Fan in fuse panel constantly running...

[Tacswa3]

When hooked to shore power, the fan in the fuse/breaker box immediately comes on and remains on. Is this normal?

[Tacswa3]

Thanks guys. The TT is brand new and I've plugged it in here and there at home for the past week. Today its had the opportunity to be plugged in the longest its ever been (at least since I've had it). I just went out and unplugged it after 6-7 hours and the fan was not running. Does that mean the inverter finished charging the battery?

I've been meaning to disconnect the battery and put a trickle charge on it. Its brand new, but that doesn't mean anything.

[GaryWT]

Mine runs all the time and the more lights I turn on the louder it gets.

[Golden_HVAC]

Not typical.

But if the battery is really low voltage, then it could be happening.

I normally do not have the fan on my inverter/charger run at all, because I charge from the solar panels, and the shore charger does not run very often.

Do you keep the RV plugged in all the time? Or is it stored someplace where the battery can get low. If the battery is say 11.5 volts or less, then the charger will work at full capacity for a couple of hours, heat up and turn on the fan.

Also check the battery water level. If the level is really low on one of the cells, then it might be shorted, and you might have a not charged reading of say 10.2 volts. This will also cause the charger to run at 100% for a time, and turn on the fan.

If it is low on water, only add distilled water to the battery, and might as well unplug the RV to stop the battery from overheating before it is fixed.

Fred.

[MrWizard]

Yes..how much it runs depends on which brand and model converter/charger is installed, and the condition of your batteries

The converter, located behind the fuses, makes the DC power used to charge your batteries and supply ALL your 12v needs (lights, water pump, control power for fridge etc..) while you are plugged into shore power at the campground