Provided that there is a 10ºC difference between the temperature in the solar thermal panels and the temperature at the bottom of the cylinder, your solar thermal pump should operate unless one or more of the following scenarios occurs:
If none of the above scenarios have occurred and your solar thermal system is not working, please contact your engineer for further support.
The information provided here is advice only - if you are not happy to check your product, please contact a heating engineer to assist.
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