Quote:
Originally Posted by vicap
This morning the chassis battery was dead on my 2021 Tellaro 20kt. There wasn't enough juice in the house battery due to several days of rain/overcast skies not allowing solar panels to charge them. I plugged the RV to shore power & after a few minutes, was able to start the RV off the house batteries. A yellow check engine light is now on.
So my question is: would the house batteries drawdown drain the chassis battery?
Does a drained chassis battery automatically cause a check engine light to illuminate?
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If your check engine light is on I would suspect you could have a problem with the alternator that is supposed to charge the chassis battery. Even if the house batteries are drained, should not kill your chassis battery. If you can use a voltmeter, check the chassis battery while the engine is running and also while not running to see if there are different voltages (engine running voltage should be higher). I would also check your serpentine belt to make sure it is place. There have been some problems reported with these on some models due to Thor incorrectly routing a new belt with the under hood alternator models.
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