Page 225 - Electronic Mechanic - TP - Volume - 2

ELECTRONICS MECHANIC - CITS

EXERCISE 176: Demonstrate Replacing of coil and fixing

insulation failure problems. Remove scale
formation from heating element

Objectives

At the end of this exercise you shall be able to
• to service & repair geyser
• to demonstrate replacing heating element of geyser
• to locate the faults in geyser and solve them.

Requirements

Tools/ Materials
• Cable stripper (0.75mm-2.5mm) - 1 No. • Geyser heating element (2400w) - 1 No.
• Crimping tool - 1 No. • Geyser thermostat - 1 No.
• Combination pliers - 1 No. • 3 core flexible cord (16A/3pin) - 1 No.
• Phase tester - 1 No. • Test lamp (100w) - 1 No.
• Geyser (2400 w) - 1 No.

Procedure

Theory:

An electric geyser is a type of water heater that uses electricity to heat water. It typically consists of a tank (or
cylinder) to store water and one or more electric heating elements that warm the water when activated.
Here’s how it generally works

1 Cold Water Inlet: Cold water enters the geyser through a pipe connected to the main water supply.
2 Thermostat and Heating Element: Inside the geyser tank, there are one or more heating elements controlled
by a thermostat. When the temperature of the water drops below the set level, the thermostat activates the
heating element(s) to warm the water.
3 Hot Water Outlet: Once the water reaches the desired temperature, it’s ready for use. Hot water is drawn from
the top of the tank through a separate outlet pipe.

4 Insulation: Geyser tanks are usually insulated to help retain heat and prevent energy loss.

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