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Old 12-11-2017, 08:30 AM   #1
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1972 23' Safari
Middletown , Rhode Island
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new fan install wire question - 72 safari

I have a question on which wires to connect my maxxair fan to in the front. I'm in the process of replacing my 45 year old original fan. When I started to remove my old unit I had to cut 2 red wires that were connected to the fan. I think these wires powered the fan motor when the skylight was opened, do I just cap off these wires and connect my new wires from the maxxair fan to the wires that powered my ceiling lights that were there? Thanks.

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Old 12-11-2017, 08:44 AM   #2
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1991 34' Excella
Princeton , New Jersey
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If you only ever want the fan on when the light is on that will work. If you want to control the fan separately you have to find a 12 volt source.

Not sure what your are saying when you say you cut 2 wires. The older roof fans were wired with a 12 volt source going to a switch in the vent cover. When the vent was opened the fan would come on some units had a switch second switch to be able to turn the fan off while the vent was open.

Test the red wires for voltage and wire the new fan to that assuming the new fan has some switching built into it. This will allow the new fan and or it's switch to control the fan.

As for the second red wire if you do not connect it I would assume some thing may no longer work. If you find something not working then you can decide if you want to connect it.

2004 Excursion 4x4
1991 34 ft. Excella +220,000 miles, new laminated flooring, new upholstery, new 3200 lbs axles

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Old 12-11-2017, 08:19 PM   #3
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1972 23' Safari
Middletown , Rhode Island
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Here are some pics...

After looking at the wires again I think what was throwing me off was the wire attached to the switch, so when the skylight is opened it makes the metal on metal contact to complete the circuit which in turn makes the fan run, so I just pull off the spade on the switch and connect it directly to my negative/ground wire on my new fan and positive wire to positive, and that should work, right?
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