Quaternary pump pressure reading wrong

Quaternary pump showed a wrong, non-responsive pressure reading even if no flow, how to fix it? It was used about 1.5 years ago without this problem.  Thanks.

Parents Reply
  • I don't think sensor problem.

    Follow the link i shared in above reply.

    You have to isolate one by one to know where is problem.

    Like without column, pressure there or not.

    Purge valve is open then pressure is there or not.

    In the link, i shared in my prevoius reply, all steps are mentioned there.

    If opening purge valve pressure down then replace frit of purge valve.

    Follow all steps, to resolve this..

    If any doubt then let us know.

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