Haier HF-180T, Service Manual

Page 1: ...iency z Micro foam technology z Low noise operation z Thick insulation for energy efficiency Haier Group Serial number ER03SM0120 17 Version number 00 00 Edition 2003 01 20 Models HF 120T HF 120TA HF...

Page 2: ...Introduction 2 3 Specifications 3 4 Safety precautions 4 5 Parts and Functions 7 6 Function Schedule 8 7 System Flow Chart 9 8 Circuit Diagram 10 9 Program Diagram 11 10 Maintenance Service and Troubl...

Page 3: ...duct code illumination and Series Introduction H F 240 TA 102102429 Haier product Freezer Gross capacity according to export country standard Product code illumination and Series Introduction Serial N...

Page 4: ...0 220 240 50 220 240 50 Rated Input Power W 90 110 120 Power Consumption kW h 24h 0 60 0 63 0 67 Net Weight kg 45 55 63 Gross Weight kg 53 68 79 Unit Dimension D W H mm 600x600x850 600x600x1134 600x60...

Page 5: ...4 Safety precautions Safety precautions...

Page 6: ...5 Safety precautions...

Page 7: ...6 Safety precautions...

Page 8: ...7 Parts and Functions A Foamed Cabinet B Short Drawer C Long Drawer D Lower Plate E Control Panel F Foamed Door Parts and Functions...

Page 9: ...8 Function Schedule z Energy efficiency z Micro foam technology z Low noise operation z Thick insulation for energy efficiency Function Schedule...

Page 10: ...diagram of System Flow Chart 2 Brief Description of System Flow Chart HF 120T 180T 240T is a direct cooling single system freezer When the freezer is just powered on the refrigerant flows in the seque...

Page 11: ...agram 1 Schematic Circuit Diagram Brief Description of Control Principle Circuit Diagram A STECKER B GEFRIERSENSOR C RAUMSENSOR D SCHALTTAFEL E BERBELASTUNGS SCHUTZAPPARAT F KOMPRESSOR G PTC H LAUFEND...

Page 12: ...S If compressor can run naturally and temperature raising of condenser is very low YES NO No cooling If compressor can run after it stop to run five minutes and give power NO When charging refrigerant...

Page 13: ...s or there are more fresh food inside Check and repair the main control panel NO Is cooling capacity insufficient YES YES NO Comprossor doesn t stop Does the refrigerator refrgerate NO Adjust and inst...

Page 14: ...t YES Repair Does the refrigerant leak siowly NO Is the ambient temperature low than 16 YES Adjust and instruct consumer how to use Check the therostat is correct Cooling capacity is insufficient Main...

Page 15: ...panel Does the compressor has 220V power output Check and repair compressor and accessory YES YES NO Check all cords and power cords Is the ambient temperature low than 16 Does the refrigerated room l...

Page 16: ...greater after the compressor has just stopped running the refrigerant will flow for a certain time therefore this sound is a normal phenomenon 2 A click sound can often be heard from the refrigerator...

Page 17: ...oubles should be determined according to their respective features therefore experience in servicing is very important to troubleshooting Service technicians with rich experience can correctly locate...

Page 18: ...g this is the sound produced by the normal circulation of refrigerant within the evaporator In case only the gas flowing sound can be heard and there is no water flowing sound this indicates that the...

Page 19: ...ethod you can reject some suspicious troubles and finally make a correct judgment 7 Analysis of Troubles and Troubleshooting A Poor Refrigerating Effect The so called poor refrigerating effect refers...

Page 20: ...liquid refrigerant that cannot evaporates in the evaporator will return to the compressor and thus a phenomenon of liquid striking will occur The liquid refrigerant evaporates and effervesces as soon...

Page 21: ...e frost layer on the evaporator tubing will become thicker and thicker Heat conduction will be severely affected when the whole tubing is wrapped with a transparent ice layer and finally the temperatu...

Page 22: ...frigerating The phenomenon that the compressor runs normally but no frost or only a little frost appears on the evaporator and the refrigerator temperature does not drop down is called no refrigeratin...

Page 23: ...ently sometimes the refrigerator works well and sometimes not well In order to determine whether it is clogged with ice heat the suspicious points with hot water to make ice melt and after a while if...

Page 24: ...or a Breakage of gas suction and discharge valve blocks Analysis of Trouble The compressor works by means of the opening and closing of gas suction valve and discharge valve to suck and discharge the...

Page 25: ...m will circulate together with the refrigerant in the system The major symptoms caused by this residual air is higher gas discharge pressure higher discharged gas temperature the gas discharge tubing...

Page 26: ...n Analysis of Trouble The compressor current is within its normal range but the thermal protector actuates repeatedly Remedy Replace the thermal protector with a new one 3 Sudden stoppage due to other...

Page 27: ...to step up the voltage thus normal operation can be achieved 3 Check the thermal relay to see whether its contacts are closed Analysis of Trouble The contacts of thermal relay sometimes may be open du...

Page 28: ...ad insufficient quantity of lubricant clogging in the lubricant oil line or intermittent lubricant oil supply Dirt and other impurities in the lubricant oil will increase its viscosity and cause the...

Page 29: ...thus the compressor runs continuously When the evaporation temperature in the system is too high the temperature sensing agent in the temperature sensor is also hotter therefore the thermostat is unab...

Page 30: ...between the power cord plug and the case body with an avometer the reading will be zero 0 in the worst case the fuse will be blown Check the 3 prong outlet to see whether the live wire and the null l...

Page 31: ...refrigerator has not been levelly placed put a level meter on its top table and adjust the leveling screws on its legs In case noise occurs from the compressor strike different locations on the side s...

Page 32: ...Exploded View...

Page 33: ...02102429 1 0 00 0 00 14 0067266058 Thin tube sleeve 102102429 1 0 00 0 00 15 0060802834 Cable clip 102102429 3 0 00 0 00 16 0067403142 Return gas tube shock pad 102102429 2 0 00 0 00 17 0060700241 Com...

Page 34: ...0 00 50 0060600097 Screw 102102429 4 0 00 0 00 x 51 0060908001 Door handle assembly 102102429 1 0 01 0 01 52 00601220169 Freezer foamed door 102102429 1 0 00 0 00 53 0060503651 Packing carton 10210242...

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