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08-24-2016, 06:38 PM
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#1
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Member
Join Date: Sep 2011
Location: Rockford, MI
Posts: 61
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What is this plug?
This should be easy for someone with the same plug. I just discovered this 3-prong plug that is not plugged in. It comes out in the electric area. (trunk/bay) There is a receptacle close, but I would like to know what the plug is for, before plugging it in. We are parked @ home, plugged in to the dedicated RV line & everything works as expected. So, any ideas?
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08-24-2016, 06:42 PM
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#2
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Member
Join Date: May 2010
Posts: 65
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Looks like a engine heater plug, used in the cold weather, just my 2cents worth..
Bill
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08-24-2016, 06:43 PM
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#3
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Senior Member
Newmar Owners Club Freightliner Owners Club
Join Date: Sep 2012
Location: Miramar Beach, Florida
Posts: 864
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What is this plug?
Is that compartment near your engine ? If yes that may be for the engine block heater which can be used during extreme cold weather temps. I have one but have never used it, or have not needed it so far.
Sent from my iPad using iRV2 - RV Forum
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Ken & Diane
2014 Newmar Ventana 4369 All Electric 400HP
2023 Jeep Grand Cherokee Overland
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08-24-2016, 07:24 PM
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#4
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Member
Join Date: Sep 2011
Location: Rockford, MI
Posts: 61
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The compartment is near the back, as is the engine. That might be a good feature to have as we live in MI.
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08-24-2016, 07:30 PM
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#5
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Senior Member
Winnebago Owners Club
Join Date: Mar 2014
Posts: 14,885
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#4 voting for engine block heater.
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Gordon and Janet
Tour 42QD/InTech Stacker
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08-24-2016, 07:37 PM
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#6
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Senior Member
Join Date: Jan 2012
Location: Benton Harbor, Michigan
Posts: 856
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That cord goes to the engine block heater. The receptacle near it is where you plug into and is controlled by a switch somewhere up front in your control panel, or if like mine is in the ceiling of the overhead cabinet above the passenger seat.
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2008 Nash 25S
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08-25-2016, 07:58 AM
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#7
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Senior Member
Forest River Owners Club Freightliner Owners Club
Join Date: Feb 2005
Location: Gig Harbor, WA
Posts: 581
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I'm glad someone else asked this question. I was going to ask the same thing. A label would have been helpful.
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2012 Coachmen Sportscoach RD385DS, Freightliner Chassis, Cummins 340HP ISB Turbo Diesel
2007 Saturn Ion 3 Toad
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08-25-2016, 08:24 AM
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#8
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Registered User
Join Date: Mar 2010
Posts: 8,777
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Quote:
Originally Posted by schools out
This should be easy for someone with the same plug. I just discovered this 3-prong plug that is not plugged in. It comes out in the electric area. (trunk/bay) There is a receptacle close, but I would like to know what the plug is for, before plugging it in. We are parked @ home, plugged in to the dedicated RV line & everything works as expected. So, any ideas?
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schools out
The only way to KNOW FOR SURE what that 3 prong plug is for is to locate the cord on the back side of the panel it comes out through and follow it to the end opposite the end with the plug on it.
Next test the receptacle and determine whether or not the power to it is controlled by a switch somewhere in your coach.
Mel
'96 Safari
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08-25-2016, 10:00 AM
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#9
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Senior Member
Join Date: Mar 2014
Posts: 1,459
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What rig do you have? Some have suggested asking it to your signature line. Helps speed up trouble shooting.
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Gary 2021 NH Majestic
Ram 5500 with Bodywerks bed
Box Elder, SD and the road
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08-25-2016, 01:28 PM
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#10
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Senior Member
Newmar Owners Club Freightliner Owners Club
Join Date: Aug 2013
Location: West Texas
Posts: 184
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On our Ventana, the receptacle near the plug is only hot when plugged in to shore power, it does not run off the inverter. Have never found a switch that controls it.
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Lee & Leslie and Ellie & Jake the wonder dogs
2020 Dutch Star 4369 (2014 Ventana 4369 retired)
2016 Wrangler Unlimited Hard Rock toad, Blue Ox, Air Force One
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08-25-2016, 02:59 PM
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#11
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Senior Member
Join Date: Nov 2007
Location: Charleston, WV
Posts: 3,467
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There should be a circuit breaker on your main panel labeled "block heater", so you could leave the heater plugged in and turn it on/off at the breaker. On mine Newmar wired the voltage monitor to the output of the breaker so I have to leave mine turned on and the plug pulled out as in the picture.
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John and Mary Knight
2015 Newmar Ventana 4311 - wheelchair accessible
2015 Cadillac SRX Luxury AWD
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08-25-2016, 03:40 PM
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#12
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Member
Join Date: Sep 2011
Location: Rockford, MI
Posts: 61
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Thanks for the information. Yes, RJOL, a label would have been great. Not as helpful as this forum group, however. We found a switch up front labeled "aux heater". We also looked through the manuals that pertain to the engine. There are references to preheating the engine, but no directions on how to do this...short of letting it run for a while.
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08-25-2016, 03:47 PM
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#13
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Senior Member
Join Date: Mar 2015
Posts: 2,813
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Quote:
Originally Posted by Lee L
On our Ventana, the receptacle near the plug is only hot when plugged in to shore power, it does not run off the inverter. Have never found a switch that controls it.
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We have a '15 VTDP with a mid coach half bath. The circuit breaker to the block heater is located in the half bath.
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08-25-2016, 07:10 PM
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#14
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Senior Member
Join Date: Jan 2012
Location: Benton Harbor, Michigan
Posts: 856
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Quote:
Originally Posted by schools out
Thanks for the information. Yes, RJOL, a label would have been great. Not as helpful as this forum group, however. We found a switch up front labeled "aux heater". We also looked through the manuals that pertain to the engine. There are references to preheating the engine, but no directions on how to do this...short of letting it run for a while.
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The switch labeled "aux heater" I'm assuming is in the cab control 12 volt DC panel of the dash. That's for a rear heater that uses engine coolant for heat when driving. It's not for a engine block heater.
As for the preheating the engine. I think they are talking about preheating the air intake for cold weather starting. When you first turn the key to the on position when the ambient temp is low enough a dash light will indicate the intake manifold heat grid is on. When the light goes out then you start the engine.
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2008 Nash 25S
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