CH 52 is showing on controller. Unit will not switch on.

If the LED light is blinking or error code CH 00 does show up on the display screen on the air conditioner unit then it means that the product does need to be inspected. This error code coming up to show on the product is a temporary error that is caused by electrical issues then such as power fluctuation.

Your model is no longer in manufacture or available. However, I was able to locate the Owners Manual for you. It does not list a CH 01 Error Code, but does list other reasons why your unit want turn ON.

http://www.lg.com/us/support/product/support-product-profile.jsp?customerModelCode=LHD45EL&matchedModelCode=1000001989&searchEngineModelCode=LHD45EL&targetPage=support-product-profile&initialTab=documents#

In the past, I have recommended turning the Master ON/OFF Switch to OFF and unplugging the unit for 12-15 minutes. This will give the unit time to hopefully, reset itself. Then Plug the unit back in and turn the Master ON/OFF Switch to ON. Set the humidity control as you normally would. If it successfully reset itself, it should operate normally.

If you continue to have problems, contact LG Customer Support at 800-243-0000.

Hope this helped you to solve the problem.

Hi,

Here is a tip that explains what can be happening to make the dehumidifier showthat the bucket is full when it is not.

Dehumidifier Problem It shows Bucket Full

heatman101

Hello
To unlock the remote control function do the following.
On the front pane touch control pad

1 Press MENU to display the MENU screen, and then
press VOL[--/+] to select "System Options".

2 Press CH [UP/DOWN] to select "Operation Lock Out", and
then press INPUT.
3 Press CH UP/DOWN] to select "Off", and then press INPUT
4 Press MENU to exit.

• To unlock the buttons on the TV, press MENU on the

remote control, and then select "Off" in "Operation Lock
Out".
OK.

CH-52. Communication error between inverter PCB and main outdoor unit PCB. Check wiring fuses and LED's . If OK either inverter or main PCB defective. HELPFUL?

CH are in two forms steady and blinking CH. Steady CH is associated with door switch for either front cover or side cover. Make sure that the front cover and the right side cover are closed properly.Secondly, Blinking CH
is associated with the toner cartridge or the developer unit not being sensed by the machine. Make sure that the developer unit is well locked in the machine. Pull out the toner cartridge and insert back with some force into the machine, it should clear this sign. If it does not, replace a new cartridge Sharp AR016FT. Let me know if any further clarification/ assistance is required.

Good Luck!
Appreciate generously, if the solution could have been of any help!
CreativeTECH

You need to clean front panel contact switches with contact cleaner,Power menu vol ch- ch+ .

CH steady means cover is open. Close either front or right cover well.
CH blinking means developer unit or toner cartridge not installed. Remove and return well and firmly.

On the front panel board power/ch-/ch+ vol-/vol+ replace contact switches replace all of them.For some odd reasons these contact switches just keep going out they had alot of them bad.

The wiring is fairly straight forward. Along the top row of the ten pin plug =
(Left to Right)

Front Left positive,

Front left Negative,

Control wire from your stereo head unit should be thin blue wire sometimes listed as Remote Wire this switches your amp on and off via your head unit so you don't run your battery flat,

Front Right Negative,

Front Right Positive.

Bottom Row=(Left to Right)

Left Back Positive,

Left Back Negative

Centre Nothing

Right Back Negative

Right Back Positive

These are all inputs from your head unit.

To bridge from 4 channel to 2 you connect

one left speaker to Ch B Left Positive and Ch A Left Negative

one Right speaker to Ch B Right Negative and Ch A Right Positive

Ten Switching the Input Select switch to 2CH

Alternatively if your unit has RCA's on the back of the Head unit you can use them to run your subs.
Hope that helps.