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Haier HF-346KAME Service Manual
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Haier HF-346KAME Service Manual

Haier HF-346KAME Service Manual

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Features
l Energy efficient to European Class A standards
l Refrigeration capacity
l .Toughened glass food shelves
l
European style streamline appearance design
Serial number: ER03SM0120-05
HF-346KA
FREEZER
Service Manual
Haier Group
HF-346KA
HF-346KAME
Version number: 00.00
Edition: 2003-05-06
0
Models:

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Summary of Contents for Haier HF-346KAME

  • Page 1 HF-346KA FREEZER Service Manual Models: HF-346KA HF-346KAME Features l Energy efficient to European Class A standards l Refrigeration capacity l .Toughened glass food shelves European style streamline appearance design Haier Group Serial number: ER03SM0120-05 Version number: 00.00 Edition: 2003-05-06...

  • Page 2: Table Of Contents

    CONTENT CONTENT 1. C o n t e n t … … … … … … …… … … … … … … … … … … … … . 2. Product code illumination and Series Introduction…… 2 3. Specifications……………………….……..……………………. 3 4.

  • Page 3: Product Code Illumination And Series Introduction

    Product code illumination and Series Introduction Product code illumination and Series Introduction — 346 KA Family line 2 series Gross capacity (according to export country standard) Freeze Haier product...

  • Page 4: Specifications

    Specifications Specifications Models HF-346KA HF-346KAME Net capacity Color White Silver Power Supply 220-240~/50 220-240~/50 (V/Hz) Rated Input Power 160W 160W Power Consumption 0.81 0.81 (kW.·h/24h) Net Weight (kg) Gross Weight (kg) Unit Dimension (D*W*H) 670X604X1750 670X604X1750 (mm) Packing Dimension (D*W*H)

  • Page 5: Safety Precautions

    Safety precautions Safety precautions...
  • Page 6 Safety precautions...
  • Page 7 Safety precautions...

  • Page 8: Parts And Functions

    Parts and Functions Parts and Functions HF-346KA/346KAME:...

  • Page 9: Function Schedule

    Function Schedule Function Schedule 1 Energy efficient to European Class A standards; 2 Variable temperature drawer; 3 Automatic temperature controlling system; 4 European style streamline appearance design;...

  • Page 10: System Flow Chart

    System Flow Chart System Flow Chart 1 Schematic diagram of System Flow Char 2 Brief Description of System Flow Chart HF-346KA/346KAME is a direct cooling double-circling Freezer which has automatic controlling system, When the Freezer is just powered on, the refrigerant flows in the sequence;...

  • Page 11: Circuit Diagram

    Circuit Diagram Circuit Diagram Schematic Circuit Diagram Brief Description of Control Principle Brief Description of Control Principle HF-346KA/346KAME is a direct cooling freezer with a double system and a automatic controlling temperature system, The thermostat directly controls the start and stop of compressor.

  • Page 12: Maintenance Service And Trouble Shooting

    Program Diagram Maintenance Service and Trouble Shooting Maintenance Service and Trouble Shooting 1 When the refrigerator does not get cold at all Check point Indication Cause of trouble Instruction(diagnosis) Is power Does supplied to the Check it for continuity Thermostat compressor run? compressor? In upright position,check for...
  • Page 13 Maintenance Service and Trouble Shooting 2The refrigerator is not sufficiently cold. Check point Indication Cause of trouble -- Does the compressor operate? -- Is the refrigerator installed a sufficient distance from any direct heat source? -- Is the condition of the condensors radiation satisfactory? -- Are there any hot foodstuffs in the refrigerator? -- Are there excessive storage foods in the refrigerator,causing interference with the circulation of cold air.
  • Page 14 Maintenance Service and Trouble Shooting 5 Normal Phenomena—Not Troubles for Refrigerators In a domestic refrigerator, there is not only a complicated electric control system, but also a refrigerating system that is difficult to discern whether it is in a good working condition. Both the systems are related and affect each other.
  • Page 15 Maintenance Service and Trouble Shooting affect the normal application of refrigerator . 6 Common Troubles in Refrigerators and Their Remedies Causes for troubles occurring in refrigerators are closely related to the quality of components and workmanship in assembling by manufacturers as whether refrigerators are properly used and maintained .The parameters generally used to express the working conditions of a refrigerator include the temperature inside the refrigerator ,operation rate ,electric power...
  • Page 16 Maintenance Service and Trouble Shooting a) Listen to the noises produced when the compressor is running Hums from a fully enclosed aggregate unit is the sound caused by overload indicating that the motor cannot be started normally ,meanwhile ,a clattering sound can be heard from inside the start relay ,which is produced because the start contacts cannot be released normally .A whistling sound is caused by the high pressure gas flowing out of the crack of the pressure tube inside the compressor ,and clucks are the sound of striking after the...
  • Page 17 Maintenance Service and Trouble Shooting appears due to the fact that its temperature is obviously lower than the ambient temperature ,this means that most meshes of its screen has been clogged ,resulting in an obstructed flowing of refrigerant ,thus causing a drop in temperature due to throttling .
  • Page 18 Maintenance Service and Trouble Shooting make a note of from where it leaks ---welding points and parts .After having them repaired ,recharge refrigerant . There many joints sealed surfaces refrigerator ,accordingly ,quite a lot potential leak points do exist in the system .In troubleshooting ,pay attention to those parts that are liable to leak ,check main connection points for oil seepage and tubing for cracks .If there is no severer leak point ,charge the system with nitrogen and detect...
  • Page 19 Maintenance Service and Trouble Shooting Remedy After shut down for several minutes ,open the tubing ,evacuate it and then recharge the system with refrigerant . 4) Low efficiency of compressor Analysis of Trouble Low efficiency of a refrigerating compressor refers to the actual reduction of gas discharge capacity ,and hence the corresponding reduction of refrigerating capacity ,under the condition that the refrigerant in the system is unchanged .This phenomenon occurs mostly when the...
  • Page 20 Maintenance Service and Trouble Shooting phenomenon and other several trouble are tends to be confused .Generally speaking ,you can make a judgment based on the frost formed on the evaporator .If the frost does not cover the evaporator , and moreover ,it is loosely formed ,you can make a judgment that the deterioration of refrigerating effect is due to the accumulation of refrigerating oil left in the evaporator tubing in case no other troubles have been found .
  • Page 21 Maintenance Service and Trouble Shooting compressor can be started easily (if there is no damage to the compressor parts) and its operating current becomes low ,its gas suction pressure is high and discharge pressure is lower ,the gas discharge tube feels rather cold ,no sound of gas eruption from the liquid in the evaporator can be heard ,and no will gush out of the process tube if you cut it open after shutdown .
  • Page 22 Maintenance Service and Trouble Shooting the refrigerant unable to go through. Clogging with dirt exhibits the same symptoms as that with ice, namely, higher gas suction pressure, lower temperature of discharged gas, and no gas flowing sound from the evaporator. The difference between the both is as follows: if the clogging is caused by dirt , tapping the suspicious clogged point (generally in the capillary or the connection joint of the filter) may cause the refrigerant to flow through partially, resulting in some corresponding change, whereas in...
  • Page 23 Maintenance Service and Trouble Shooting cases, stop the compressor at once, and if technique is available, open the cylinder cover and check up the valve block, repair it, or replace it with a new one, Maintenance Service and Trouble Shooting C.
  • Page 24 Maintenance Service and Trouble Shooting 2) Stoppage due to electric troubles a) Thermostat is out of control Analysis of Trouble In case the thermostat does not work in its good order or its temperature sensor has not been installed properly, frequent stoppage is also likely to occur.
  • Page 25 Maintenance Service and Trouble Shooting compressor circuit. Analysis of Trouble In case the compressor cannot be started, this will generally exhibit in the power supply circuit, for instance, power failure, poor contact of switch, and blown fuse. Make a comprehensive analysis of these phenomena, fine out its real cause and take correct measures to remove this trouble.
  • Page 26 Maintenance Service and Trouble Shooting Analysis of Trouble When motor windings have been burned or short-circuited between turns, the fuse will be blown repeatedly, and the blowout occurs particularly at the instant when you close the knife switch. Remedy Check the terminals and the outer casing to see whether they are short-circuited, and measure the resistance of each phase with an avometer.
  • Page 27 Maintenance Service and Trouble Shooting E. Compressor won’t stop Sometimes, the compressor will run continuously(for several hours or run without end), If the food placed in the refrigerator is not too much, there may be the following two situations: i) the refrigerator very low, this means that the control system is probably out of order;...
  • Page 28 Maintenance Service and Trouble Shooting Remedy Check the heat-insulation layer for its damaged parts, repair it to improve its heat-insulation property. If the door has deformed or the door seal is not tightly sealed against the case body, repair them, respectively. 5) Too much food is placed in the refrigerator, or is placed too densely, resulting in poor ventilation or poor conditions for temperature sensing, and hence no stoppage of the compressor.
  • Page 29 Maintenance Service and Trouble Shooting If the leveling screws on refrigerator legs have not been adjusted properly ,vibration and noise will still occur even if the refrigerator has been placed on a level ground . 2) Abnormal noise from compressor Three suspended spring inside the compressor case are out of balance ,and strike against the case ,moreover ,the wear of compressor parts may cause noise sometimes .

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Hf-346ka