Fan won't work with power converter

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  #1  
Old 04-25-20, 01:23 PM
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Fan won't work with power converter

I purchased a 16" fan and want to install it in my camper. Rather than run the generator each time I want to use it, I would like to run it off of my 1000 watt power converter. The converter changes 12v dc to 120 v AC. I run other equipment on this converter and they all work, like TV, DVD player, Soundbar etc. Even with all these equipment running at the same time, I am barely using 200 watts. This means I should have plenty of power to also run the fan which is rated at 60 watts. Will a bigger more powerful converter run this fan ? I disconnected all the loads from the converter and tried to only run the fan. It did not work. Maybe the converter does not produce enough current to run the fan's motor ? Thanks for any help.
 
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Old 04-25-20, 01:32 PM
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Current is the wattage rating. You should have plenty of current unless your battery is dead.
Tell us more about the setup.
The fan works on normal power?
 
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Old 04-25-20, 01:55 PM
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Yes, the fan is brand new and work if I connect it to wall AC or even when I run the generator in the camper. My setup is this : solar panel on the roof connected to house battery. 12v dc from battery goes to converter. This is how I get my AC power without running the generator.
 
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Old 04-25-20, 02:45 PM
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It's not a current issue. It may be the type of wave that the inverter is delivering.
Most things run with a sine wave as that is what the power company delivers.
The strange thing is that items like fans aren't usually affected by the type of power.
 
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Old 04-25-20, 03:39 PM
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Thank you Do you think a specific inverter delivering the same sine wave as the power company can solve this issue ? If so, what specific information should I be looking for when choosing another inverter ?
 
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Old 04-25-20, 04:43 PM
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Can you post the model of your inverter?
 
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Old 04-25-20, 04:55 PM
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I'll have to get back with you as it is in the camper. Please note it is marked clearly as a "converter" not as an "inverter" But I've been getting AC power from it since my TV etc works fine with it. I do know the difference between the two. I don't understand how this " converter" can power equipment requiring AC power. Do you think if I buy an "inverter", my fan issue can be solved ?
 
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Old 04-25-20, 05:27 PM
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Sounds weird. I will say that many modern electronics will run on 120volts DC. A shaded pole motor definitely will not!
 
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Old 04-25-20, 09:40 PM
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I've never heard of a 12vDC to a 120vDC converter.
 
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Old 04-26-20, 05:31 AM
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you need to post more info of fan model and what converter or inverter you have. That or any fan should run..

I have in my camper a 1100 watt inverter. I plug the camper into said converter and run everything but the ac.

two box fans, coffee maker, micro wave, etc etc..
 
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Old 04-27-20, 08:59 AM
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Is the fan polarized? IE the plug has one blade larger than the other on the fan? If so polarity might be wrong. IE hot and neutral switched at the inverter/converter.
You did ground the inverter/converter ?
 
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Old 04-27-20, 10:01 AM
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There is no such thing as polarity in AC circuits.
 
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Old 04-27-20, 02:26 PM
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Polarized plugs are very common. Chances are if you have anything with a two prong plug... it's polarized. Just like Drangd said. One blade on the plug is wider than the other and if you look at the outlets in your home you'll see that one slot is longer than the other. One side of the plug then is hot while the other is neutral.
 
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Old 04-27-20, 03:54 PM
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The plug is polarized so the neutral is on unswitched side of any power within the device. The unit will function no matter which way the power is connected. It does not see any sort of 'polarization'.
 
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Old 04-27-20, 04:17 PM
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Plug polarity is absolutely NOT a problem here.
 
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Old 04-27-20, 07:40 PM
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The fan has two prongs one is larger than the other. Made in China ( surprise surprise), 120VAC 55 Watt 60hz
I am definitely using a power converter not an inverter. I will plug the fan into one that is clearly marked 300 Watt inverter and see if it runs. I will post back.
 
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Old 04-28-20, 12:26 PM
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120VAC 55 Watt 60hz
This is on the converter ? 55 watts ??

Are you sure you aren't using a 120v to 12vdc convertor backwards ?
 
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Old 04-29-20, 03:55 PM
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The 55 watt is on the fan. The converter is clearly marked 750 watt Converter. I plugged the fan into another unit clearly marked 300 watt INVERTER ( changes DC to AC) Still no go !! I turned the inverter ON and measured the AC voltage at the output. It is giving me 104 VAC. Yes, this is a bit below the 110 required, but I believe the fan should run with that. Again, I tested the fan by connecting it to the wall and it worked like a charm. What am I missing here ? Any genius can figure this out ?
 
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Old 04-29-20, 04:02 PM
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Make and model of fan? of converter?
 
  #20  
Old 04-30-20, 04:38 PM
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The answer is in post #4.

Your "converter" is not generating a true sine wave. The fan motor, think cheaply made, requires a true sine wave to function. It's not a function of current or voltage.

Your TV, DVD Player, etc. don't care as much about a true sine wave. Their power supplies can usually handle a wide range of voltages and frequencies - before converting it down to DC to run the electronics.

Running the motor can cause it to run hotter than normal.
 
  #21  
Old 04-30-20, 07:59 PM
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Dude your leaving out vital info so we can help you..

This is plain rude

? Any genius can figure this out ?
Now tell us make and model of said converter..

A converter ....convert the voltage from alternating current (AC) to direct current (DC).

**** So your ac fan will not run on dc current.. So we need to know what you got... very simple..

Inverter.....
Electrical devices that convert the voltage from direct current (DC) to alternating current (AC).

Ahh is your fan AC???

Whats so hard about posting the info asked of you..

Im going to close this thread soon anyway because it has gone nowhere in 20 posts..
 
 

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