Midea JZ*-Q40 SERIES, 75G50*****-G SERIES, JZ*-Q501G SERIES, JZ*-Q44 SERIES, JZ*-Q41 SERIES Service Manual
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1
Service Manual
For Built-in gas hob
Model list:
JZx-Q40xxxx, JZx-Q41xxxx,
JZx-Q44xxxx, JZx-Q45xxxx
JZx-Q501Gxx JZx-Q502Gxx
JZx-Q502Sxx 60Qxxxxxxx
60Gxxxxxxx- xxx 70Gxxxxxxx- xxx
75G50xxxxx- Gxx 75G50xxxxx- Sxx
90Gxxxxxxx- Gxx 90Gxxxxxxx- Sxx
Warnings:
This service manual is not available to the general users, but only applies to
professional technicians with relevant qualifications. Any incorrect maintenance
may result in other dangers!
The power and gas supply must be cut off before maintenance!
A new power cord which meets the relevant technical requirements must be used
once possible hidden malfunctions are found with the current power cord (refer to
this Manual)!
Please read carefully all safety warnings in this Manual before maintenance!
The product is prohibited from using until test is conducted as per relevant
regulations after maintenance!
This service manual applies to many models, so the specific operations please prevail in
kind!
V3.0
May, 2015
2
Catalogue
1. Precaution ........................................................................................................................ 4
1.1. Safety Precaution ............................................................................................................................................ 4
1.2. Warning ........................................................................................................................................................... 4
2. Description of the appliance ............................................................................................ 5
2.1. Features ........................................................................................................................................................... 5
2.2. Components and parts .................................................................................................................................... 6
3. Installation ....................................................................................................................... 7
3.1. Dimension ........................................................................................................................................................ 7
3.2. Installation Dimension ..................................................................................................................................... 8
4. Electric Diagram ....................................................................................................................................... 9
5. Reassembly and Disassembly ........................................................................................ 10
5.1. Safety precautions ......................................................................................................................................... 11
5.2. Tools .............................................................................................................................................................. 11
5.3 Disassembly .................................................................................................................................................... 12
5.3.1. Disassemble the Top Plate ..................................................................................................................... 12
5.3.2. Disassemble the Thermocouple ............................................................................................................. 13
5.3.3. Disassemble of the Ignition Pin .............................................................................................................. 13
5.3.4. Disassemble of the Microswitch Harness .............................................................................................. 13
5.3.5. Disassemble of the Gas Pipe .................................................................................................................. 14
5.3.6. Disassemble of the Bottom Cup ............................................................................................................. 14
5.3.7. Disassemble of the Power Cord Assembly ............................................................................................. 14
5.3.8. Disassemble of the igniter ...................................................................................................................... 15
5.3.9. Disassemble of the Valve & Manifold Pipe Assembly ............................................................................ 15
5.310. Disasmble of the Gas Connection ......................................................................................................... 16
5.3.11. Disassemble of thebottom plate .......................................................................................................... 16
5.4. Reassembly .................................................................................................................................................... 17
5.4.1. Reassemble of the Ignition Pin ............................................................................................................... 17
5.4.2. Reassemble of the Thermocouple.......................................................................................................... 17
5.4.3. Reassemble of the Gas Pipe……………………………………………………………………………………………………………..17
5.4.4. Check Point after assemble .................................................................................................................... 17
6. Troubleshooting ............................................................................................................. 17
6.1. Troubleshooting ............................................................................................................................................ 18
6.2. Problems and Corrective Measures .............................................................................................................. 19
6.3. Maintenance and test ................................................................................................................................... 21
7. Gas Conversion .............................................................................................................. 22
7.1. Replacement of gas-type fitting .................................................................................................................... 22
3
7.2. Replacement of the injector of the burners .................................................................................................. 22
8. Appendix ........................................................................................................................ 24
Technical & quality requirements for Built-in gas hob......................................................................................... 24
4
1. Precaution
1.1. Safety Precaution
1. Do not modify this appliance. This appliance should be serviced by an authorized person.
2. All repairs should be done in accordance with the procedures described in this manual.
3. Before you begin, turn off the gas and electricity supply to the appliance. Remove
remaining gas in product completely by igniting burner.
4. Be sure that all of built-in protective devices are replaced. Restore any missing protective
shields.
5. Do not connect the gas and electricity supply before replacement complete.
6. Use replacement components that have the same ratings. A replacement part that does not
have the same safety characteristics as the original might create shock, fire or other
hazards
7. You must conduct a gas leakage test after receiving after-sales service in gas pipe and gas
connector. Never touch any circuit wiring with your hand nor with uninsulated tool during
operation.
1.2. Warning
1. The power cord shall be replaced with the original power cord, specifications for an
insulation power line which is no less than AWG8*2 +AWG10*1 and resists
temperature of greater than 60℃.
2. All apparatus within a radius of 50mm from this product must resist temperature of
greater than 75°C, otherwise, deformations are easily to be caused during the
application process of this product.
3. When the wrapping materials are removed, keep such materials like metal sheet,
packing bag, foam and screws out of reach of children’s reach to avoid potential
dangers. For example, the children may suffocate as a result of swallowing tiny
components or playing with packing bag.
5
2. Description of the appliance
2.1. Features
Glass: Q502 GXX
Stainless：Q411 SXX
6
2.2. Components and parts
(1). Burner
(2) .Pan support
(3). Knob
(4) .Drip tray
7
3. Installation
3.1. Dimension
Model
W (mm)
H (mm)
D (mm)
Q40xxxx
590
95
500
Q41xxxx
590
95
500
Q44xxxx
580
95
510
Q45xxxx
600
95
510
Q501Gxx
705
110
460
Q502Gxx
770
110
510
Q502Sxx
760
110
500
60Qxxxxxx
580
86
500
60Gxxxxxxx- xxx
600
110
510
70Gxxxxxxx- xxx
705
110
510
75G50xxxxx- xxx
750
90
510
90Gxxxxxxx- xxx
860
100
520
Note: Dimensions for reference only
8
3.2. Installation Dimension
Cut out size:
Model
W(mm)
D (mm)
T(mm)
Q40xxxx
553
473
30(min)
Q41xxxx
553
473
30(min)
Q44xxxx
560
490
30(min)
Q45xxxx
580
490
30(min)
Q501Gxx
667
470
30(min)
Q502Gxx
730
470
30(min)
Q502Sxx
730
470
30(min)
60Qxxxxxxx
560
480
30(min)
60Gxxxx08x- xxx
553
473
30(min)
60Gxxxx4xx- xxx
553
473
30(min)
60Gxxxx006- xxx
580
490
30(min)
60Gxxxxxxx- xxx
560
490
30(min)
70Gxxxxxxx- xxx
560
490
30(min)
75G50xxxxx- xxx
730
490
30(min)
90Gxxxxxxx- xxx
850
490
30(min)
Note: Dimensions for reference only
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