Haier MK-2280M, MK-2280MG User Manual
Semi-electronic
Microwave Oven
Service Manual
MK-2280M
MK-2280MG
Features
●
Safe to use
●
Shining appearance
●
● Healthy and germicidal
High-temperature grill （Only MK-2280MG）
●
Haier Group
Edition:2005-11
- 1 -
- 11
Contents
Contents
1. Contents……………..…………………………………………………………………1
2. Product Code illumination and Series Introduction ……………………...…...2
3. Features….……………………………………………………..…………………….3
4. Specifications……..…………………………………………...………………….4
5. Safety Precaution…………………………………………..………………………5
6. Warning and Cautions……………………………………………………………..6
7. Installation and Accessory Parts…………………………………………………9
8. Parts and Functions………………………………………………………………..11
9. Maintenance Service and Trouble Shooting…………………………………...12
10. Circuit Diagram and Circuit Explanation………………………………………..23
11. Exploded View and Part of Lists
………………………………………………...29
- 2 -
Product Code illumination and Series Introduction
2.Product Code illumination and Series Introduction
Model Identification
M K -□ □ □ □ □ □
A B C D E F
A: Abbreviation of Microwave Oven.
B：Appearance
c: Code name of Nominal cavity capacity.
D: One tenth of the microwave output power consumption.
E：Type of operation
M：Mechanical E：Electronic
F---Function With G：Grill function
Examples:
MK-2280MG：
It represents mechanical microwave oven with grill function, the cavity
volume is 21L, the microwave output power is 800w, K appearance.
MK-2280M：
It represents mechanical microwave oven without grill function, the cavity
volume is 22L, the microwave output power is 800w, K appearance.
- 3 -
Features
3.Features
3.1 Safe to use
The door adopts unique anti-choke structure and integrated punch forming, and thus
effectively prevents the microwave from leaking.
It is controlled by two-step interlock switch. The power will be switched off
automatically when the door is open, therefore it is much safer to use.
3.2 Shining appearance
The door shell and operation panel frame shell adopt in ported high-quality stainless
steel material, and will never get rust and change color. It has modern appearance and
superior quality, and thus becomes the best choice for the household microwave oven.
3.3 Healthy and germicidal
It is produced with antiseptic materials, and can suppress the reproduction of the
bacteria effectively. The special function of the microwave oven can eliminate the germ in
the food quickly and completely.
3.4 Simple operation and accurate time counting
With two knobs, one for adjusting time and another for power levels, plus LED display,
on which cooking time is displayed, it has feature of simple operation of mechanical
microwave oven as well as accurate time counting of electronic microwave oven.
- 4 -
4.Specifications
Item Description
Model MK-2280M MK-2280MG
Specifications
Power source
～230V/50Hz ～230V/50Hz
Input Power consumption 1300W 1300W
output Power consumption 800W 800W
Power consumption
-------- 1000W
For grill
Oscillating frequency 2450MHz
Timing range 30’
Power level 4 4
Unit Dimension
(W×D×H)mm
486×370×288 486×370×288
Cavity Dimension
(W×D×H)mm
302×318×221 302×318×221
Carton Dimension
(W×D×H)mm
538×394×350 538×394×350
Volume/
22L 21L
effective volume
Weight(unit/carton) 14Kg 14.5Kg
Instruction manual, glass tray, turn
Accessories
plate-bracket groupwaregl, turn axis
- 5 -
Safety Precaution
5.Safety Precaution
Only professional technicians can do the maintenance. Please refer to the proper
maintenance procedures in the service manual for safe operations, so as to avoid
unexpected injury.
Points of attention during maintenance:
1. Do not operate the microwave oven while the door of the oven is open.
2. Please check following before operation: (1) the door lock is flexible; (2) the door
works well in opening and closing; (3) the door is sealed well (without deforming and
bending); (4) identify any damage and loosening of the components and accessories;
(5) identify damages owing to abnormal usage or dropping.
3. Please confirm that the magnetron, microwave conductor pipe and wire are installed
and connected well before switch on the power to do maintenance or check the
functional components.
4. In case that the door lock, seal gasket, microwave radiating and transmission system
are damaged, or something wrong in debugging, please make repair, replacement or
adjustment according to the requirement of this manual before usage.
Components detachable that may
touch voltage higher than 250V
1. Magnetron
2. High-voltage transformer
3. High-voltage capacitor
4. High-voltage diode
5.
H.V. FUSE
During maintenance, the technicians shall pay attention that:
Microwave radiation
Do not expose to the radiation emitted by the microwave generator or other parts
transmitting the microwave.
Components that may cause excessive
microwave leakage
1. The magnetron is not properly installed on the
wave guide;
2. The door hook, door body and the up/down
hinge are not properly adjusted;
3. The door body or the shell is damaged;
The above reasons may cause excessive
microwave leakage.
Attention
- 6 -
Safety Precaution
Attention: The mark must be exactly lined up with a power level. Otherwise there is a continuous
beep tone indicating microwave can’t work properly.
- 7 -
6.Warning and Cautions
Warning and Cautions
Danger
Do not apply excessive force to the door.
It may cause distortion of the door and
result in microwave leakage.
Warning
Danger
warning
Electric
Attention
shock
hazard
Do not use a metal rod to enter the interlock
switch hole on the front side of the cavity.
interlock switch hole
Danger
Do not use sealed containers. For those
foods with skin, please prick holes on the
skin.
No
dismantle
warning
Do not cook eggs in their shell as they may
burst.
warning
Do not use the microwave oven for purposes
other than for cooking food.
warning
- 8 -
Remember to clear away excess grease
form the inside the cavity. Otherwise it may
cause smoke or fire during heating.
warning
This appliance must be earthed.
safe and
reliable
warning
A
Warning and Cautions
When roasting, the face of the door and
the top of the cabinet may become hot to
touch.
warning
Do not use metallic dishware to cook as it
will cause internal arcing.
warning
Waring
Do not use the microwave with the cavity
empty. It will damage the microwave oven.
warning
llow the cavity to cool after long cooking
processes (i.e. Roasting) before starting
another cook cycle.
warning
If the door seal or the door body is damaged, please do not use the
1.
appliance until it is repaired by an authorised service agent.
2. Before use, please check if the cooking containers are suitable for
the microwave oven.
3. If you find smoke in the oven, leave the door in the closed position, and
switch off the power supply of the microwave (remove the plugtop from
the supply socket).
4. We do not recommend the use of plastic, paper or other combustible
containers for cooking, Please be sure to observe the operating
instruction for the microwave oven, in order to avoid accidents.
5. When you heat liquid in the oven, please take care of delayed bubbling
because of boiling liquid.
Do not use the microwave oven if there is no food inside.
6.
7.
Do not use product for any industrial and commercial purpose.
- 9 -
Warning and Caution
1 Baby food or drink should be shaken or stired evenly so that the heat is distributed and
may only be handed to your child after having checked the temperature of the food or
drink.
2 .Never put combustible materials near the microwave oven. Watch the cooking
condition while the microwave oven is working. Set cooking time correctly, for over time
setting may cause fire.
POINTS OF ATTENTION
Not like the other household appliances, the microwave oven is a kind of
high-voltage appliance. Although common operations will not risk the user in
hazard, please operate it carefully.
1. Do not use duplex receptacle in usage and maintenance.
2. Do not touch any components and circuit when the microwave is running.
3. Be sure to switch off the power before you touch the inside structure of the oven.
4. The high-voltage capacitor may still maintain electricity even 30 seconds after the
microwave oven stops working. To make replacement or checking at this time, be sure
to use insulated screwdriver to short out the two ends of the capacitor and discharge
the stored electricity.
5. Prevent the wristwatch from touching the microwave oven.
6. Do not operate the microwave oven when there is no food or water inside.
7. Protect the seal gasket and front board of the oven door from damage.
8. Do not put metal tools on the magnetron.
9. Do not put any items into the hole of the door lock or the door lock switch.
10. Confirm that the magnetron is installed properly and firmly.
Only professional technicians can do the maintenance of this
microwave oven.
- 10 -
7.Installation and Accessory Parts
7.1 Installation
Installation and Accessory Parts
Do notinstall the microwave oven in
an environment that is humid or with
high temperature.
attention
7.2 key Point In Installation Adjustment
Attention
Please read following before installation.
7.2.1 Install the microwave oven
1. Clear all of the items inside the oven, then wipe the cavity with wet soft cloth. Check if
the door is even, and if there’s damage on the inner/outer side of the door.
2. The microwave oven, the food and the cooking tools shall be placed on firm and stable
table, desk or shelf. During delivery please note that the side with control panel is much
heavier.
3. Do not block the ventilation hole and air inlet. Otherwise it may damage the oven or
cause poor cooking. Confirm that the oven shelf is placed properly to guarantee the
ventilation.
4. Avoid high temperature and vapor. Protect the appliance and the mechanical part from
damages.
5. The ambient temperature shall be lower than 40℃.
6. The plane bearing the oven shall be even and firm.
7. Keep the microwave oven away from the TV, radio, computer, etc. to avoid
interference.
7.2.2 Installation of the earth wire
The microwave oven must be earthed before use. Please pay special attention on that.
Warning: This microwave oven must be earthed.
- 11-
Loading...