Haier HB21T NN - Table of Contents

SAFETY PRECAUTIONS----------------------------------------------------------------1-2
SPECIFICATIONS--------------------------------------------------------------------------3-4
PARTS IDENTIFICATIONS--------------------------------------------------------------5
DISASSEMBLY------------------------------------------------------------------------------6-13
CONTROL AND DISPLAY SYSTEM--------------------------------------------------14-18
Control and display panel----------------------------------------------------------14
Function adjustment and control principle-------------------------------------14-18
Fault Display--------------------------------------------------------------------------15
REFRIGERATION PRINCIPLE----------------------------------------------------------19
System flow chart--------------------------------------------------------------------19
System flow scenograph ----------------------------------------------------------19
CIRCUIT DIAGRAM ------------------------------------------------------------------------20
Brief principle diagram--------------------------------------------------------------20
Connect diagram---------------------------------------------------------------------20
SENSOR POSITION------------------------------------------------------------------------21
ELECTRICAL CONTROL PRINCIPLE-------------------------------------------------22
Overview--------------------------------------------------------------------------------22
Main Control Board of HB21T-----------------------------------------------------22
Air Escaper Controlling Pinciple--------------------------------------------------23
Refrigerator Test Model-------------------------------------------------------------24
Fan motor control---------------------------------------------------------------------24
Defrosting Control--------------------------------------------------------------------25
TROUBLE SHOOTING--------------------------------------------------------------------27-41
Normal phenomena-not troubles for refrigerators----------------------------27
Troubles in Refrigerators and Their Remedies-------------------------------24-29
Analysis of Troubles and Troubleshooting------------------------------------30-41
CONTENTS