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Author Topic: Solar thermal not circulating  (Read 77 times)
chris wills
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Posts: 42

« on: May 15, 2019, 01:04:56 PM »

We have a solar thermal system, 12 thermomax tubes into a cylinder, for our hot water only, backed up with an immersion heater.
It has stopped working over the last few weeks, the water does not circulate.
The pump is fine, no issues with that, is there some sort of air valve on the tubes that maybe causing a lock of some sorts?
Pressure is fine.
Any first thoughts, I suspect a blockage somewhere.
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