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LEARN HOW TO RUN 2 RV A/Cs ON A 30 AMP CONNECTION
by Nancy Evans
(Dennisville, NJ)
The inside lights only work when plugged in or on the generator. Batteries are new. Replace the battery isolator switch. What do I check next?
ANSWER Greetings Nancy thanks for submitting your question on our Ask An RV Question Page.
3. Check your house batteries to make sure that all connections are tight and clean. Also check to make sure that there are no other loose wires that are attached to the battery cables. Clean and tighten wires and cables as needed. Check the electrolyte level in all of your batteries. If they are low top them off with Distilled Water. Even though your batteries are new, you still need to do these checks.
4. Now check to see if the batteries are charged. If your RV has a monitor on it that shows actual battery voltage then look at the gauge. If your RV does not have a voltage gauge or it has dummy lights, you will need something like the Cen-Tech 7-Function Digital Multimeter to take the readings. With the RV engine and generator off and the RV unplugged from electric, you should have a voltage reading of approx 12.6 volts. If the reading is much lower than that, either the batteries are going bad or they are not receiving a proper charge. Now if you have a solar battery charger on your RV the voltage reading may be higher as the solar charger is applying a trickle charge.
5. Now we are going to check out the charging systems. First start the engine of the RV and then check the voltage at the house batteries either using the RVs built in voltage gauge or your voltage meter. The reading should be around 14.4 volts. Turn off the engine and run the generator; the voltage again should be around 14.4 volts. Now turn off the generator and plug the RV in to electric and check the voltage again it should be around 14.4 volts.
Comments for Our RV Interior Lights Only Work When We Are Plugged In Or Generator Is Running
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LEARN HOW TO RUN 2 RV A/Cs ON A 30 AMP CONNECTION
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