I've got a goldline/aquarite chlorinator that was working fine until recently the flow sensor seems to have failed. I've checked it out, appears clean, no breaks in the wire I can find.

I've read you can cheat by installing a shorted phone cord in its place since my chloronator is on the same circuit as my pump. Four wires in the connector, I assume one pair passes AC to an inductor and another receives? Is this theory of shorting one of the pairs sound, and if so; any idea which pair gets shorted for sense?