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Old 11-22-2021, 12:34 PM   #1
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2012 Adventurer 35P Electrical Load Control

I am trying to better understand how my new to me Adventurer electrical load controller works, or really how it shuts down devices when the load sensor needs to reduce power use.
I do not see any 115 VAC relays on the online electrical schematics for the 4 devices that can be automatically shut down to reduce electrical load.
So how does the electrical load control shut down these devices. Is it at the electrical circuit breaker or does it do it with the 12 volt circuits to the devices?
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Old 11-22-2021, 06:35 PM   #2
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Good question. I think there's a little guy in there watching the load demand and has his hand on a switch.

So I guess I don't know either, but am interested.
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Old 11-22-2021, 06:56 PM   #3
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Looks like the relays are in with the breakers, behind the cover.Click image for larger version

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Old 11-22-2021, 07:08 PM   #4
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Looks like the relays are in with the breakers, behind the cover.Attachment 349602
Great explanation Twinboat. So it's a computer, not a little guy!

I have the first one described, and it seems to work just fine.
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Old 11-22-2021, 07:36 PM   #5
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Great explanation Twinboat. So it's a computer, not a little guy!



I have the first one described, and it seems to work just fine.
There's still a little guy, very little guy, he's inside the computer.
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Old 11-22-2021, 09:18 PM   #6
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Thank you twinboat.
The rear AC/heat pump tripped its circuit breaker, the breaker was reset and holds in but now the rear ac/heat pump will not come on in any mode.
I will start trying to ring out the ac and dc circuitry over the Thanksgiving weekend.
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Old 12-01-2021, 07:42 AM   #7
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Thank you twinboat.
The rear AC/heat pump tripped its circuit breaker, the breaker was reset and holds in but now the rear ac/heat pump will not come on in any mode.
I will start trying to ring out the ac and dc circuitry over the Thanksgiving weekend.

Often that means that the motor start capacitor for the compressor or its solid state PCTR has failed and needs to be replaced.

If you hear it humming and shutting off when you first turn it on then its likely an issue with the start capacitors.

If either one has failed they need to be replaced as a set and should look similar to this:



Note that this is often the result of low voltage from the power pedestal a common problem at most campgrounds and can be a regularly reoccurring problem unless you install a voltage correction transformer such as a Hughes AutoFormer to boost the low voltage back up to where it should be. Low voltage results in a higher amperage being drawn to satisfy the motors wattage requirements and higher amperage results in more waste heat in the electrical circuit which destroys capacitors and PTCRs along with many other electrical devices in your coach.
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Old 12-01-2021, 06:41 PM   #8
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Quote:
Originally Posted by Offramp View Post
I am trying to better understand how my new to me Adventurer electrical load controller works, or really how it shuts down devices when the load sensor needs to reduce power use.
I do not see any 115 VAC relays on the online electrical schematics for the 4 devices that can be automatically shut down to reduce electrical load.
So how does the electrical load control shut down these devices. Is it at the electrical circuit breaker or does it do it with the 12 volt circuits to the devices?
Great question.
Do you have a Power Control System Central Monitor Panel? If so you have a control board in the service panel. Your 110V wiring diagram doesn't show this device. Mine does and here is the diagram: https://www.winnebago.com/Files/File...ire_175295.pdf
This device has relays on it. The board is programed to shed loads to keep the breakers from tripping. On my panel I can see if loads shed.
Hope this helps you.
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Old 12-04-2021, 04:46 PM   #9
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Thank you jerichoric,
Yes I have the Power Control System Central Monitor Panel.
That Colman Mach 8 AC/Heat Pump is DOA. BUT thanks to you I now know more about how and where Winnebago sheds the load to try to keep from overloading the incoming power supply.

I worked with electrical relay logic drawings for 39 years, but with the change to PLC like controls, I have been left in the dust trying to understand electrical circuits.
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Old 12-05-2021, 11:17 AM   #10
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Originally Posted by Offramp View Post
Thank you jerichoric,
Yes I have the Power Control System Central Monitor Panel.
That Colman Mach 8 AC/Heat Pump is DOA. BUT thanks to you I now know more about how and where Winnebago sheds the load to try to keep from overloading the incoming power supply.

I worked with electrical relay logic drawings for 39 years, but with the change to PLC like controls, I have been left in the dust trying to understand electrical circuits.
Your welcome. Just one of many trying to help.

DOA? I think a fix is at hand. Try a new starter cap. It's located on the right side, when facing the compressor, under the cover mounted on the side of the air plenum. Make certain the breaker for that unit is off. (Just being cautious with that statement.)
Look for this on Amazon:
Coleman 8333A9021 Hard Start Kit

Hope it works for you.


Another thought is in the controller. Open the cover behind the compressor. In the box is the controller. Remove the wing nuts and pull it out. Open the cover of this unit and look for burnt wires or relays. If you need a relay please feel free to PM me. I can help you with this.


Rick
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