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Title :- General maintanance guidlines for a household refrigrator, desert, colour common problem & their remedies.

Submitted To :- Govt. Poly. College Ajmer.(Mechanical Dept.)

- G.N Pareek Sir (Project teacher)

By - Group - A [Ajit Thakur, vikram bhatnagar, rupesh mandrawliya, vijay singh rawat, rajendra singh rawat , sunil jangid, sunil singh rawat, sorav singh rawat, hansraj kumhar , sagar suwal ]

In Session -  (2019-20)

Head of Department - Vivek Saxena Sir

General maintenance guidlines for a household refrigrator , desert cooler common problem & their remedies.

Household Refrigerator maintenance guidlines :-

1. Clean the coils

2. Maintain the template

3. Check the Gasket

4. Change Filters

5. Close the doors

6. Stay level

7. Empty the Ice

8. Refrigrator placement

9. Cover food & fill it

Refrigerator Problem & Remeddies

Problem	Remedies
Refrigerator does not run and the light does not work	- Make sure that refrigerator is plugged - Test the power outlet for current use voltmeter. - check defrost control.
Refrigerator does not run, but the light work	- Check the Temp. Setting - Clean the condensor coils, Before cleaning condensor coils, please unplug refrigarator Make sure that there is a 3 inch space outside of the refrigrator & wall . atleast 1 inch gap above to allow flow air.
Refrigerator is not cold enough	- check the temp. Setting controls should be set in the middle range. - check the door seals close a door against a dollar bill , try to pull out , slight tug is necessary
Water dripping inside the refrigerator under the crispin or on to the kitchen floor	Self defrosting ref despose of the water generated during the defrost cycle via a tube that directs the water to a pan at the bottom of the refrigretor from the pan the water normally evaporators.

Desert cooler maintanance :-

1. Motor & pump oiling.

2. Cleaning of water tank against scaling

3. Checking for any loose connection in internal electrical components.

4. Cleaning of the submersible pump impeller & other part of propeller

5. Cleaning of water distribution pipe/channels for even distribution of water on all sides.

6. Cleaning of internal / external parts of cooler body.

Problem	Remedies
1. There is a dirt in the passage which distrupts the flow of water on one side and increase the flow on other side. This leads to an overflowing one side & water starts appearing one side & waater starts appearing in the passahe of fan pulling the air.	- clean the cooler and put a plastic mesh on hay pad. This will ensure no water spillage.
2. Cooling in not proper the main problem is in the water pumping motor.	- check the motor whether it is working properly.
3. Grass is not wetted properly.	- change the motor problem will be solved immediately.
4. Water will evaporate more than normal.	- please  thick the grass (pads) layer so no hole is presence in grass.
5. Motor for alignment is wrong	- please set motor aligment.
6. Cooler motor legs are vibrated and not tight.	- please tight the legs with tight nut & bolt.
7. If pump doesn’t lift the water & water always put in cooler tank.	- check the pump if pump is not proper change the pump.
8. Leakage in water pipelines & pads doesn’t wet properly	- if hole change the pipe or not large hole repair it.