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solar panels make noise 24/7

  • 12-08-2019 10:44pm
    #1
    Registered Users Posts: 116 ✭✭ Fresh2000


    Hello,

    I just moved in to new house and it has solar panels. There is controlling unit next to my bedroom and the system makes noise 24/7. I went to check with my neighbors and it is completely quite in their houses. Some of them told me that most probably glycol needs to be top up.

    Is that reasonable assumption? Did anyone had similar issue? adn is that expensive to do?

    Thanks


Comments

  • Registered Users Posts: 1,627 ✭✭✭ quentingargan


    What sort of noise? Is this solar thermal (hot water) or solar PV (electricity). A photo of the offending unit would help. I assume thermal, but the fact that you have the noise 24/7 makes me wonder if it is an electrical install with a contactor as a firefighter safety switch


  • Registered Users Posts: 116 ✭✭ Fresh2000


    What sort of noise? Is this solar thermal (hot water) or solar PV (electricity). A photo of the offending unit would help. I assume thermal, but the fact that you have the noise 24/7 makes me wonder if it is an electrical install with a contactor as a firefighter safety switch

    the noise is like pump is working all the time, not sure what I should photo though, it is just water tank with some additional things on the side.


  • Registered Users Posts: 1,627 ✭✭✭ quentingargan


    Fresh2000 wrote: »
    the noise is like pump is working all the time, not sure what I should photo though, it is just water tank with some additional things on the side.
    Afraid you need a solar thermal installer familiar with that model of controller. It seems to either have a faulty probe telling it that the panel is hot, or the water is cold, or some settings wrong (e.g. the anti-freeze setting)


  • Registered Users Posts: 116 ✭✭ Fresh2000


    Afraid you need a solar thermal installer familiar with that model of controller. It seems to either have a faulty probe telling it that the panel is hot, or the water is cold, or some settings wrong (e.g. the anti-freeze setting)

    Thanks to your replies I started researching more and I found out I had Steca TR0301 controller, I have found manual and the side switch for operating setting was set to ON. As far as I understand it should be in position AUTO. After I have switched to auto pump stopped and this beautiful silence happened.

    My wife and 3 month old child are so happy. I hope I did the right move to set it to AUTO.

    Thanks a lot for all tips.


  • Registered Users Posts: 1,627 ✭✭✭ quentingargan


    That's great. Well done sorting that. On auto, the pump should run intermittently during the day, depending on its settings. Usually it comes on when the panel is about 6 degrees hotter than the cylinder. The installer must have switched it on for testing and forgot to switch it off again...


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