If you disconnect pin #2, house battery input, the big boy will NOT engage when on generator or shore power to charge the chassis batteries. When the ignition is turned ON, and the engine is running, big boy will engage thinking that the house batteries are completely dead.
If pin #3, ignition input is disconnected, big boy will engage on shore or generator power thinking that the chassis batteries are dead. But the big boy will not engage when the engine is running. However, if the generator is running, big boy will engage and alternator voltage will feed the house batteries.
Battery boost would still work if pin #2 OR pin #3 were disconnected. If BOTH were disconnected battery boost would NOT work.
If pin #8 battery disconnect switch input is disconnected, big boy would be disabled and never engage under any scenario.
BIG BOY SOLENOID TROUBLE SHOOTING
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in Technical Papers
Posted
If you disconnect pin #2, house battery input, the big boy will NOT engage when on generator or shore power to charge the chassis batteries. When the ignition is turned ON, and the engine is running, big boy will engage thinking that the house batteries are completely dead.
If pin #3, ignition input is disconnected, big boy will engage on shore or generator power thinking that the chassis batteries are dead. But the big boy will not engage when the engine is running. However, if the generator is running, big boy will engage and alternator voltage will feed the house batteries.
Battery boost would still work if pin #2 OR pin #3 were disconnected. If BOTH were disconnected battery boost would NOT work.
If pin #8 battery disconnect switch input is disconnected, big boy would be disabled and never engage under any scenario.