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I have LG unit that goes CH 34, just cleaned the filter, I…

Customer Question
I have LG unit...

I have LG unit that goes CH 34

Contractor's Assistant: Did you double-check the thermostat? And what about the unit's filters?

Just cleaned the filter

Contractor's Assistant: Do you plan on doing the work yourself?

I mean its at friday night , so yeah

Contractor's Assistant: Anything else we should know to help you best?

I guess thats it

Submitted: 11 months ago.Category: HVAC
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Answered in 1 day by:
8/7/2017
HVAC Technician: David Bowden, General Contractor replied 11 months ago
David Bowden
David Bowden, General Contractor
Category: HVAC
Satisfied Customers: 1,157
Experience: Owner at Floridaco
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Hello… my name is ***** ***** I am very knowledgeable in this subject to help answer your question, would you like my expert advice today?

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HVAC Technician: David Bowden, General Contractor replied 11 months ago

CH34 error code displays when the Safety Relay causes the unit to power down due to abnormal pressure in the sealed system. This is designed to protect the unit from overheating.

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HVAC Technician: David Bowden, General Contractor replied 11 months ago

There are a couple of recommended solutions.

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Customer reply replied 11 months ago
What are those?
HVAC Technician: David Bowden, General Contractor replied 11 months ago

Per the manufacturer;

1. Install some form of shade over the unit like an awning to shield it from direct sunlight and the weather elements

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HVAC Technician: David Bowden, General Contractor replied 11 months ago

2​. Clean the condenser coils regularly to maintain proper airflow

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Customer reply replied 11 months ago
I see, would cleaning the condenser coil require specialized equipment?
Or can you at least direct me to a proper online guide/link that you know is reliable.
HVAC Technician: David Bowden, General Contractor replied 11 months ago

3​. Instead of shutting the air conditioner completely off when away from the home, raise the temperature to a higher setting. This will allow the air conditioner to maintain better cooling and humidity control, while reducing the strain on the unit when the temperature is turned back down for more cooling.

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HVAC Technician: David Bowden, General Contractor replied 11 months ago

n​o special equipment, however the aluminum fins are delicate and sharp. They are also close together making cleaning inside of them a challenge.

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HVAC Technician: David Bowden, General Contractor replied 11 months ago

t​he unit most likely would need to be removed from its protective house to better access the coil. These units are heavy and awkward.

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Customer reply replied 11 months ago
Since I live in apartment, the manager took care of #1. #3 is just best practices.
Suppose I did #2, what to do after I clean the coils?
Should I push certain buttons or anything to tell the AC unit I cleaned it up?
HVAC Technician: David Bowden, General Contractor replied 11 months ago

y​ou might consider a local A/C company to perform this service for a reasonable fee. They have the tools and knowledge to clean the unit right.

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HVAC Technician: David Bowden, General Contractor replied 11 months ago

I​f that was the cause of the error code, it should self correct if everything is working properly.

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HVAC Technician: David Bowden, General Contractor replied 11 months ago

As a qualified expert, I am only able to offer you some basic and specific advice via this email/text, which may or may not have been sufficient enough to answer your question right now to your satisfaction.

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HVAC Technician: David Bowden, General Contractor replied 11 months ago

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HVAC Technician: David Bowden, General Contractor replied 11 months ago

I hope you found this advice helpful. Should you have additional questions, just let me know.

Thanks again and good luck,

Dave

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