May 2026 | Maintenance | By Solar Water Heater UAE
A solar water heater is a long-term investment — Ariston systems are designed to last 15–20 years. But like any mechanical or thermal system, they perform best with regular maintenance. In Dubai's climate, with its intense heat, dust, and occasional humidity, annual servicing is especially important to protect your investment and maintain peak efficiency.
This guide covers everything you need to know about maintaining your solar water heater — from what you can check yourself to what needs a certified technician.
Why Maintenance Matters
Neglected solar water heaters lose efficiency over time. Common issues in Dubai and the UAE include:
- Scale buildup inside the tank from Dubai's hard water, reducing heat transfer efficiency
- Dust on collectors reducing solar absorption — Dubai's desert dust can reduce performance by up to 20–30% if panels are not cleaned regularly
- Degraded anode rod leading to tank corrosion if not replaced on schedule
- Faulty pressure relief valve which is a safety risk if left unchecked
- Pipe insulation damage from UV exposure on rooftop pipework
Annual Professional Service Checklist
Our technicians cover the following during every annual maintenance visit:
1. Solar Collector Inspection & Cleaning
Collectors are wiped clean of dust, bird droppings, and mineral deposits. The TINOX coating is inspected for any damage. Clean collectors can improve performance by 15–25% compared to dusty ones.
2. Anode Rod Check & Replacement
The sacrificial magnesium anode rod inside the tank protects it from corrosion by attracting corrosive elements. It degrades over time and must be inspected annually and replaced every 3–5 years depending on water quality. A depleted anode rod is one of the most common causes of premature tank failure.
3. Pressure & Temperature Relief Valve Test
The P&T relief valve is a critical safety component. Our technician will manually test it to confirm it opens and closes correctly. A stuck or seized valve must be replaced immediately.
4. Pipe & Fitting Inspection
All visible pipework, fittings, and joints on the roof and at the tank connections are inspected for leaks, corrosion, or UV damage to insulation. Any deteriorated insulation is replaced to prevent heat loss.
5. Tank Flushing (Descaling)
In areas with hard water (common across Dubai and the UAE), scale accumulates inside the tank and on the heating element. Our team will descale the tank to restore heating efficiency and extend the tank's lifespan.
6. System Performance Test
After servicing, we run a full system performance check — measuring inlet and outlet temperatures, verifying the backup element operation, and confirming the anti-scald valve setting.
What You Can Do Yourself (Between Services)
As a homeowner or building manager, there are simple checks you can do every 3 months:
- Check the hot water temperature at your tap — a sudden drop in temperature may indicate a collector blockage or failed backup element
- Visually inspect the roof panels — heavy dust accumulation after a sandstorm should be cleaned off with water (avoid harsh chemicals)
- Check for visible leaks at the tank base or pipe connections
- Listen for unusual sounds — clicking, banging, or humming from the tank can indicate scale buildup or valve issues
Annual Maintenance Contracts
Solar Water Heater UAE offers flexible annual maintenance contracts for residential and commercial systems across Dubai and the UAE. Our contracts include:
- One scheduled full service visit per year
- Priority emergency call-out response
- Discounted rates on parts and additional repairs
- Service report and performance log after each visit
An annual maintenance contract gives you peace of mind and protects your warranty.
Book Your Annual Service Today
Keep your solar water heater running at peak efficiency. Available across all UAE Emirates.
Book a Service Call +971 56 378 1613