Furnace will not run after reverse polarity
Several months ago a friend de-winterized their trailer but he re-installed the battery backwards in reverse polarity. We were camping together and kept smelling a rotten egg smell. Thought it was s...
Forum Discussion
When the battery terminals are connected in REVERSE POLARITY it will blow two fuses in the 12vDC Power Distribution Panel labeled REVERSE POLARITY. It will also blow an INLINE FUSE that is mounted real close to the Battery terminal. Sometimes this is a circuit breaker...
A quick thing to remember is that both the ON-BOARD Converter/charger unit and the battery both feed the 12VDC Power Distribution Panel so you can turn on your ceiling lights and some other other 12VDC items when you are on shore power or just running off the battery. If you are NOT able to turn on your Ceiling lights now when running only on the battery this is an indication you have a blown fuse or bad cable connection between the 12VDC Power Distribution Panel and the Battery.
Another way to check this is measure the battery terminals when you are NOT connected to shore power and if fully charged it will read 12.6-7VDC across the battery terminals. Then go plug the trailer into shore power and read the battery terminals again. With Shore Power ON it should read 13.6VDC.. If it doesn't read the 13.6VDC across the battery terminals then this is indicating there is a disconnect between the battery terminals and the 12VDC Distribution Panel.
If you replaced these fuses before changing the battery connections to the correct normal terminals then you have blown the fuses again. Need to correct the battery terminals first then change the blown fuses.
Confirm these fuses are good
Roy Ken
A quick thing to remember is that both the ON-BOARD Converter/charger unit and the battery both feed the 12VDC Power Distribution Panel so you can turn on your ceiling lights and some other other 12VDC items when you are on shore power or just running off the battery. If you are NOT able to turn on your Ceiling lights now when running only on the battery this is an indication you have a blown fuse or bad cable connection between the 12VDC Power Distribution Panel and the Battery.
Another way to check this is measure the battery terminals when you are NOT connected to shore power and if fully charged it will read 12.6-7VDC across the battery terminals. Then go plug the trailer into shore power and read the battery terminals again. With Shore Power ON it should read 13.6VDC.. If it doesn't read the 13.6VDC across the battery terminals then this is indicating there is a disconnect between the battery terminals and the 12VDC Distribution Panel.
If you replaced these fuses before changing the battery connections to the correct normal terminals then you have blown the fuses again. Need to correct the battery terminals first then change the blown fuses.
Confirm these fuses are good
Roy Ken
