Haier HB21T NN User Manual

CAUTION
READ THIS MANUAL CAREFULLY TO
DIAGNOSE TROUBLE CORRECTLY
BEFORE OFFERING SERVICE .
Refrigerator
SERVICE MANUAL
Features:
1.Chill drawer for delicatessen
2.Slide-out shelf for easy food access
3.Artificial Intelligent (AI) design
4.CFC-free and frost-free deep freezing enabled by efficient air cooling system
5.Air Curtain technology
MODEL:HB21TNN
Haier Grou
p
6.Vitamin C technology for fresh food storage
7.Ice making

Haier HB21T NN Specifications

General

Brand	Haier
Model	HB21T NN
Category	Refrigerator
Language	English

Summary

SERVICE MANUAL

SAFETY PRECAUTIONS

SPECIFICATIONS

Model and Key Features

Details on the refrigerator model, its key features, and specifications.

Technical Data and Aesthetics

DISASSEMBLY

Door Removal and Replacement

Drawer and Handle Replacement

CONTROL AND DISPLAY SYSTEM

Control Panel Overview

Description of the refrigerator's control panel layout and buttons.

Function Adjustment and Control Principle

Explains how to adjust refrigerator functions like AI mode, fast freeze, and fast chill.

Fault Display and Lock Function

Temperature Setting and Alarms

REFRIGERATION PRINCIPLE

System Flow Charts

System Flow Scenograph

Electrical Control Principle

Overview and Control Board

Air Escaper and Test Models

Fan Motor and Defrosting Control

TROUBLESHOOTING

Normal Phenomena and Common Issues

Differentiating normal operations from common refrigerator troubles and their remedies.

Refrigeration System Faults

Analysis of issues related to poor cooling, no cooling, and refrigerant system problems.

Compressor and Electrical Faults

Diagnosing compressor issues, electrical faults, and leakage.

Operational Anomalies