Just an update to where i stand on this. Basically the issue remains. I have tested the reed switch and it works fine. I tested the 100 ohm resistor on the circuit board that contains the reed and it reads 100 Ohms.
I did disconnect the 5v and B wires that were connected to the data counter thinking i would get the same continuity results when testing the reed but the Multi-meter stays at 1 even when i pass the magnet over the reed. I’m at a loss now to what to do next.
Rainwise are looking for 32 dollars to ship the reed circuit board to Ireland but i’m not entirely sure thats where the problem lays.
Any further advice would be much appreciated