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Old 06-01-2020, 07:48 PM   #1
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What is this thing?

I have a 2007 Pilgrim Open road. Today I just noticed this roughly 4in in diameter plastic circle in the ceiling. Does anyone know what this is for?
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Old 06-01-2020, 07:50 PM   #2
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Looks like an AC operated fire or gas sensor box. The black/white/green sort of tip you off that it's 120 volts AC. Someone, PO probably, or maybe a dealer, just removed the detector and put on a standard cover. The dealer would do it so they could move it to a complaining buyers rig and couldn't find a good one fast enough.
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Old 06-01-2020, 07:52 PM   #3
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from your pictures, it looks like a metal box and screwed to the structure behind it.

The romex coming in leads me to think 120 volt, not 12 volt so that might eliminate a lot of items.

Can't tell from picture, is it on the ceiling? if so, I'd guess to mount a ceiling fan. Is it hot all the time or switched somewhere?
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Old 06-01-2020, 07:53 PM   #4
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Most likely it was a light fixture or a smoke detector. Someone was cheap and plated it instead of buying a new fixture. It is only a single set of wires so it is not a junction box.
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Old 06-01-2020, 08:05 PM   #5
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Ahhh HA! I agree with the ceiling fan idea. And it would have a pull chain. Unless there's some wall switch that you can't tell what it's supposed to do, that might be for a fan.
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Old 06-01-2020, 08:06 PM   #6
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If in living room/kitchen area ceiling.......ceiling fan
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Old 06-01-2020, 11:12 PM   #7
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(Except) rv smoke/ gas alarms are always 12vdc...(NOT 120vac) .... while this appears to be 120vac wiring type/ size, it could well be connected to 12vdc, or not connected at all? It was definitely owner installed, but maybe never connected/used? Checking for power and other end of wires maybe interesting?
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Old 06-02-2020, 09:56 AM   #8
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I used to own a 2004 Pilgrim Open Road 5'er before our current MH. They did have factory 120V ceiling fans in the living rooms. So like others have said, that box is most likely from a ceiling fan installation...
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Old 06-02-2020, 09:59 AM   #9
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Looks like 120 volt AC. If there's a 14 inch vent near by, this may be 120 volts for a roof top A/C unit that wasn't installed.

My ole Toyota Dolphin had something similar, All I needed to do was remove the vent, install an A/C unit and I was ready to go.
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Old 06-02-2020, 11:51 AM   #10
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Quote:
Originally Posted by THenne1713 View Post
(Except) rv smoke/ gas alarms are always 12vdc...(NOT 120vac) .... while this appears to be 120vac wiring type/ size, it could well be connected to 12vdc, or not connected at all? It was definitely owner installed, but maybe never connected/used? Checking for power and other end of wires maybe interesting?
Some smoke/gas alarms are both 12v and AC.
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Old 06-02-2020, 11:13 PM   #11
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Thanks for the good suggestions everyone. I took out my multimeter and couldn’t get any voltage from the black and white wires. Tried flipping on all the switches and still nothing. It’s right near my ac unit and a non powered vent. I was hoping it might be some kind of 12v wiring so I could install a powered fan in place of the vent.
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Old 06-03-2020, 05:04 PM   #12
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If it's for a 120 volt ceiling fan, or even a 12 volt fan, the fuse or circuit breaker has probably been removed since the option was not installed. Look for a breaker that is off.
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