Maxx Air Fan Install May 01, 2023, 07:20:10 pm Hey guys, sorry if this seems like a dumb question but I’m currently installing a Maxx Air fan in the LD where a vent had been (with no power). I installed the fan but need to wire it up. I was told I could wire it to the existing ceiling light near the closet doors. I took some photos here for reference. The black wire coming off the fan was marked positive by the company. I was able to fish the fan wires over to the ceiling light. Is the black wire going to the light switch the positive and the white is negative? Is it just a matter of splicing the black fan wire into the black ceiling light wire (and same for the white wires)? Thanks for any help.
Re: Maxx Air Fan Install Reply #1 – May 01, 2023, 08:43:07 pm Generally speaking for 12V circuits, if the two wires are black and white then black is positive and white is negative. Conversely, if the two wires are red and black then red is positive and black is negative. The convention of black(+) and white(-) wires loosely follows home AC wiring, where black is hot and white is neutral. The convention of red(+) and black(-) wires historically comes from the DC world.So to answer your questions:Is the black wire going to the light switch the positive and the white is negative? — YesIs it just a matter of splicing the black fan wire into the black ceiling light wire (and same for the white wires)? — YesNote: When you splice into the black existing ceiling light wire, do so on the long wire coming from the ceiling and not the short wire between the light and switch.- John
Re: Maxx Air Fan Install Reply #2 – May 01, 2023, 09:30:01 pm You could also get a simple automotive test light and find a good ground, then test each wire to see which one lights up the light thus positive! Its also a good tool to have in your tool box and a good length of wire for finding that ground. Or get a wireless tester? Karen~Liam 98 ~MB NinAAmazon.com: Performance Tool W2975C Deluxe Tester (12 Volt) With 3" Probe,Bla...Aicevoos A1 Voltage Tester/Non-Contact Voltage Tester with Range AC 12V-1000V... As an Amazon Associate Lazy Daze Owners' Group earns from qualifying purchases.
Re: Maxx Air Fan Install Reply #4 – May 02, 2023, 01:31:23 am Brian and Bree - let us know which floorplan and year is your rig. This way you can get more accurate help from those with specific experience...Steve
Re: Maxx Air Fan Install Reply #5 – May 02, 2023, 08:59:45 am I'm a little late to the game here, but if you gently pull the light fixture wires out of the ceiling you might find a couple wire nuts where you could make your splice in a cleaner fashion.Jon
Re: Maxx Air Fan Install Reply #6 – May 02, 2023, 11:05:35 am "Or get a wireless tester?"I've often recommended these in the past, and they're definitely a good (and inexpensive) tool to carry in your toolbox. But they only work with AC circuits, so in this case, a wireless tester wouldn't help you find 12 VDC wiring. The wired 12 V test probe that Karen & Liam recommended is what you need here.
Re: Maxx Air Fan Install Reply #7 – May 02, 2023, 11:19:12 am Andy, I have read on the Amazon listing for that contact-less currant sensing tester that it works with AC/DC. The video shows it working on a DC circuit and finding a failed splice. I ordered one to test it out. I have other models I use for AC wiring. So I was curious when looking for the simple wired tester and saw this AC/DC tester. I don't expect it to workbut for $9 I will add it to my LD tool kit in-case there is any AC wire sensing. Karen~Liam 98 ~MB NinA
Re: Maxx Air Fan Install Reply #8 – May 02, 2023, 11:24:49 am Every RV owner should own a 12-volt test light and an inexpensive multimeter ...and then learn how to use them.These two tools are indispensable for troubleshooting electrical problems in our LDs.A multimeter is able to distinguish between positive and negative wires without finding something that's grounded.A Non-Contact Voltage Detector is another handy tool when working on or near A/C circuits.Klein Tools NCVT1P Voltage Tester, Non-Contact Voltage Detector Pen, 50V to...Working hard to prevent getting shocked and keeping the smoke inside the wires, it's tough to get the smoke back in.Larry. 1 Likes As an Amazon Associate Lazy Daze Owners' Group earns from qualifying purchases.
Re: Maxx Air Fan Install Reply #9 – May 02, 2023, 02:01:51 pm Quote from: Karen & Liam - May 02, 2023, 11:19:12 am I have read on the Amazon listing for that contact-less currant sensing tester that it works with AC/DC. The video shows it working on a DC circuit and finding a failed splice. Do you have a link?I don't remember ever seeing a wireless DC detector except for clamp-on ammeters.Larry
Re: Maxx Air Fan Install Reply #10 – May 03, 2023, 09:20:20 am I'll be very interested to know if this works on DC circuits. What I see on the product page and on the device's label refers only to AC circuits, 50/60 Hz. The description in product photo number 7 says "Detects AC voltage ranging from 12V to 1000V," while the word "DC" doesn't appear on the product page. But I haven't watched all the videos (slow internet connection here), so maybe it has a trick up its sleeve. Let us know! 🙂
Topic: Maxx Air Fan Install (Read 211 times)
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Topic: Maxx Air Fan Install (Read 211 times)
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