SHURFLO94-801-05 Model 4048 Repair Parts - Switch Assembly, 55 Psi

This part fits the Shurflo 12V pump but does not accept normal solar charging of 13.8V and fails fatally after trying to run while bulk charging. Part works indefinitely at less than 13V. Design problem or user problem?

It’s exactly what I ordered them the micro switch was bad and mine and I put it on my water pump and it works beautifully and there’s no other what else can I say

just like it was intended for

Switch has failed not working after less than 1 month