False rain readings at 2300

[weather1967]

Hello all .
This days i observed suddenly false rain data in my 2300 !!!!!!
little 0,5 mm about ,i have wired conection (cable) but i observed
false rain without clouds in the sky ,this i observe it 2 times in 3
days,i put a piece heavy aluminium over to tipping bucket for it is
stable ,but the other day i observe it again the same false rain .At
problem it is not from tipping bucket .
I am little confused because i use wired conection and not wireless
for it is from interferences .

I listen for a small capacitor 4,7 nF
i will try to put a small capacitor 4,7 nF parallel to reed swich but in the remote out thermo -hygro at rain position, for to see if there is
any differents ,but i do not think because i use wired mode .
anyway we must to experiment for to we found the solution.


Any suggestions ?

Thank you