SOL C24L not working - Error code 20 (flashing)
My SOL C24L unit has stopped working after the summer and ends up showing a flashing "20" no matter what setting I set it to, even after powering it off and on again.
What problem does this code mean and how can it be fixed?
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It is galling when you search for a problem on the internet and all you can find is one unanswered post from years ago.
I think the problem is low water, but I could be wrong. there is at least half a metre of head above the filter which I have cleaned, so I think it must be the sensor. Must be open circuit, I will unplug, clean and reassemble, then report back.
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John,
In the absence of any help I used lung power to check the tubes and realised there was a lot of resistance. I went back to basics and took apart, cleaned everything up and reassembled. The problem cleared and so I think the error may have indicated a blockage or something.
Anyway, good luck with your system.
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Much the same, I blew through, then blocking the non-return valve and injecting water managed to get a siphon working (my greenhouse is below the level in the water butt). No change.
I unplugged the level sensor and cleaned both probes, upon replugging it all burst to life. Unfortunately the retaining screw collar is now at the bottom of a full water butt.
So, in my case the problem was the controller thinking there was no water rather than a blockage, the symptoms are the same.
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