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mchero's avatar
mchero
Explorer
Feb 27, 2020

Here we go again yet another Trombetta "Big Boy" failure!

I have just about had it with these P.O.S. Trombetta isolator solenoids. My 1st class A diesel, a 93 Pace Arrow was not charging the house batteries while driving down the road. Found the Trombetta ...
Chum_lee's avatar
Chum_lee
Explorer
Feb 28, 2020
Just a question. Where does this 300 amps (charging) come from for continuous use? Very few automotive type alternators will produce 300 amps, (@14 volts) continuous, for battery charging purposes. IME, when solenoids/relays regularly fail, it's because they get too hot. That can be a result of small wire size on the signal circuit, or, too much resistance on the main load (switched/charging) circuit.

When you say the solenoid is warm, . . . . . how warm is it? Too hot to touch?

Chum lee

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