Because there are no moving parts, your HRV Solar Solution requires very little in the way of maintenance. We recommend a service every 2 years to ensure your Solar system is working as it should. Depending on the nature of your area and the orientation of your solar panels, they may require regular cleaning. Panels should be cleaned in the early morning or late evening when they are not hot. Use a normal garden hose to simulate rain, do not use pressurised water blasters. Call us 0800 HRV 123