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Old 09-08-2015, 10:11 PM   #21
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I just double checked mine. Yes, from underneath looking up mine rotates counter-clockwise. With the filter removed I noticed the flap really swings open more. If it opened that much with the filter in place I wouldn't bother using a clothes pin to hold it open.

With the small metal cover plate that covers the wires to the switch removed the connections are accessible. You could put the meter on the switch terminal and confirm the polarity. Other than that I guess we're waiting to here Reace's verdict.

Ron
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Old 09-08-2015, 10:25 PM   #22
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I just double checked mine. Yes, from underneath looking up mine rotates counter-clockwise. With the filter removed I noticed the flap really swings open more. If it opened that much with the filter in place I wouldn't bother using a clothes pin to hold it open.

With the small metal cover plate that covers the wires to the switch removed the connections are accessible. You could put the meter on the switch terminal and confirm the polarity. Other than that I guess we're waiting to here Reace's verdict.

Ron
Ron

I already had that cover off so I just went out and checked it with the meter. If I touch the positive (red) meter wire to the live wire going to the switch and then touch the black meter wire to ground on the hood I'm getting the "-" reading but zero voltage on the meter so I'm guessing that the polarity is reversed, right?

Barry
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Old 09-09-2015, 02:19 AM   #23
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When I put my red meter lead on the black wire behind the switch and the other meter lead to a negative bus bar my meter shows no " - ". I can't imagine how yours could be reversed especially when the outlet you tested showed the correct polarity.

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Old 09-09-2015, 11:43 AM   #24
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Whoa, just noticed the no voltage. OK, on mine, the incoming power goes to the upper terminal on the fan switch and it is jumpered to the upper terminal on the fan light. With the red lead to it and the meter negative to ground I get a positive volt reading.

When you say " - " but with no volts, what terminal are connecting to?

And I know it's a real long shot, but any chance you could pull off the converter cover panel, 2 screws, and check the reverse polarity fuses and maybe do a polarity test with the positive lead to a fuse output terminal and the negative to the negative lug?

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Old 09-09-2015, 01:21 PM   #25
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Whoa, just noticed the no voltage. OK, on mine, the incoming power goes to the upper terminal on the fan switch and it is jumpered to the upper terminal on the fan light. With the red lead to it and the meter negative to ground I get a positive volt reading.

When you say " - " but with no volts, what terminal are connecting to?

And I know it's a real long shot, but any chance you could pull off the converter cover panel, 2 screws, and check the reverse polarity fuses and maybe do a polarity test with the positive lead to a fuse output terminal and the negative to the negative lug?

Ron
On mine the incoming power goes to the upper terminal of the fan switch and is then jumpered to the upper terminal of the light switch for the fan, same as yours. I put the red meter lead to the upper terminal of the fan switch and the black lead into a plug ground and got " - 0.00" on the meter.

I'm going to pull the fan itself and reverse the wires and see if that reverses the motor.

The response I got from Escape via e-mail was "maybe I'd done work on the hood and reversed the wires". I haven't done work on the hood but they seem to think that the wires could be reversed so I have nothing to loose. The visit to the mother in law is postponed until tomorrow so I won't be able to talk to Reace until then. Hopefully reversing the wires will work and I won't have to bug Reace.

The wires from the batteries are connected to the convertor in the correct polarity and all three of my 12 volt outlets show correct polarity.

Thanks for your help Ron.

Barry
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Old 09-09-2015, 01:27 PM   #26
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With the meter hooked up that way and reading " - 0.00 volts" do you get "- 12.** volts" when you turn the switch on?

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Old 09-09-2015, 05:28 PM   #27
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Hi Ron

So I pulled the fan and pulled the loose wiring down. The black power wire comes in and connects to the top terminal of the light switch which is jumpered to the top terminal of the fan switch. The black wire comes back out of the bottom terminal of the fan switch and goes to the fan. The white neutral wire comes out of the fan and is connected via a marrette to two other white wires.

Red meter probe connected to the top fan switch terminal and the black meter probe connected to the white wire at the marrette connection reads "- 14.63"

Black meter probe connected to the top fan switch terminal and the red meter probe connected to the white wire at the marrette connection reads "14.63" My solar panel is showing 14.7 volts as it's bulk charge at the moment.

Barry
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Old 09-09-2015, 05:39 PM   #28
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Well that pretty much takes the fan out of the problem. But those findings are a real puzzle. I can't imagine how the white ground wire could be positive.

Too bad there's no schematic. There are undoubtedly other items using that circuit. Also, it would be nice to know what fuse controls the fan and check it for polarity although, for the life of me, I can't see how this situation could exist without a short circuit occurring.

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Old 09-09-2015, 07:52 PM   #29
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Hi Ron

Pulled the whole hood fan now and think I have found the problem.

At the invertor red wire is used for positive and black for negative which is normal practice. I have a red (positive) and a black (negative) wire coming out of the upper cabinet, from the invertor, for the hood fan power. Above the hood body, out of view, the red wire (positive) is connected to the white wire coming from the hood and the black wire is connected to the black wire coming the hood so now white is positive and black is negative.

When I first looked at the wires after taking off the electrical cover on the hood I'm thinking 14/2 loomex where black is positive and white is neutral. The fan motor has a black and white wire coming out of it so I'm assuming the black on the motor is positive and the white negative. The black incoming wire has been connected to the black fan wire and the white incoming wire has been connected to the white fan wire. But, ........ the white wire coming from the top of the range hood is connected to the red wire from the invertor so it's positive.

So, power is going directly to the motor via the red wire connected to the white motor wire and then the black (negative) is switched on the way out.

Polarity is correct coming from the invertor but when the red wire is joined to a white wire which is hidden from view then the assumption was made that black was positive and white negative and that's why I got a reverse polarity reading from my meter.

I believe that if I connect the red wire from the invertor to the black wire from the hood and the black wire from the invertor to the white from the hood then I should be in business with the fan running anticlockwise as it should.

Am I right in my assumption?

Thanks,

Barry
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Old 09-09-2015, 08:29 PM   #30
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I think so but I'm confused as to how it could have changed from working OK to running reversed.

At any rate it looks like you've got it figured out. Let us know how the test goes.

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