11-02-2021, 05:27 PM
Mike,
A 91 probably did not come from the factory with that big blue isolation diode that Hank pictured. My 95 did not have it. Back then they used the merge solenoid to combine the battery banks. On my 95, the merge solenoid was activated by the merge switch, and surprise to me anytime the engine was running.
You are right if the house batteries are discharging, then none of this applies. So let’s do some diagnostics on the house system. Let’s check to make sure the charger is ON. It can be disabled from the remote. If it is ON, then run the following test. Unplug the coach from the 50A. Measure the voltage of the house bank at the batteries with a voltmeter. Now plug it in, and repeat. You should see a noticeable rise in the voltage with the coach plugged in. If you do not, then we can walk through other diagnostics.
A 91 probably did not come from the factory with that big blue isolation diode that Hank pictured. My 95 did not have it. Back then they used the merge solenoid to combine the battery banks. On my 95, the merge solenoid was activated by the merge switch, and surprise to me anytime the engine was running.
You are right if the house batteries are discharging, then none of this applies. So let’s do some diagnostics on the house system. Let’s check to make sure the charger is ON. It can be disabled from the remote. If it is ON, then run the following test. Unplug the coach from the 50A. Measure the voltage of the house bank at the batteries with a voltmeter. Now plug it in, and repeat. You should see a noticeable rise in the voltage with the coach plugged in. If you do not, then we can walk through other diagnostics.
Richard and Rhonda Entrekin
95 Newell, 390 Ex caretaker
99 Newell, 512 Ex caretaker
07 Prevost Marathon, 1025
Maverick Hybrid Toad
Inverness, FL (when we're home
)