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Home Appliances
Here are some
examples on the basic construction of some home
equipments .
They are 1) fixing of electric iron
2) fixing of electric toaster
3) fixing of electric kettle
4) fixing of electric water heater
5) fixing of electric lamp
Fixing
of Electric Iron
An electric
iron is a heating device . The faults mostly lie in the
spare parts . Here are some symptoms that you will
face when your
iron breaks down .
| SYMPTOMS |
POSSIBLE CAUSES |
| 1) Iron does not heat up |
1. Blown fuse
2. Broken thermostat
3. Broken power cords
4. Broken heating elements |
| 2) Iron does not get hot enough or
gets too hot |
1. Faulty thermostat
2. Incorrectly adjusted thermostat |
| 3) Plug's fuse blows |
1. Short circuit in the iron
2. Short circuit in power cord |
| 4) RCCB trips |
1. Power cord grounded
2. Heating element grounded |
Fixing
of Electric Toaster
Electric
toaster is a heating device . When an
electric current passes through a high resistance wire
(heating element) , temperature
of the wire to increase .
After a while the heating element becomes red hot
and the
bread will be toasted . Here are some symptoms that you
will face
if your electric toaster breaks down .
| SYMPTOMS |
POSSIBLE CAUSES |
| 1) Toaster does not heat up when the
cartridge is fully depressed |
1. Blown fuse
2. Faulty switch
3. Broken power cord |
| 2) Toast does not pop up |
1. Lift spring broken
2. Latch release mechanism or switch faulty
|
| 3) Toast smokes |
1. Faulty switch contacts may be fused
2. Faulty switch contact arms may be
badly bent or may have lost their spring |
| 4) RCCB trips |
1. Grounded |
| 5) Plug fuse blows |
1. Short-circuit |
| 6) Bread does not toast to desired
colour sometimes too dark or too
light |
1. Faulty thermostat
2. Thermostat not properly set |
| 7) Bread does not toast to desired
colour sometimes toasted on one
side only |
1. One of the heating element may be
broken
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Fixing
of Electric kettle
The
electric kettle is also a heating device . It is able to boil water fast
because the heating element is in direct contact with the
water so very little
heat is wasted . Here are some symptoms that you
will face if your electric
kettle breaks down .
| SYMPTOMS |
POSSIBLE CAUSES |
| 1) Water not heated |
1. No supply 2. Open circuited power cords
3. Open circuited heating
element
|
| 2) RCCB trip |
1. Grounded |
| 3) Plug fuse blown |
1. Short circuit
2. Grounded |
Fixing
of Electric Water Heater
The
electric water heater is also a heating device . Here are some
symptoms that you will face if your electric water heater
breaks down .
| SYMPTOMS |
POSSIBLE CAUSES |
| 1) Insufficient hot water |
1. Dirty heating element 2. Leaking hot water faucets 3.
Low supply voltage 4. Wrong thermostat setting 5.
Defective thermostat |
| 2) No hot water |
1. Faulty thermostat
2. No power supply
3. Defective hearing element |
| 3) Water leaks from heater |
1. Defective pressure relief valve
2. Loose mounting bolts or torn
gasket at the heating element
3. Leaking drain clogged or loose
pipe fitting
|
| 4) Water too hot |
1. Defective thermostat
2. Defective heating element
3. Wrong thermostat setting
|
| 5) Insufficient hot water
followed by hissing or sizzling
noises
|
1. Sediment or scale in tank or in
the elements
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Fixing
of electric lamp
The electric lamp is a lighting
device . Here are some
symptoms that you will face if your electric lamp
breaks
down .
| SYMPTOMS |
POSSIBLE CAUSES |
| 1) Lamp does not light up |
1. The bulb may be blown ,
change a new bulb
2. Cable not properly connected |
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