REPAIR AND MAINTENANCE OF REFRIGERATOR
Name of Sector Refrigeration & Air Conditioning Name of Module Repair And Maintenance Of Refrigerator
Minimum Age 18 Years Duration of Course 6 Months
ADU Code REF 703

Degree in Mechanical Engineering with one year Experience

(OR)

Diploma in Mechanical Engineering with two year Experience

(OR)

NTC/ NAC in RAC Trade with three years of Experience



1. Familiarization of refrigeration tools, Instruments & Equipments.

2. Tube cutting, bending, flaring, swaging, brazing, welding.

3. Measuring Current, voltage and resistance.

4. Check open circuit, short circuit and earth of hermetic compressor.

5. Identify starting , running, common terminal.

6. Check relay, OLP, thermostat, door switch, refrigerator Bulb.

7. Check the wiring circuit of refrigerator.

8. Check the efficiency of hermetic compressor.

9. Dismantle and Assemble hermetic Compressor.

10. Identify the trouble and rectification.

11. De scaling refrigerator condenser.

12. Flushing Condenser and Evaporator.

13. Leak Testing, Evacuation, Gas Charging In Refrigerator.

14. Servicing the refrigerator.

15. Check the performance of refrigerator.

16. Installation of Refrigerator.



Underpinning Knowledge (Theory) Practical Competencies
  • Safety Precautions, study the function and working of refrigeration tools, Instruments & Equipments.
  • Study the construction and working of V.C. Cycle of refrigerator.
  • Study the current, voltage, resistance measuring.
  • Study the open circuit, short circuit and earth testing.
  • Study the different types of motors used in refrigerator.
  • Study the different types of relays, OLP, thermostat, heaters, fan, timer used in refrigerator.
  • Study compressor, condenser, capillary tube, drier, and evaporator.
  • Refrigerant used in refrigerator
  • Study the trouble shooting in refrigerator.
  • Study the types of refrigerator.
  • Study the specification of refrigerator
  • Faults and remedies of refrigerator.
  • Care and maintenance of refrigerator.
  • Familiarization of refrigeration tools, Instruments & Equipments.
  • Tube cutting, bending, flaring, swaging, brazing, welding.
  • Measuring Current, voltage and resistance.
  • Check open circuit, short circuit and earth of hermetic compressor.
  • Identify starting , running, common terminal
  • Check relay, OLP, thermostat, door switch, refrigerator Bulb.
  • Check the wiring circuit of refrigerator.
  • Check the efficiency of hermetic compressor.
  • Dismantle and Assemble hermetic Compressor.
  • Identify the trouble and rectification
  • De scaling refrigerator condenser.
  • Flushing Condenser and Evaporator.
  • Leak Testing, Evacuation, Gas Charging In Refrigerator.
  • Servicing the refrigerator.
  • Check the performance of refrigerator.
  • Installation of Refrigerator.