Q&A 1 How to repair refrigerator faults through observation? 1
Q&A 2 How to touch the refrigerator to repair the fault? 2
Q&A 3 How to repair refrigerator faults by debugging? 2
Q&A 4 What are the filling methods of refrigerant? three
Q&A 5 How to judge whether the refrigerant filling amount of refrigerator is appropriate? four
Q&A 6 How to seal the process port of the compressor after the refrigeration system of the refrigerator is filled with refrigerant? five
Q&A 7 How to weld the pipe joints of refrigeration system? five
Q&A 8 What are the main welding methods of refrigeration system pipeline? five
Q&A 9 How to weld copper tubes and copper tubes? five
Q&A 10 How to weld copper pipes and steel pipes? six
Q&A 1 1 How to weld the leaking copper-aluminum joint? six
Q&A 12 How to repair the refrigerator liner? seven
Q&A 13 What are the methods for detecting water leakage in refrigerators? seven
Q&A 14 How to distinguish the leakage and blockage of refrigerator refrigeration system? eight
Q&A 15 How to remove the ice jam in the refrigerator? nine
Q&A 16 How to remove the oil plug in the refrigerator? 10
Q&A 17 How to troubleshoot the refrigerator? 10
Q&A 18 Refrigerator refrigeration is normal but noisy. How to repair it? 1 1
Q&A 19 The electromagnetic valve of refrigerator is noisy, how to fix it? 1 1
Q&A 20 How to repair the noise of refrigerator fan? 1 1
Q&A 2 1 There is system noise in the refrigerator. How to fix it? 12
Chapter II Equipment Parameters 13
2. 1 integrated circuit 13
1 74HC595D 13
2 AT24C0 1A 14
3 HCF400 1BE 14
4 HT 162 1 15
5 KID65003AP 16
6 KID65783AP/AF 16
7 KA7533 17
8 KA7805 18
9 LB 1 1683H 18
10 LB 1 1683V20
1 1 lb 1 19882 1
12 LH7540 122
13 LH754 1026
14 LM32430
15 LV874 1V3 1
16 LV8747T33
17 MB89F20234
18 MB89P47537
19 MB89P935C40
20 MB90F4624 1
2 1 MC68HC05sR343
22 MC68HC908JK845
23 MR2920、MR294045
24 NCP 1200P 10046
25 PIC 16C54A46
26 pictures 18F233 1, pictures 18F243 147
27 Pictures 18F433 1, Pictures 18F443 149
28 S3F948852
29 SH67P5454
30 SH69P56/K5656
3 1 SPMC65P2408A59
32 TA75339P60
33 TA7774P、TA7774PG6 1
34 TA8492P、TA8492PG62
35 TB6537F、TB6537FG、TB6537P、TB6537PG62
36 TB6548F64
37 TB6575FNG65
38 TC40 1 1BP66
39 TMP86C420FG、TMP86C420UG66
40 TMP86C820FG、TMP86C820UG68
4 1 TMP86C822UG69
42 TMP86C829BFG、TMP86C829BUG7 1
43 TMP86CH22UG72
44 TMP86CM27FG74
45 TMP86CM29BFG、TMP86CM29BUG、TMP86CM29LUG76
46 TMP86CS28DFG78
47 TMP86P807N80
48 TMP87CK408 1
49 TMP88CH4 1NG82
50 TMP88CH4 1UG84
5 1 TNY266P85
52 TPL920 185
53 TPL920286
54 UDN298 188
55 ULN2003A88
56 XC86689
57 XC8869 1
58 μPD78F07 1 1、μPD78F07 1293
59 μPD78F07 1495
2 2 diode 98
2 3 transistor 100
2 4 thyristors 108
Chapter III Quick Inspection of Maintenance 120
Chapter IV Electrical Code 179
1 aucma MPR 180 fault code of medicine storage box 179
2 aucma BCD258 refrigerator fault code 179
3 AUCOMA BD(C) 300 Electric Freezer Fault Code 179
4 Aucma BD/BC 322FA electric freezer fault code 180
5 aucma BDC 322H electric freezer fault code 180
6 aucma DW 25W203 cryogenic storage box 180 fault code
7 Kelon BCD 19 1 Failure code of fluorine-free refrigerator 180
8 Kelon BCD 199 Wacker refrigerator fault code 18 1
9 Kelon BCD 207A/HC refrigerator fault code 18 1
10 Kelon BCD 207AK refrigerator fault code 18 1
1 1 kelon BCD 238YMP(K) refrigerator fault code 18 1
12 kelon BCD 242/HC digital eco-refrigerator fault code 18 1
13 Kelon BCD 255W refrigerator fault code 18 1
14 Kelon BCD 276AK refrigerator fault code 182
15 Kelon BCD 348W refrigerator fault code 182
16 Meiling BCD 2 18W intelligent air-cooled three-door refrigerator fault code 182
17 Rong Sheng BCD 162A/HC, BCD 172A/HC, BCD 180A/HC, BCD 180a/HC, BCD 200A/HC, BCD 205A/HC. The failure codes of BCD 172AY, BCD 182AY, BCD 202AY and BCD 272AY refrigerators are 182.
18 Rong Sheng BCD 163/HC, BCD 173/HC, BCD 187/HC, BCD 202/HC, BCD 2 17/HC, BCD 242/HC.
19 Rong Sheng BCD 18 1YQ refrigerator fault code 183.
20 Rong Sheng BCD 19 1W, BCD 209W refrigerator fault code 183.
2 1 Rong Sheng BCD 199WAK, BCD 2 19WAK, BCD 199WA/HC, BCD 2 19WA/HC refrigerator fault code 183.
22 Rong Sheng BCD 207A/HC, BCD 2 17A/HC, BCD 237A/HC refrigerator fault code 183.
23 Rong Sheng BCD 207AK, BCD 2 17AK, BCD 237AK, BCD 180AK, BCD 200AK refrigerator fault code 183.
24 Rong Sheng BCD 226AY refrigerator fault code 184
25 Rong Sheng BCD 238YMP(K) refrigerator fault code 184
26 Rong Sheng BCD 255W refrigerator fault code 184
27 Rong Sheng BCD 348W refrigerator fault code 184
28 Rong Sheng BCD 350W/H refrigerator fault code 184
29 Samsung BCD 230NHT, BCD 252NHT, BCD 270NHT, BCD 230NIV, BCD 252NIV, BCD 270NIV refrigerator fault code 185.
30 Panasonic NR B2 1DX 1, NR B23DX 1 refrigerator fault code 185.
3 1 Panasonic NR B24WA 1 refrigerator fault code 185
32 Panasonic NRC28W 1, NRC28W 1, NRC26W 1, NRC26W 1 refrigerator fault code 186.
33 Panasonic NRC28U 1, NR C25WU 1 refrigerator fault code 186.
34 Panasonic NR F46 1AH, NR F46 1AX refrigerator fault code 187.
35 Fault Code of Xinfei D Series Refrigerator 187
36 Electrolux BCD 252 refrigerator fault code 187
37 Electrolux BCD 260EI refrigerator fault code 188
Chapter 5 represents the circuit 189.
1 LG GR S24NCKE, GR S24NCLE, GR S24NCME refrigerator circuit 189
2 LG GR S28NDF, GR S28NDP, GR S32NDF, GR S32NDP refrigerator circuit 189.
3 Aucma BCD 165FA, BCD 175FA, BCD 189FD, BCD 199FD, BCD 186EHS, BCD 196EHS.
4 aucma BCD 2 18 hmes, BCD 2 18MGES refrigerator electrical principle circuit 190.
Electrical principle circuit of Aucma BCD 239EG and BCD 259EG refrigerators 19 1
6 Aucma BD(C) 263 electric freezer 19 1 Electrical principle circuit and wiring diagram
7 Aucma BD/BC 322FA electric freezer 192 electrical principle circuit and wiring diagram
Aucma BD 203 Low Temperature Refrigerator 193 Electrical Principle Circuit
Aucma BDC389A electric freezer 194 electric principle circuit
10 aucma DW 25W203 low-temperature storage box 194 electrical schematic diagram and wiring diagram.
1 1 aucma SC 24 1 and SC 28 1 vertical glass door refrigerator 195 electrical principle circuit.
Toshiba GR 20VE(G) Refrigerator Circuit 196
13 Electrical principle circuits of Haier BC/BD 160S, BC/BD 190S, BC/BD 2 10S, BC/BD 230S, BC/BD 260S horizontal double-door refrigerated conversion cabinets 196.
Haier BCD 130H refrigerator 197 electrical principle circuit.
15 Haier BCD 175TD refrigerator electrical wiring diagram, electrical principle circuit and solder joint diagram 197
Electrical principle circuits of Haier BCD 176BD, BCD 196BD and BCD 206BD refrigerators 199.
17 Haier BCD 190W Double Temperature and Double Control Refrigerator Circuit 199
18 Haier BCD 196KF refrigerator electrical principle circuit, electrical wiring diagram and actual circuit 200
19 Haier BCD 222BBF three-door refrigerator electrical principle circuit 202
Electrical principle circuit 202 of Haier BCD 239K/A, BCD 259K/A and BCD 289K/A inverter refrigerators
2 1 Haier BCD 248WF and BCD 288WF air-cooled refrigerator electrical principle circuit 202
Electrical principle circuit 203 of Haier BCD 252WBBS and BCD 272WBBS inverter refrigerators
Electrical principle circuit of Haier BCD 539W inverter refrigerator 203
Electrical wiring diagram and refrigeration system diagram of Haier BD 156LTA refrigerator 203
Electrical Principle Circuit of Haier HR 2 15S(BCD 206S) Electronic Temperature Control Refrigerator 204
26 Haier SD 368A commercial freezer electrical principle circuit and electrical wiring diagram 204
27 Haier Prince Charming BCD 19 1BSY, BCD 2 1 1BSY Electrical Principle Circuit 205
28 Haier Prince Charming BCD 2 19BSV, BCD 229BSV Inverter Refrigerator Electrical Principle Circuit 205
29 Haier energy-saving commander BCD 168K/A, BCD 188K/A, BCD 208K/A refrigerator electrical principle circuit 206
30 Haier BC/BD 106B, BC/BD 126B, BC/BD 146B, BC/BD 106b Electrical wiring diagram, refrigeration pipeline diagram and electrical principle circuit 206.
3 1 Haier Digital Prince BCD 176DT, BCD 196DT, BCD 206DT refrigerator electrical principle circuit 207
Haier SCD 159, SCD 189, SCD 209 and SCD 229 horizontal transparent door refrigerators' electrical wiring diagram, refrigeration pipeline diagram and electrical principle circuit 207.
33 Haier Aerospace BCD 228BF Inverter Refrigerator Electrical Principle Circuit 208
34 Hisense BCD 108A, BCD 138A Refrigerator Electrical Principle Circuit 208
Electrical principle circuit of 35 Hualing BCD 182W indirect cooling frost-free refrigerator 208
36 Yellow River BCD 220 refrigerator circuit 209
37 Kelon BCD 209W/HC Digital Eco-refrigerator motherboard circuit 2 10
38 Kelon BCD 209W/HC Digital Eco-refrigerator Power Supply Circuit 2 1 1
39 Kelon BCD 209W/HC Digital Eco-refrigerator Wiring Diagram 2 12
40 Kelon BCD 209W/HC Digital Eco-refrigerator 2 13 Microprocessor Control Circuit
4 1 Mitsubishi Manufacturer 3 125 Refrigerator Circuit 2 14
Electrical principle circuit of Samsung BCD 198NKSS and BCD 2 12NKSS double-door refrigerator 2 15.
Electrical principle circuit of Samsung BCD 220MLVP three-door refrigerator 2 15
44 Samsung RS 19NRSW refrigerator circuit 2 16
45 Samsung RSG5BLFH frequency conversion split gate 2 17 refrigerator
46 Shang Ling BCD 234W refrigerator 2 18 electrical wiring diagram
Electrical principle circuits of Panasonic NR B2 1DX 1 and NR B23DX 1 refrigerator 2 19.
Panasonic NR B24WA 1 Refrigerator 2 19 Electrical Principle Circuit
Panasonic NR C28WD 1 and NR C26WD 1 refrigerator electrical principle circuit 220
50 Electrical Principle Circuits of Panasonic NRC28W 1 and NRC26W 1 Refrigerator 22 1
5 1 Panasonic NRC28U 1 and NR C25WU 1 refrigerator electrical principle circuit 222
Electrical Principle Circuit of Panasonic NR F46 1AH and NR F46 1AX Refrigerator 223
Siemens KG 15V3 1TI, KG 18V2 1TI, kg19v1ti, kg19v3/kloc.
Siemens KG 18V65TI and KG 19V35TI refrigerator circuit 224
55 Siemens KG20V3 1TI refrigerator circuit 225
Circuit 225 of 56 Siemens refrigerators KG20V65TI, KG2 1V75TI, KK23V65TI and KK24V55TI.
57 Electrolux BCD 260EI, BCD 289EI refrigerator electrical principle circuit 226
58 Electrolux BCD 290EI, BCD 29 1EI Refrigerator Electrical Principle Circuit 226
59 Electrolux GR S28NDF, GR S28NDP, GR S32NDF, GR S32NDP refrigerator electrical principle circuit 227
Chapter VI Physical Disassembly 228
Q&A 1 How to disassemble and repair the refrigerator compressor? 228
Q&A 2 What should I pay attention to when disassembling the fully enclosed compressor? 228
Q&A 3 What should I pay attention to during refrigerator handling? 229
Q&A 4 What should I pay attention to when installing a refrigerator? 229
Q&A 5 Why should the refrigerator be grounded? 230
Q&A 6 Why can't I share the socket with other household appliances when installing the refrigerator? 230
Q&A 7 What should I pay attention to when installing an electric freezer? 23 1
Q&A 8 How to remove the refrigerator door seal? 23 1
Q&A 9 How to open the door of the super refrigerator? 23 1
Q&A/How to disassemble the 10/0 capillary? 232
Q&A 1 1 How to remove the thermostat of the refrigerator? 232
Q&A 12 How to remove the drying filter? 233
Q&A 13 How to disassemble the evaporator of refrigeration system? 234
Q&A 14 How to remove the starting relay and thermal protection relay? 235
Q&A 15 How to exchange the left and right doors of refrigerator? 235
Q&A 16 What should I pay attention to when disassembling the refrigerator refrigeration system? 236
Q&A 17 How to Foam the Insulation Layer of Refrigerator (Cabinet)? 237
Q&A 18 How to change the refrigerator light bulb? 237
Q&A 19 How to disassemble Panasonic refrigerator? 238
Q&A 20 How to disassemble the refrigerator in Electrolux? 245
Q&A 2 1 How to disassemble Haier refrigerator? 248
Q&A 22 How to disassemble Haier freezer? 253
Q&A 23 How to disassemble and assemble the refrigerator with opposite doors? 255
Q&A 24 How to disassemble the Samsung refrigerator? 260
Chapter VII Comparison of English and Chinese Common Nouns 270