.
Sponsored Links
  #2  
Old 04-21-15, 07:50 AM
Bob14525's Avatar
Member
Join Date: Jun 2013
Location: USA
Posts: 1,464
Upvotes: 0
Received 11 Votes on 8 Posts
Just to clarify, in 2), 5), & 7), you mention that the "fan comes on". Which fan are you talking about? The condenser fan on the outside unit, or the indoor fan (air handler/blower)?
 
  #3  
Old 04-21-15, 07:53 AM
Member
Thread Starter
Join Date: Apr 2015
Posts: 3
Upvotes: 0
Received 0 Votes on 0 Posts
My apologies - it's the Condenser Fan on the outside unit.
Many thanks.

It's similar, but not an identical model to this one:

http://s3.supplyhouse.com/images/cat...egory/1668.jpg
 
  #4  
Old 04-21-15, 07:54 AM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 51,966
Received 267 Votes on 250 Posts
Welcome to the forums.

These split units are not easy to repair. They have sensors to monitor everything and they drift out of calibration or go intermittent.

You didn't leave a model number but most of those units have a diagnostic routine you can run thru or trouble codes that appear on the display.
 
  #5  
Old 04-21-15, 07:58 AM
Member
Thread Starter
Join Date: Apr 2015
Posts: 3
Upvotes: 0
Received 0 Votes on 0 Posts
Model No: LG Model No. S10-S4A6EN

I live in South East Asia just now, and there aren't any English manuals unfortunately

No unusual indicator lights are showing - the appear to show normal operation - a green power light and a green 'outdoor unit' light, which goes on and off when the condenser is working (the small amount of time that it does work).
 
  #6  
Old 04-21-15, 08:45 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 51,966
Received 267 Votes on 250 Posts
Well you are correct..... there don't appear to be manuals in English. I only occasionally work on the LG units so without a service manual I can't really offer you any solid information.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
 
Ask a Question
Question Title:
Description:
Your question will be posted in: