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Haier SUPER MATCH AS50S2SF1FA-WH User Manual

Haier SUPER MATCH AS50S2SF1FA-WH
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SERVICE MANUAL
Wall Mounted Type
DC Inverter SUPER MATCH
Model No. AS50S2SF1FA-WH
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or
Repair the product or products dealt with in this service information by anyone else could result in serious injury or death
WARNING
All rights reserved. Unauthorized copying and distribution is a violation of law
Version V1 Date 2020-11-15
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Haier SUPER MATCH AS50S2SF1FA-WH Specifications

General IconGeneral
BrandHaier
ModelSUPER MATCH AS50S2SF1FA-WH
CategoryInverter
LanguageEnglish

Summary

Introduction to the Air Conditioner

Model Name Explanation

Explains the meaning of each character in the model name for the air conditioner.

Safety Cautions for Air Conditioner

Caution in Repair Procedures

Specific warnings and cautions to be followed during repair work.

Post-Repair Product Cautions

Safety precautions to be observed after the repair is completed.

Inspection After Repair

Checks and precautions to be taken after the repair work is finished.

Icon Usage and Explanation

Explanation of icons used to attract attention and their meanings.

Haier Air Conditioner Key Features

Haier AS50S2SF1FA-WH Specifications

Air Conditioner Sensor Identification

Refrigerant Piping Diagrams

PCB Connector Wiring Guide

Air Conditioner Functions and Controls

Main Functions and Control Overview

Overview of the main operational functions and control specifications.

Automatic Operation Mode

Describes how the system automatically determines and runs the mode.

Cooling Mode Operation Details

Details the temperature control and features for cooling mode.

Dehumidifying Mode Operation

Explains the temperature control and features for dehumidifying mode.

Heating Mode Operation

Details the temperature control and features for heating mode.

Strength Operation Mode

Explains how the system enters and operates in strength mode.

Mute Operation Mode

Describes the system's mute operation for reduced noise.

Air Refreshing Function (Not Applicable)

Information about the air refreshing function, noting it's not applicable.

Timer Functions Explained

Explains the various 24-hour on/off timing methods available.

Dormant Operation Mode

Details the 8-hour dormant operation cycle for cooling, dehumidifying, and heating.

Urgent On/Off Input and Test Operation

Instructions for using the urgency button for test operation and malfunction display.

Low Load Protection Control Mechanism

Explains the low load protection mechanism to prevent evaporator frosting.

High Load Protection Control

Describes the high load protection that stops the outdoor system.

Abnormal Indoor System Operation

Details system behavior when indoor and outdoor operations conflict.

Malfunction List Resume Procedure

Information on how the malfunction list is stored and presented.

Abnormality Confirmation Methods

Methods for confirming abnormalities in sensors and communication.

Single Indoor System Operation Mode

How to operate a single indoor unit independently of the outdoor unit.

Power Cut Compensation Mode

Details the power cut compensation mode and its storage.

Performing the Test Program

Steps to perform a test program for checking unit functions.

Time Cutting Functionality

Procedure for connecting the test program terminal for faster CPU operation.

Room Card Functionality

Explains the functionality and usage of the room card.

Thermistor Value Tables

Unit Dimensional Drawings

Indoor Unit Center of Gravity

Service Diagnosis and Troubleshooting

Diagnosis Cautions

Cautions regarding error detection and activation of protection devices.

Problem Symptoms and Troubleshooting Measures

Lists common problems, check items, and detailed measures for troubleshooting.

Indoor Display Error Codes

Lists error codes displayed on the indoor unit and their fault descriptions.

Thermistor Failure Diagnosis

EEPROM Error Diagnosis

Indoor Fan Motor Malfunction

Outdoor Fan Motor Fault Diagnosis

Explains outdoor fan motor faults, detection, and causes.

IPM Protection Troubleshooting

Compressor Over-Current Protection

Communication Fault: IPM and Outdoor PCB

Power Supply Voltage Faults

Discharge Temperature Overheat Protection

High Work-Intense Protection (Heating)

Wiring Diagrams Overview

Indoor Unit Wiring Diagram

Wiring diagram for the indoor unit of the air conditioner.

Detailed Circuit Diagrams

Haier Unit Removal Procedure

Front Panel Removal Steps

Air Filter and Flap Removal

Main Casing Removal

Stepping Motor and Control Box Removal

Heat Exchanger Removal Procedure

Fan Motor Removal Steps

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