Sanyo SM-GA0005 service manual Common Breakdown of Microwave Oven and Means of Repairing

Page 25

7. COMMON BREAKDOWN OF MICROWAVE OVEN AND MEANS OF REPAIRING

PHENOMENON

 

 

CAUSE

 

 

 

 

REPAIRING MEANS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8A fuse broken.

 

 

 

 

Change a new fuse.

 

 

 

 

 

 

 

The primary and secondary winding of the

 

 

 

 

 

 

 

Change a new transformer.

 

 

 

 

 

 

transformer are short – circuited.

 

 

1.

When

 

starting

the

 

 

Change a new capacitor.

 

The earthing or the polarity of the polarity of

 

Change a new pilot switch.

oven, the lamp is not on,

the capacitor is punctured.

 

 

 

the

turntable tray

can’t

The pilot switch can’t cut off.

 

 

Change

a

new

interlock

rotate and the food can’t

 

 

switch.

 

 

 

The interlock switch hasn’t closed.

 

 

 

 

be heated

 

 

 

 

 

Adjust the connection or

 

 

 

 

The power plug and the socket are not in

 

 

 

 

 

 

 

 

 

 

 

 

replace it by a new one.

 

 

 

 

 

 

good connection.

 

 

 

 

 

 

 

 

 

 

 

 

Change a new hook.

 

 

 

 

 

 

 

The door hook broken.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The primary and secondary winding, the

 

 

 

 

 

 

 

 

 

 

filament of the transformer are open –

 

 

 

 

2.When

 

starting

the

circuit-ed.

 

 

 

 

Change a new transformer.

oven, the lamp is on, the

The magnetron filament is open – circuited,

Change the magnetron.

turntable rotating, the fan

the magnetic steel of the magnetron broken

cycling but the food can’t

or the magnetron is air leaking.

 

 

Change

the

time

power

be heated.

 

 

 

Time and power distributor broken.

 

distributor

or

the

 

 

 

 

 

 

The plugs of the magnetron or the capacitor

micro-switch.

 

 

 

 

 

 

 

 

loosed.

 

 

 

 

Fix them.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.

The

food

can

be

The lamp broken.

 

 

 

Change a new lamp

 

heated, but the lamp is

 

 

 

 

The plug falls off.

 

 

 

Insert the plug again

 

not on

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4. The food can be

The turntable motor broken

 

 

Change the turntable motor

heated but

the

turntable

The plug fall off

 

 

 

 

Inset the plug securely

tray is not rotating.

 

Connecting shaft weave broken

 

 

Change the weave

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The

winding

of the

fan

motor

in

 

 

 

 

5. The oven can heat

open-circuited.

 

 

 

 

1.Change the fan motor

The fan falls off

 

 

 

 

 

 

 

 

2.Change the fan

 

within 2-3

minutes,

but

The plug of the fan motor falls off

 

 

 

can

not

heat

from

the

 

 

3.Insert the plug

 

The

turnatable

shaft is

griped

with

the

 

fourth minutes

 

 

4.Overhauling them

 

 

 

mo-tor bearin

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.Repairing it

 

 

 

 

 

 

 

 

The cooling vent blocked

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6.

When

 

starting

the

The high voltage diode was punctured

 

Change a new diode

 

oven, it can’t heat, and

 

 

with “wenwen” noise.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7. The oven can heat, but

The iron core of the transformer loosed

 

Change a new transformer

with sound “shishi” noise

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The door deformed

 

 

 

Mend the door

 

 

 

 

 

 

 

 

The door metal net cracked

 

 

Change the door

 

 

 

 

 

 

 

The gap of the door crack is too large

 

Adjust the gap

 

 

8.

Large

amount

of

The welding point of the oven falls off

 

Change the oven

 

microwave leakage

 

The screws which fix the magnetron loosed

Tighten the screws

 

 

The wave guide connection oxidized

 

Scrape

the

oxidized and

 

 

 

 

 

 

 

 

 

 

 

 

 

The magnetron copper filament washer is

tighten the screws

 

 

 

 

 

 

 

too thin cause the wave guide opening not

Thick the copper

filament

 

 

 

 

 

 

in good earth.

 

 

 

 

washer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24

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Contents Microwave Oven Introduction Avoid Possible Exposure to Excessive Microwave Energy Safety PrecautionsEM-W3000W Microwave Oven Explode Drawing EM-W3000W Microwave Oven Parts /Components List Heating Principle of Microwave High Voltage Rectifying Circuit Structure and Working Principle of Microwwave OvenCooling System Microwave GeneraterElectric Control System Time and Power Distributor Door Interlock SwitchElectric Level Control Heating Chamber Thermal CutoutTypical Circuit Analyasis of Microwave Oven Schematic DiagramCabinet HOW to Assemble and Disassemble Microwave Oven Components（a） （b） Door CombinationMagnetron Control Panel and the Door Release MechanismFAN Motor TransformerDiode CapacitorDoor Safty Interlocks Turntable CombinatiomControl panel Control Panel of a Typical Microwave OvenExamining the Breakdown Causes Breakdown Analysis and the Means of OverhaulingSpot Examining Steps of the Microwave Oven Magnetron Examine the Starting and the 8A Fuse of the Microwave Oven MagnetronRight above Repairing Method of Several BreakdownMicrowave Leakage InsulationMicrowave Heating Critical Parts Servicing Interlock Assembly Replacement and AdjustmentImportant Things to do Prior to Critical Parts Servicing Microwave DefrostPhenomenon Cause Repairing Means Common Breakdown of Microwave Oven and Means of Repairing2450MHz Specifications

SM-GA0005 specifications

The Sanyo SM-GA0005 stands out as an innovative device that blends functionality and design, catering to the needs of modern users. This device has garnered attention for its robust set of features, cutting-edge technologies, and practical characteristics that enhance user experience.

One of the most prominent features of the Sanyo SM-GA0005 is its sleek design, which combines aesthetics with ergonomic functionality. Its lightweight body makes it easy to carry, and the minimalist approach to its interface allows for intuitive navigation. The display is vibrant, offering sharp visuals that enhance multimedia experiences, from watching videos to viewing photographs.

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