Latching relay rant..

[mpm2433]

First thanks for the help and advice on solving my water pump issue. I removed and replaced the latching relay per advice from this site.

Installed new relay nothing? Did the pump fail? Hooked power directly nothing! Getting the pump out was a pain! took it to the bench, nothing? Took the motor cover off the pump and found the positive lead had come loose. it appeared to be taped with a zip tie to prevent it from pulling through the cover. Repaired it and added blade connectors.

Took it back to the coach hooked it up for a test. Nothing! All this brings me to my rant! The factory wiring was crap! Splices wrong color wire ect. The 12v hot going to the relay had a red wire crimped in and cut. The exposed end was hot! Upline was a T tap with the hot for the water pump. The T tap was dead!

I cut it all out, rewired with the correct color wire and used heat shrink connectors. Works fine now. The latching relay is holding. Rant over!

[wa8yxm]

Regarding the "T" tap.. A lot of folks use a type of connector made popular by 3-M called a "Scotch Lock" it is designed to clamp over a wire and let you "Tap" in with another wire.

I had one power lead which I clamped the wires together using not one but FOUR of those connectors in line. So I had a 400% connection per the maker.. Only they all 4 failed.

The replacement involved a soldering gun, solder and insulation stuff. It's not goign to fail again. and has not.