Re: in-line heater test?
My previous look at the pcb was, I admit, less thorough that it could have been. 😳
This time I removed all the wires and removed the pcb from the plastic housing and sure enough there is a burnt out terminal

This is right under the NAIS JS1-12V AJS1311 10A 125V~ Relay 😀

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Would it be possible to re-post the pictures please: I think I have the same problem
Richard D