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    Laing DDC pump repair PCB mod

    After replaced the PCB of DDC 18W, the ampere increased from 1.5A to 1.8A, the flow rate increased about 20% (using stock top) The audible noise is also increased:eek: it should be caused by the increased rotation speed:cool: The IC leg spacing is only 0.33mm, drag soldering is the only...
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