When a technician replaces a geyser thermostat, they typically perform the following steps:

1. Turn Off the Power Supply

• The technician first ensures that the power to the geyser is completely turned off by switching off the circuit breaker or disconnecting the power supply to avoid any electrical hazards.

2. Turn Off the Water Supply

• The technician will also turn off the water supply to the geyser to avoid any leakage or flooding while working on the appliance.

3. Drain the Water (if required)

• In some cases, the technician may need to drain the water from the geyser. This is done by opening the drain valve at the bottom of the geyser and allowing the water to exit.

4. Remove the Geyser's Outer Cover

• The outer cover or casing of the geyser is removed, often by unscrewing the screws that hold it in place. This exposes the internal components, including the thermostat.

5. Locate and Inspect the Thermostat

• The technician locates the thermostat, which is typically attached to the heating element. They may inspect the existing thermostat to ensure it’s faulty or needs replacement.

6. Disconnect the Wiring

• The technician will carefully disconnect the wires attached to the thermostat. This step is done with caution to avoid any damage to the wiring or connections.

7. Remove the Old Thermostat

• Once the wires are disconnected, the technician removes the old thermostat. This may involve unscrewing it or detaching it from its mounting location.

8. Install the New Thermostat

• The new thermostat is then installed in place of the old one. The technician ensures that it is properly mounted and secured.

9. Reconnect the Wiring

• The technician reconnects the electrical wiring to the new thermostat. This is done by following the correct wiring diagram or matching the wiring from the old thermostat to the new one.

10. Reassemble the Geyser

• After installing the new thermostat and reconnecting the wiring, the technician reassembles the outer casing of the geyser by screwing the cover back into place.

11. Turn On the Water and Power Supply

• The technician turns the water supply back on and checks for any leaks around the water inlet or thermostat area. They then restore the power supply to the geyser.

12. Test the New Thermostat

• The technician tests the geyser to ensure the new thermostat is functioning properly. They may adjust the temperature settings on the thermostat to ensure that it’s working as expected.

13. Check for Proper Operation

• Finally, the technician checks that the geyser is heating the water to the desired temperature and that the thermostat responds accurately to temperature changes.

14. Final Inspection and Clean-Up

• The technician cleans up any water or debris around the geyser and performs a final inspection to ensure everything is functioning properly. They may also check for any signs of potential issues such as leaks, faulty wiring, or incorrect temperature settings.

15. Provide Instructions (if necessary)

• If necessary, the technician may provide the user with instructions on how to use the new thermostat or any additional maintenance tips for the geyser.

16. Bill and Documentation

• Finally, the technician provides the customer with the bill, which includes details of the service provided, any parts replaced, and warranty information. If applicable, they may provide a receipt for the work done.

This outlines the typical steps a technician follows when replacing a geyser thermostat, ensuring that the appliance works safely and effectively.