Kaysun KCT-03 SR - User Manual

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Thank you for purchasing the remote controller.

This manual describes the safety precaution requirement of using this product.

Wired Controller

KCT-03 SR

INSTALLATION AND OWNER’S MANUAL

Table of Contents

Questions and Answers

L
Laura MartinAug 2, 2025
What to do if my Kaysun KCT-03 SR Controller displays error E9?
- L
  lori61Aug 2, 2025
  If your Kaysun Controller displays an E9 error, it could be due to several reasons. First, the IDU might not have an address or the IDU address is duplicated, so you should set an address for the IDU, ensuring that duplicated IDU addresses are not allowed in the same system. Alternatively, the wired controller might be damaged, requiring replacement. Lastly, the IDU main PCB could be faulty, in which case you should replace it.
K
Kathryn WatkinsAug 16, 2025
How to fix a Kaysun Controller with no display?
- R
  Renee PerryAug 16, 2025
  If there is no display on your Kaysun wired controller, there are several potential causes. Ensure the IDU is powered on. Check the wired controller connection. If the connection is correct and the display is still off, the wired controller might be damaged and require replacement. Another possibility is a power supply failure of the IDU main PCB, which would necessitate replacing the IDU main PCB.

Summary

Installation Guide

Installation Safety Precautions

General safety guidelines and warnings for controller installation.

Installation Accessories

Lists included and on-site required parts for installation.

Installation Procedure

Detailed step-by-step guide for physically installing the wired controller.

Operation and Usage

Operating Safety Precautions

Crucial safety measures to follow while operating the controller.

Parts of the Wired Controller

Identifies and explains the functions of each button on the controller.

Icons in the Display

Visual guide to understand the meaning of various icons on the controller display.

Basic Operation Guide

Instructions for basic functions: ON/OFF, modes, fan speed, and swing control.

Advanced Function Settings

Details on advanced functions: Silent, ECO, Follow Me, and Timer operations.

System Management Functions

Manages filter reminders, function locking, and controller configuration.

Field Setting Configuration

Restore Factory Default

Steps to reset the controller to its original factory configuration.

Indoor Unit Address Configuration

How to check and assign addresses to indoor units for proper communication.

Commissioning Parameter Settings

Advanced configuration options for system parameters and specific operational settings.

Query Operations

Indoor Unit Status Query

Procedures for checking operational parameters of the indoor unit.

Outdoor Unit Status Query

Procedures for checking operational parameters of the outdoor unit.

Error Display Information

Indoor Unit Error Codes

List and explanations of error codes specific to the indoor unit.

Outdoor Unit Error Codes

List and explanations of error codes specific to the outdoor unit.

Troubleshooting Guide

Controller Display Issues

Solutions for issues like a blank or unresponsive controller display.

Communication and Function Errors

Troubleshooting steps for communication failures and unresponsive unit functions.

Kaysun KCT-03 SR Specifications

General

Brand	Kaysun
Model	KCT-03 SR
Category	Controller
Language	English

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