Haier HB21FWRSS Service Manual

Also see for HB21FWRSS: Installation and user manual

Contents

Haier HB21FWRSS Service Manual Manual pdf 2 page image

SAFETY PRECAUTIONS----------------------------------------------------------------1-2SPECIFICATIONS--------------------------------------------------------------------------3-4PARTS IDENTIFICATIONS--------------------------------------------------------------5DISASSEMBLY------------------------------------------------------------------------------6-12CONTROL AND DISPLAY SYSTEM--------------------------------------------------13-18Control and Display Panel---------------------------------------------------------13Function Adjustment and Control Principle------------------------------------14-18REFRIGERATION PRINCIPLE----------------------------------------------------------19System Flow Chart-------------------------------------------------------------------19System Flow Scenograph ---------------------------------------------------------19CIRCUIT DIAGRAM ------------------------------------------------------------------------20Brief Principle Diagram-------------------------------------------------------------20Connect Diagram---------------------------------------------------------------------20SENSOR AND MALFUNCTION CODE------------------------------------------------21Introduce of Sensor Parts----------------------------------------------------------22Malfunction Codes Problems------------------------------------------------------22ELECTRICAL CONTROL PRINCIPLE-------------------------------------------------23Overview--------------------------------------------------------------------------------23Main Control Board of HB21T-----------------------------------------------------23Air Escaper Controlling Pinciple--------------------------------------------------25Ice Maker Control Principle--------------------------------------------------------25Refrigerator Test Model-------------------------------------------------------------26Fan motor Control---------------------------------------------------------------------27Defrosting Control--------------------------------------------------------------------28TROUBLE SHOOTING--------------------------------------------------------------------30-43Normal Phenomena-not troubles for refrigerators---------------------------30Troubles in Refrigerators and Their Remedies------------------------------30-32Analysis of Troubles and Troubleshooting------------------------------------33-44CONTENTSWater Way Operation Instruction------------------------------------------------45-46