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pcb issues
Autotrax was a free software application that ran on DOS on an IBM or compatible PC. It was designed by Protel Systems (now Altium), and was one of the first professional printed circuit board CAD applications available for personal computers. It is a freeware download and also available in a stripped down version marketed as Easytrax.
Hi,
Have a Valliant Ecotec Plus 637 system boiler that is showing no error codes and S.0 (no demand for heat), but it is not heating.
Have checked that it is receiving switched 240V heat demand from controller into PCB, so believe it's just a boiler issue.
Boiler was working fine up until...
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