Engine alternator only charges engine battery
We have a 2001 Itasca Suncruiser Ford F53. Has an engine battery and (2)12 volt batteries. When plugged into shore power or when the generator is running, the 2 12 volts are being charged. But when ...
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If the new solenoid looks like the one in my picture on the previous page, the small wire to the center terminal is supposed to have voltage (from the chassis battery) when the ignition is on. Not necessary to start the engine, just turn the ignition on and check for chassis battery voltage at that terminal. No voltage means that there is a problem with the circuit between the ignition switch and the center terminal.
It is my understanding that the Boost switch on the dash is there so that the engine can be started from the house batteries if the chassis battery is dead. When the Boost switch is pressed, it sends voltage from the house batteries to activate the solenoid. If you have someone hold the Boost switch, you should find the house battery voltage at the center terminal, as you say that the Boost switch does work.
I'm not sure of this, but I seem to remember being told that the boost switch is a double pole switch with three wires, one from the house battery, one from the ignition switch (chassis battery voltage when the ignition switch is on) and the third going to the center terminal on the solenoid. The Boost switch is spring loaded so that the circuit between the ignition switch and the solenoid is normally connected. If this is correct (check with Winnebago) then your problem could be with the Boost switch or the wiring between the ignition switch and the boost switch.
I have found Winnebago customer service to be very helpful. (800) 537-1885
It is my understanding that the Boost switch on the dash is there so that the engine can be started from the house batteries if the chassis battery is dead. When the Boost switch is pressed, it sends voltage from the house batteries to activate the solenoid. If you have someone hold the Boost switch, you should find the house battery voltage at the center terminal, as you say that the Boost switch does work.
I'm not sure of this, but I seem to remember being told that the boost switch is a double pole switch with three wires, one from the house battery, one from the ignition switch (chassis battery voltage when the ignition switch is on) and the third going to the center terminal on the solenoid. The Boost switch is spring loaded so that the circuit between the ignition switch and the solenoid is normally connected. If this is correct (check with Winnebago) then your problem could be with the Boost switch or the wiring between the ignition switch and the boost switch.
I have found Winnebago customer service to be very helpful. (800) 537-1885
