Haier AS50PDAHRA User Manual

SE
RVICE MANUAL
Wall Mounted Type
DC Inverter
Model No. AS50PDAHRA
This servic e informatio n is designed for experience d repai r technician s only and is not designe d for use by the genera l public.
It does not contai n warning s or caution s to advise non-technic al individu als of potentia l dangers in attemptin g to servic e a product.
Product s powered by electricit y shoul d be service d or repaire d only by experience d professiona l technicia ns. Any attemp t to service or
Repai r the produc t or product s deal t with in this servic e information by anyone else could result in seriou s injury or death
WARNING
2020(Qing dao Haie r Air Condi tioner Genera l corp. , Ltd)
All right s reser ved. Unauthoriz ed copying and distributio n is a violati on of law
Haier Group
Version V1
Date 2020-10-30

Haier AS50PDAHRA Specifications

General

Brand	Haier
Model	AS50PDAHRA
Category	Inverter
Language	English

Summary

Introduction

Model Name Explanation

Explains the model number components and their significance.

Safety Cautions

Features

Specifications

Piping Diagrams

Printed Circuit Board Connector Wiring Diagram

Functions and Control

Main Functions and Control Specification

Overview of primary operating functions and control logic.

Dehumidifying Mode

Operating parameters and logic for dehumidifying mode.

Heating Operation Mode

Operating parameters and logic for heating mode.

Urgent On/Off Input

Functionality and operation of the urgent on/off button.

Low Load Protection Control

Protection mechanism activated under low load conditions.

High Load Protection Control

Protection mechanism activated under high load conditions.

System Test Program

Procedure for executing a system test.

Thermistor Value Data

Dimensional Drawings

Center of Gravity

Service Diagnosis

Caution for Diagnosis

Important considerations and warnings before performing diagnostics.

Problem Symptoms and Measures

Common issues, their causes, and troubleshooting steps.

Error Codes and Indoor Display Descriptions

List of error codes and their corresponding descriptions displayed indoors.

Thermistor and Related Abnormality Troubleshooting

Troubleshooting steps for thermistor and sensor related faults.

Indoor DC Fan Motor Malfunction

Troubleshooting steps for indoor DC fan motor issues.

IPM Protection Faults

Identifying and resolving IPM protection faults.

Indoor-Outdoor Communication Fault

Troubleshooting communication failures between indoor and outdoor units.

High Work-Intense Protection

Troubleshooting high work-intense protection issues.

Circuit Diagrams

Removal Procedure

Wall Mounted Type Removal

Steps for removing the wall-mounted unit.

Front Panel Removal

Procedure to detach the front panel of the indoor unit.

Air Filters and Horizontal Flap Removal

Steps to remove air filters and the horizontal flap.

Unit Casing Removal

Steps for removing the unit casing.

Stepping Motor and Control Box Release

Procedures for releasing stepping motor and control box.

Heat Exchanger Removal

Steps to remove the heat exchanger.

Fan Motor and Fun Removal

Steps to remove the fan motor and fan.

Fan Removal

Steps to remove the fan and bearing housing.