Question about LG LA125HV Split System Air Conditioner

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We have 2. LA125HV w/ 1 condensing 1. air handler

We have 2. LA125HV w/ 1 condensing 1. air handler has a code ch7 other air handler working fine.

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Anonymous

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I could not find a "fault code" list for the LA125HV but for thier Multi Split Units LG lists code CH7 (C7) as "Indoor Unit is Set in Different Cool/Heat Operation Mode." So maybe your air-handler tihinks it's in Heat mode will the compressor is in Cool mode, or vice-versa....

Posted on Apr 29, 2010

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The condenser unit will not kick on...it is a concord unit,10=12 years old,13 seer,3 ton. The air handler works fine. I thought it was the capacitor. The old one was bad,I verified that with multimeter....


It could be a low refrigerant cut-out (switch), grounded or shorted motor windings, open internal winding overload protector (check at the common winding), a broken conductor, or no power at condensing unit from blown fuses or open/tripped breaker.

Aug 22, 2013 | Intertherm Heating & Cooling

1 Answer

How to wire condenser and air handler to the t-stat


Assuming this is a standard unit the thermostat connections you will use: Y, R, G, W and possibly C.

Run two conductor thermostat wire to the condenser. The condenser will have two wires to connect. Connect the two conductors to the condenser wires and run them in to the air handler.

At the air handler, connect the two condenser wires to: Y (yellow) and C

Run 4 or 5 conductor thermostat wire from the air handler to the thermostat. At the thermostat, connect the yellow wire to Y, the white wire to W, the green wire to g, and the red wire to r.

At the air handler, connect the thermostat wires: White to w1, yellow to Y, green to G, and red to R

*Y will now be connected to the thermostat and the condenser
*If you have 5 conductor wire to the thermostat, connect the last wire (which is probably blue) to C
At the air handler, connect the last wire (blue) to C. This will enable you to have 24 volts at the thermostat in case the thermostat actually requires 24 volts to operate it.

R=hot
G=fan
Y=cool
W=heat

May 19, 2011 | Heating & Cooling

1 Answer

Compressor stopped working. Air handler works okay. Checked wiring in thermostat-that is fine. Air handler is not frozen up. Breaker shows fine on meter.


Hi,
Check for power out of the contactor...is the condenser fan running?? If so then the compressor should have power...could be the compressor capacitor...or a bad compressor.
Here is a tip about troubleshooting your air conditioner...
There are many things that can cause your air conditioner not to cool...

AirConditioner Trouble - Review the Possibilities

heatman101

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2 Answers

Air Conditioner (RUUD model: UBHC-14J06NFD) is leaking water from bottom. It is causing a major puddle in Air Intake area.


The condensate drain line/pan is clogged causing the condensation to overflow the pan.

The easy way to fix that is attatch a powerfull wet/dry shop vac to the end of the drain line and such out whatever is causiing the clog. Also take off the panel to the evaporator coil and clean out the pan with the shop vac.

To double check that the clog has been removed, pour a gallon or two of water into the pan and ensure that it is draining properly.

Oct 11, 2009 | Heating & Cooling

1 Answer

Ok..here's one. I have entire air duct system that is condensating ON THE OUTSIDE, UNDERNEATH. I noticed the problem before and after cleaning the coil in a closet air handler. Air runs fine, cools normal....


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Sep 20, 2009 | Heating & Cooling

1 Answer

Rheem Air Handler will not run. This is a 2006 Rheem model RHLA-HM3617JA Air Handler. I replaced both the condenser and air handler circuit boards. I replaced the motor in the air handler.. The condenser...


Have you hard wired your fan motor to verify that the motor and or the capacitor are good? If you do a continuity test of the motor leads(with electricity off of course) you can see if the motor has open or grounded windings.

Apr 11, 2009 | Ruud Handler Air Conditioner

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