Ensure Your Solar Hot Water System Lasts
A solar hot water system is a long-term investment, designed to serve you for 20 to 30 years. However, neglecting maintenance can drastically reduce its lifespan, especially in Australia’s challenging climate. Regular servicing is the key to avoiding premature failures and costly replacements.
These systems are not maintenance-free. Over time, parts wear down and may need repairs or replacements to keep the system efficient and reliable.

How much maintenance do solar hot water systems need?
With regular care, solar hot water systems can last over 20 years. Some units installed in the 1970s and 1980s are still working today. Compared to traditional water heaters, which often last only half as long, solar systems provide long-term value when maintained properly.
Why Use a Professional for Maintenance?
Solar hot water systems combine electrical and plumbing components, which require specific expertise. DIY repairs can lead to further damage or safety issues. Licensed technicians ensure the system stays efficient, safe, and reliable.
Australia’s weather can be tough on solar hot water systems, affecting their performance and lifespan.
Key challenges include:
- Heat
- Extended sun exposure
- Dust build-up
- Acid rain
- Hail
- Storms and torrents
- Heavy winds
Routine inspections and timely repairs help protect the system from these issues, keeping it running efficiently.
Maintenance Recommendations
Most manufacturers suggest a professional inspection every three years. Setting aside 2–5% of the system’s installation cost for annual maintenance helps avoid expensive repairs in the future.
Choosing licensed experts ensures your solar hot water system stays in top condition and performs reliably for decades.

Common issues for maintenance inspection
Solar hot water system professionals perform inspections to address a range of potential issues that can affect system efficiency and longevity. These checks are tailored to the specific components of your system and include:
1. Solar Collectors and Panels
Solar PV collectors often face issues like shading, dirt build-up, cracks, and seal deterioration. Shading from vegetation reduces solar absorption, impacting system performance. Dust and particulate accumulation, especially in arid regions, can further block sunlight.
Cracks in glazing and worn seals may lead to physical damage and reduced efficiency. Cleaning and inspecting these components ensure optimal energy collection.
2. Plumbing and Insulation
Plumbing issues such as leaks, loose connections, and poor-quality installations can lead to corrosion and moisture damage. Technicians check for signs of wear, inspect seals, and ensure all connections are secure.
Insulation on wiring, ducts, and pipes is also inspected, as degradation can reduce efficiency. Proper insulation prevents heat loss and protects against damage from weather or animals.
3. Corrosion and Scaling
Corrosion and scaling are significant threats to system efficiency. Hard water can cause mineral deposits, which reduce heat transfer and clog pipes. Adding water softeners can mitigate scaling, but compatibility with the system must be assessed.
Corrosion, often caused by electrolysis between metals, weakens components. Using non-metallic materials such as plastic, glass-lined tanks, or corrosion-resistant metals like copper and brass helps address this issue.
4. Preventive Measures
Technicians also examine areas of penetration, such as flashings and sealants, and ensure pressure relief valves function correctly. These checks prevent leaks, structural damage, and operational failures.
Professional Servicing
Engaging a licensed solar hot water professional every three years ensures the system remains in excellent condition. Budgeting for these inspections is a small investment compared to the cost of repairs or replacements due to neglect.
A well-maintained solar hot water system delivers efficiency and reliability for years, making professional inspections a crucial part of its care.

Contact Hogan Hot Water Today!
At Hogan Hot Water, we specialise in solar hot water systems, serving Newcastle, Lake Macquarie, and the Central Coast. Whether it’s installation, servicing, or repairs, we ensure your system stays efficient and reliable. Contact us for expert assistance.