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Code CH04 & CH05 Lg casset type unit - LG Heating & Cooling

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Posted on Jan 02, 2017

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heinzhvac
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SOURCE: Our LG wall aircondition displays

This means your float switch for the drain pan has tripped you probably have a clogged drain.

Posted on Jun 24, 2011

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kevin_getz
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SOURCE: how to fix lg with code CH05

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.

Posted on May 09, 2012

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1 Answer

LG Inverter V model LMN096HVT air conditioner multi unit has error code 9. How can I fix this myself?


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New LG mini split installation getting error CH05


I believe the wiring may be incorrect. Here arethe fault codes.

05

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

5

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
Hope this helps

Bob

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My indoor lg mini split unit the cool light flashes 4 time what's wrong


Indoor unit faults = CH04 or C4
Fascia LED's
- RED = None
- GREEN = 4 Flash
Contents = Drain Pump / Float Switch
Case of Error = Float Switch Open Circuit (High Level Water Alarm)
Indoor Status = Off

clean your condensate drain line you can do this with a shop vac,
Read more: http://dgoma.es/multisplit_lg/lg-multi-split-units-error-code/#ixzz34dr3Cu00
Follow us: dgoma on Facebook

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2 Answers

How to fix lg with code CH05


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.

May 08, 2012 | LG Heating & Cooling

1 Answer

What is the cause of ch05


if it is lg the outdoor pc board.

Nov 08, 2011 | Heating & Cooling

1 Answer

Displays CH04 error


Hello
THis is a heatsink Temp sensor open circut error.Try cycling power on and off to unit.If this does not work you will need sevice as this part is part of the control board.

Sep 17, 2011 | LG LSC121PMA Split System Air Conditioner

1 Answer

Our LG wall aircondition displays a CH04 code. Can you tell what this is, please?


This means your float switch for the drain pan has tripped you probably have a clogged drain.

Jun 24, 2011 | Heating & Cooling

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