Troubleshooting; Lg Sims - Self Diagnosis Functions - LG LS181HSV5 Installation Manual

Single zone high efficiency wall mounted

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Table Of Contents

Table of Contents

The SIMs WLAN module and the smart phone app together provide monitoring and trouble-

shooting capability for LG Duct Free Systems. SIMs function only with LG Duct Free products.

LG SIMs can also be used with Single Zone one-to-one configurations such as the Single

Zone Wall Mount systems. SIMs app is available for Apple

phone operating systems. Download the latest version from the App Store (iPhone iOS) or

Google Play™ store (Android). (Apple and iPhone are trademarks of Apple Inc., registered in

the U.S. and other countries. Android and Google Play store are trademarks of Google LLC.)

SIMs can display and graph operational data for the air conditioner system including the

indoor unit and the outdoor unit. SIMs also displays error codes and a troubleshooting guide.

A full copy of the LG SIMs Smart Inverter Monitoring System User's Manual is available on

the www.lghvac.com website.

To use SIMs, you must be a trained HVAC service technician familiar with variable refrig-

erant flow (VRF) systems in general, and with LG's Duct Free System products. You must

understand the inverter air conditioning operation cycle, the meaning of the data displayed by

SIMs, and how to use the data to troubleshoot the system.

High voltages capable of causing death are used in this equipment. Out-

door unit power remains connected during this procedure. Take extreme

caution not to touch electrical components or connections. Failure to

observe this warning can result in death or severe injury.

• The Duct Free System air conditioning system must run for at least

15–20 minutes before data collected by SIMs is valid for trouble-

shooting.

• The free SIMs app must be correctly installed on the smart phone

before using SIMs.

• Some outdoor units have an LGMV extension cable accessed by

removing the side handle cover. If the outdoor unit does not have

this extension cable, access the LGMV connector by removing the

top cover of the outdoor unit.

SIMs App Main Info Screen

The main screen is the first screen displayed after wireless connec-

tion is established. Tap the Main Info tab to display current readings

regarding the indoor and outdoor unit(s). The Operational Info area

of the screen will show active functions or modes by illuminating the

light to the right of the function.

Additional Help information can be accessed by tapping the Help

Menu buttons at the bottom of this screen.

iPhone

iOS or Android™ smart

(File is Factory Use Only)

Due to our policy of continuous product innovation, some specifications may change without notification.