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Solar Maintenance is KEY

A properly installed and sized solar hot water heating system should be, and generally is, quite reliable and requires minimal homeowner attention.

However, it is in your best interest to know enough to detect a problem or signs of poor performance: 

  • If you can’t recall the last service/maintenance check on your solar system, it is probably due.

  • It is recommended to have a qualified person perform routine maintenance on your solar system, and to answer any questions you may have.  This establishes a system baseline for you.

  • A routine service call typically involves a check of the fluid condition, system pressure, the controller, circulator, sensors, expansion tank and overall glycol loop condition.  The majority of solar systems have a closed loop and are pressurized.  There are also drain-back systems that have their own properties.

  • It is a good idea to periodically check the system operation at a glance to observe if the solar system is running at the appropriate time.  For instance, observe that the circulator is not running at night or when the sun is past the collector array.  Also make sure that the circulators are switched on during solar gain situations.

  • The pressure on the solar glycol loop should be close to where it was left at the last service call. 

  • The recommended pressure is always noted on our service tags, along with component change history, date of the solar service and suggested follow-up date, along with our phone number.

  • Note if circulators are running smoothly. There should be no sounds of air in  the loop.  The heat transfer across solar loop should be verified.

  • The tank temperatures will vary, but should increase in favorable conditions.

  • Weather tight integrity of the roof and exterior insulation should be taken into consideration and discussed, but these repairs are not included as part of a basic service call.

  • If there is no water filtering system at your home, it is highly recommended that at minimum, there be a dirt and rust water filter installed on the cold water feed line into your solar tank. This helps prevent the heat exchangers from becoming plugged with sediment which will affect their efficiency.

Please contact us if you would like to set up a service call. We service and maintain any make or style of solar hot water system!