People often ask me, “Do I really need to service my solar geyser?” A service on a solar geyser is mainly preventative maintenance, if done on a regular basis. I am going to list what we do and show some photographs of systems that were not serviced regularly.
- The tank needs to be flushed to remove a build-up of water sediment and sludge. The condition of the tank is looked for decay, inside and outside.
- An Indirect system can need the glycol refilled because there is loss from evaporation.
- A direct system needs the water to be flushed to cleanse the collector from any sediment build up. From the picture below one can see the dirty water being released.
- The thermostat setting is checked that it is set at a maximum of sixty degrees, in our opinion it lengthens the life span of thermostat if not set on the maximum. If the thermostat is malfunctioning or damaged, it is replaced. The picture below, one can see there was an electrical short that damaged the thermostat that had to be replaced.
- The Element connection is checked, that it is power at the element and working properly. It will be replaced if damaged or not working.
- The Flange gasket is replaced if damaged. From this picture one can see the flange gasket was torn and this will cause water leaks.
- Excessive dust build up on the collector is removed.
- Lagging is checked for perishing from the UV rays of the sun that damages the lagging. The damaged lagging will be replaced.
- The timer is checked to see if it working properly. The settings are checked. To ensure the minimum water temperature is not too high. Ideally the timer should run between two hours and a maximum of four hours per day.
- The solar geyser is checked for any damage or potential problems. From the photograph below, one can see water was leaking onto the electrical element, that we noticed during a service.
- Brackets are checked to ensure the tank is secure, that there are no screws that are badly rusted or broken.
- The anode by design are sacrificial to prevent the element from being damaged from the chemicals in the water. The anodes are checked for wear & tear and replaced if required.
- Electrical wires are checked for any lose connections or if any terminals are badly rusted that could cause a problem. The below controller box that had an electrical short and burnt out the PC board in the first picture. The second photograph is an example of rusted terminals that cause a communication error to the controller.
- There is natural wear & tear on the valves, this is checked to see if there is any malfunctioning of a valve. Valves & shut off valves are checked for any leaks and tighten if required. Broken & damaged valves are replaced if necessary.
Why does one service a solar geyser?
- Solar geysers have working parts and if it is not serviced yearly, the geyser could possibly stop working, a valve leaks or gets stuck open.
- Preventative maintenance always costs less than emergency call outs and repairs.
- Don’t you want to prevent the inconvenience caused from a solar geyser that is not working due to a failure that could have been prevented?
- Preventative maintenance allows you to have the full financial benefit from your solar geyser all year round.