Sharp GB-X18JR User Manual (English)

Questions and Answers:

K
kcampbellJul 31, 2025
Why is my Sharp GB-X18JR Air Conditioner not cooling properly?
- J
  Joseph BryantJul 31, 2025
  If your Sharp Air Conditioner isn't cooling well, several factors could be the cause. Start by cleaning or replacing the air filter if it's dirty or blocked. Ensure doors and windows are closed to prevent heat from entering. Check for and remove any obstructions at the air intake or outlet. Reduce heat sources or the number of people in the room. If the set temperature is too high, lower it. Also, it's important to check for refrigerant leakage and inspect the room temperature sensor.
B
Bryan LawsonAug 7, 2025
How to improve the heating effect of my Sharp GB-X18JR Air Conditioner?
- S
  stephenmathewsAug 7, 2025
  If your Sharp Air Conditioner isn't heating effectively, begin by cleaning or replacing the air filter if it's dirty. Make sure that all doors and windows are firmly closed to prevent heat loss. If the set room temperature is too low, increase it. Check for any refrigerant leakage. Avoid operating the unit if the outdoor temperature is below -5?C. Also, check the control line for any abnormalities.
D
diazrussellAug 15, 2025
Why does my Sharp Air Conditioner stop after running for a while?
- C
  Clinton CervantesAug 16, 2025
  If your Sharp Air Conditioner operates for a while and then stops, there might be an obstacle in front of the condenser, so remove any obstructions. Check the control loop for abnormalities. Avoid using cooling operation when the outdoor temperature exceeds 43?C.
S
Susan MyersAug 22, 2025
What to do if my Sharp GB-X18JR cannot be started?
- S
  Suzanne DuffyAug 22, 2025
  If your Sharp Air Conditioner won't start, first ensure that the power supply is properly connected. Check for any electrical leakage that might be causing the leakage switch to trip, and reset the switch if necessary. Also, verify if the operating buttons are locked and, if so, unlock them. Finally, inspect the control loop for any faults.

Sharp GB-X18JR Specifications

General

Brand	Sharp
Model	GB-X18JR
Category	Air Conditioner
Language	English

Summary

Disposal Information

User Disposal Guidelines

Instructions for private users in EU and outside EU on product disposal.

Business Disposal Guidelines

Guidance for business users in EU and outside EU on product take-back and recycling.

Important Safety Instructions

Operation Safety Warnings

Critical safety guidelines for operating the air conditioner unit.

Installation Safety Warnings

Safety alerts related to the installation, removal, and repair of the unit.

Wire Controller Operation

Basic Controller Functions

Overview of the wire controller's display, buttons, ON/OFF, and fan/temperature settings.

Advanced Wire Controller Functions

Sleep and Mode Settings

How to use the Sleep function and select operating modes like Cool, Dry, Fan, Heat, Auto.

Wire Controller Timer and Save Settings

Timer and SAVE Mode Configuration

Instructions for setting the timer and the energy-saving (SAVE) mode.

Wire Controller Failure Display

Error Code Explanations

Definitions of error codes displayed on the controller for troubleshooting purposes.

Remote Controller Operation

Remote Controller Usage

Precautions, battery installation, and basic operation of the wireless remote controller.

Remote Controller Modes

Cool and Heat Modes

How to operate the unit in Cooling and Heating modes using the remote controller.

Additional Remote Controller Modes

Dry and Fan Modes

How to operate the unit in Dehumidification (Dry) and Fan-only modes.

Unit Functions Overview

Temperature Sensors and Outdoor Temp

Information on room temperature sensors and checking outdoor temperature.

Installation Dimensions

Indoor and Outdoor Unit Sizes

Detailed physical dimensions for indoor and outdoor units of different models.

Indoor Unit Mounting

Mounting Instructions and Clearances

Guidelines for mounting indoor units, including specific clearances and warnings.

Outdoor Unit Installation

Installation Location Principles

Key principles and precautions for selecting the optimal installation site for the outdoor unit.

Indoor Unit Installation Procedure

Site Selection and Mounting Steps

How to select the installation site and perform the physical mounting of the indoor unit.

Air Pipe Installation

Air Intake, Supply, and Rectangular Pipes

Instructions for installing air intake, supply, and rectangular air pipes, including insulation.

Drainage and Refrigerant Piping

Drainage Pipeline Installation

Guidelines for installing the condensate drainage pipe, ensuring proper slope and insulation.

Refrigerant Pipe Specifications

Details on refrigerant pipe sizes, lengths, and required refrigerant amounts.

Pipe Connection and System Evacuation

Refrigerant Pipe Connection

Steps for connecting refrigerant pipes, including torque and bending requirements.

Air Removal (Vacuuming)

Procedure for removing air and moisture from the refrigerant circuit.

Refrigerant Pipe Protection and Sealing

Insulation and Wrapping of Pipes

How to apply thermal insulation and tape to refrigerant pipes for protection and condensate prevention.

Wire Controller Installation

Mounting Location and Method

Guidance on selecting the mounting location and physically installing the wire controller.

Electrical Installation

Power Supply and Wiring

Instructions for electrical installation, including power supply checks, wiring, and circuit breakers.

Signal Wiring and Grounding

Controller Signal Connection

How to connect the signal wire for the wire controller to the indoor unit.

Grounding and Leakage Protection

Importance of proper grounding and earth leakage breaker installation for safety.

Troubleshooting Common Failures

Unit Start-up and Operation Issues

Troubleshooting for problems like the unit not starting or stopping unexpectedly.

Cooling and Heating Performance Issues

Solutions for poor cooling or heating effects and other performance problems.

Maintenance and Appendix

Routine and Seasonal Maintenance

Procedures for cleaning air filters and performing seasonal checks on the unit.

Related product manuals

Sharp Air Conditioner

5 pages

Sharp GB-X18JR User Manual

Table of Contents

Questions and Answers:

Sharp GB-X18JR Specifications

Summary

Disposal Information

User Disposal Guidelines

Business Disposal Guidelines

Important Safety Instructions

Operation Safety Warnings

Installation Safety Warnings

Wire Controller Operation

Basic Controller Functions

Advanced Wire Controller Functions

Sleep and Mode Settings

Wire Controller Timer and Save Settings

Timer and SAVE Mode Configuration

Wire Controller Failure Display

Error Code Explanations

Remote Controller Operation

Remote Controller Usage

Remote Controller Modes

Cool and Heat Modes

Additional Remote Controller Modes

Dry and Fan Modes

Unit Functions Overview

Temperature Sensors and Outdoor Temp

Installation Dimensions

Indoor and Outdoor Unit Sizes

Indoor Unit Mounting

Mounting Instructions and Clearances

Outdoor Unit Installation

Installation Location Principles

Indoor Unit Installation Procedure

Site Selection and Mounting Steps

Air Pipe Installation

Air Intake, Supply, and Rectangular Pipes

Drainage and Refrigerant Piping

Drainage Pipeline Installation

Refrigerant Pipe Specifications

Pipe Connection and System Evacuation

Refrigerant Pipe Connection

Air Removal (Vacuuming)

Refrigerant Pipe Protection and Sealing

Insulation and Wrapping of Pipes

Wire Controller Installation

Mounting Location and Method

Electrical Installation

Power Supply and Wiring

Signal Wiring and Grounding

Controller Signal Connection

Grounding and Leakage Protection

Troubleshooting Common Failures

Unit Start-up and Operation Issues

Cooling and Heating Performance Issues

Maintenance and Appendix

Routine and Seasonal Maintenance

Related product manuals