Hello all,
I've recently installed a fairly new Lister LPW3 replacing an old one of the same model that was beyond repair.
I've come to link up the Temp gauge and found that I have two spades on the temp sender, to be honest I can't recall whether my last one had two or not, but I've tried every combination I can conceive to try and get the Temp gauge to show something but no, nothing.
Now, my temp gauge was on the boat when I bought it and a quick Google has lead me to find an identical looking one here on Amazon, which leads me to believe it's a cheap pile of sh*te. But that gives you an idea for the wiring, one pos, one neg and one single sender cable. Also worth noting it seemed to work fine on my previous engine.
I've tried the sender cable on both spades of the sending unit and tried putting and earth cable on the opposing spade simultaneously, then tried a live lead from the ign. accessories and still nothing.
I checked the sender unit by putting a multimeter on the spades set to ohms and found it does appear to be working (although I didn't test it methodically, I just noted it was reading something after being run for 15-20mins and the number slowly decreased as I continued trying different wiring combos, testing again after each combo failed to work).
Is it likely that this sending unit just isn't compatible with this gauge? Am I missing some obvious wiring solution? (not an engineer myself if you haven't already guessed)
Could I save myself time and chin scratching by buying a new gauge and sending unit that I know will work together?
Any help would be grand!
Many thanks.
P.s I've already looked for some sign of a manufacturer on the sending unit and can't see anything but a long number that appears to be of no Google-able significance.
That number is: 1VT1 7AB327F 15