A technician's work for solar geyser repairs typically involves several key tasks to ensure the system operates efficiently. Here’s a breakdown of the common repairs and maintenance steps a technician might follow:

1. Initial Inspection and Diagnosis:

• Assessment of the Solar Geyser System: The technician begins by visually inspecting the system, checking the solar panels, geyser tank, piping, wiring, and electrical components.
• Diagnosing the Problem: The technician may identify common issues like insufficient hot water, leaks, low pressure, or system malfunctions.

2. Checking the Solar Panel Array:

• Cleaning the Solar Panels: Dirt and debris can reduce the efficiency of the panels, so the technician may clean them to maximize sunlight absorption.
• Inspecting the Solar Panels for Damage: The technician checks for any physical damage, such as cracks, corrosion, or wear.
• Testing the Output of the Panels: Using a multimeter, the technician checks the electrical output of the panels to ensure they’re generating the expected voltage and current.

3. Inspecting the Collector/Heat Exchanger:

• Heat Transfer Fluid Check: The technician examines the heat exchanger for blockages or leaks. This part transfers the heat absorbed by the solar panels into the water in the geyser tank.
• Flushing the System: If there are any blockages or mineral build-up, the technician may flush the system to ensure proper fluid circulation.

4. Checking the Tank and Plumbing:

• Inspection for Leaks or Corrosion: The technician checks the geyser tank and associated pipes for any leaks or signs of corrosion, which can reduce efficiency.
• Pressure Relief Valve Check: Ensuring the pressure relief valve is functioning correctly is essential to avoid pressure build-up.
• Checking for Sediment Build-up: Sediment in the tank can affect the system’s heating efficiency, so cleaning may be needed.

5. Electrical Component and Wiring Check:

• Thermostat Inspection: The technician will check the thermostat to ensure it’s functioning properly and controlling the temperature of the water correctly.
• Inverter/Controller Check: If the system includes an inverter or controller, the technician will test it to ensure that the power from the solar panels is being properly converted and regulated.
• Electrical Connections: The technician will inspect all wiring and electrical connections to ensure they are secure and not showing signs of wear, corrosion, or overheating.

6. Testing the Pump (if applicable):

• Pump Functionality Check: Some solar geyser systems use a pump to circulate the heat transfer fluid. The technician ensures the pump is operating correctly and not making unusual noises.
• Pump Maintenance: If needed, the technician may lubricate or replace the pump components to ensure optimal performance.

7. Replacing Faulty Parts:

• Component Replacement: If any part of the system is found to be defective, such as a malfunctioning thermostat, broken solar panel, damaged pump, or corroded tank, the technician will replace or repair the part.
• Ensuring Compatibility: The technician ensures any replacement parts are compatible with the existing system for optimal performance.

8. System Testing and Calibration:

• System Startup and Testing: After repairs, the technician will start the system and test it to ensure everything is functioning correctly.
• Temperature Regulation: The technician checks the water temperature to ensure that it’s reaching the desired level.
• Leak Tests: The technician ensures that no leaks remain after the repairs.
• Pressure Test: Ensures the system’s pressure is at the correct level to prevent damage or inefficient operation.

9. Client Education:

• Proper System Use and Maintenance Tips: The technician may give the homeowner or business owner tips on how to maintain the solar geyser, how to detect common problems, and how to optimize energy efficiency.
• Guidance on Troubleshooting Minor Issues: The technician might offer advice on how to address simple issues, like resetting the system, checking the thermostat, or monitoring water pressure.

10. Final Documentation:

• Repair Report: The technician documents the work done, including parts replaced, the issues fixed, and any ongoing maintenance recommendations.
• Warranty and Service Recommendations: The technician may provide information on warranty coverage for the new parts or recommend future service visits based on the system’s age or condition.

These tasks vary depending on the specific model of the solar geyser, the severity of the issue, and the type of system (e.g., direct or indirect circulation), but these are the general steps a technician will follow during a repair job.