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FJOLIVER  
#1 Posted : Thursday, June 2, 2011 1:00:18 PM(UTC)
FJOLIVER

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I am working on this air conditioner, the compressor continues to run
with the unit turned off. What could be the problem?
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denman  
#2 Posted : Saturday, June 4, 2011 7:55:27 AM(UTC)
denman

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Here are your parts
Replacement parts for LWHD2500ER models | AppliancePartsPros.com

Here is a service manual
LG LWHD2500ER 25,000 BTU Window Room Air Conditioner Service Manual - ApplianceDigest.com
You have to join the site to download the manual but it is free and this is a very good site for manuals and other info for the appliance repair DIYer.

Sounds like the compressor relay's contacts are welded together.
icehouse  
#3 Posted : Wednesday, June 8, 2011 7:14:48 AM(UTC)
icehouse

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:eek: This unit does not use a relay it is a Permanent Split Capacitor (PSC) compressor.
denman  
#4 Posted : Wednesday, June 8, 2011 1:55:32 PM(UTC)
denman

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The wiring diagram does show a relay on the circuit board which I thought controlled the compressor.
icehouse  
#5 Posted : Wednesday, June 8, 2011 2:42:18 PM(UTC)
icehouse

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Originally Posted by: denman Go to Quoted Post
The wiring diagram does show a relay on the circuit board which I thought controlled the compressor.

:confused: Where I just looked again.
denman  
#6 Posted : Thursday, June 9, 2011 3:36:56 AM(UTC)
denman

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Page 20 in the manual near the compressor on the AC PCB Assembly, it is marked RY-COMP.

If I am out to lunch on this one could you explain what the function of this relay is
Thanks in advance

denman
icehouse  
#7 Posted : Thursday, June 9, 2011 5:31:41 AM(UTC)
icehouse

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Groups: Senior Expert
Joined: 9/1/2008(UTC)
Posts: 440

Originally Posted by: denman Go to Quoted Post
Page 20 in the manual near the compressor on the AC PCB Assembly, it is marked RY-COMP.

If I am out to lunch on this one could you explain what the function of this relay is
Thanks in advance

denman

Yes upon further examination it is a switch (solid state) . This switch is between L2 and the overload. What purpose it serves is another question as it is not between any compressor windings.
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