If you have installed a solar hot water system, you need to know about the routine maintenance that it requires to run efficiently. There can be certain repairs that need to be done so you need to watch out for the warning signs when certain components need to be replaced. Other risk factors that can undermine the efficiency of a solar hot water system are scaling, freezing and corrosion.

When you are first purchasing the solar heater, you need to ask the supplier for solar hot water Ballarat regarding basic maintenance it requires and when you should expect to carry out an in depth maintenance routine. There are basic inspections that you as a home owner can do so this is something you need to be informed of from the beginning. However, there are maintenance tasks that will need to be undertaken by a qualified technician. When you ask a technician to inspect the system, make sure you ask for a written cost estimate before you get their services. You can even get an estimate from more than one person to get an idea of the cost. A reliable professional will be able to recommend whether it is more feasible to repair the unit or replace it altogether based on the cost involved.

You need to check for the shading of the collectors yearly as this is something that can significantly affect performance. There can be vegetation that has grown over time which can shade the collector or you may have added a new extension to the house which can all affect the amount of sunlight and the duration of sunlight that the collector receives. You should make sure that the collector is clean especially if you are living in a dry dusty region. Another thing to watch out for is whether the seals of the collector are in good condition and whether the plastic glazing has yellowed considerably. You need to check for leaks in the pipe connections and the seals around the connections. The wiring connections should be sealed as well.

If there is damage to the insulation that covers the pipes and ducts, the insulation has to be redone. Sometimes the support structures for the collectors may need inspection as nuts and bolts can loosen. The dampers of the heating system should open and close properly if they are performing well. To check whether the distribution pumps are working, you can listen to see whether they start operating when the sun shines on the collectors in the middle of morning. If you can’t hear any sound that confirms that the pump is in operation, you will need to contact a technician to look into the issue. If your solar water heating system has antifreeze solutions, you need to replace them regularly. This should also be done by a technician. Storage tanks should be checked for leaks, corrosion or cracks. Some preventative treatments you can do to avoid scaling are to use water softeners or a mildly acidic solution like vinegar. In systems that use water for heat transfer fluid, you can see scaling in the collector and piping.