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Old 03-17-2019, 02:45 PM   #21
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Quote:
Originally Posted by Red Dog View Post
Normally, when the green light is on, that means that the fan is in auto mode and won’t go on until the temperature reaches the threshold. Maybe 70° F, but not sure.

To disengage the auto mode and turn off the green LED, I usually press the start button. However, the start button won’t respond.


Fred M.
Thanks Fred . Pat
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Old 03-17-2019, 02:49 PM   #22
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Originally Posted by cpaharley2008 View Post
Tom, will you be in Osoyoos this year? Maybe bring some extra regulators, I will purchase a couple and I'm sure so will others.
Not traveling as much this year so no, we're not going to Osoyoos.

The vendor I bought the last ones from is:
https://www.ebay.com/itm/DC-DC-Conve...72.m2749.l2649

It takes about a month to get them. Make sure to adjust the output voltage with them not connected on the output - they can put out up to 28 volts from a 12 volt source.

I plan to install them for the Suburban SW6DEL and the furnace control board. After than, I should be able to run my solar controller back to the 15.6 volts without worrying what was going to pop next and will deplete the store of extra regulators I have on hand.
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Old 03-17-2019, 08:49 PM   #23
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Quote:
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I already have two. I should have installed one when I installed the replacement circuit board.

I will report back on the power cycle and will measure the DC input coming into the Maxxfan.

Fred M.


UPDATE!
After troubleshooting with tdf-texas, I measured the voltage coming into my Maxxair Fan 5100K and it was 3.54V, but the solar controller indicated 3.71V, so that may have been what was hosing my circuit board up. I pulled the fuse on the Maxxair Fan, and it was reset and started working again. I pulled the fuse off again and then installed the regulator ( which was set to 12.0 volts) in line. I think this will be the solution to my problem. I will keep an eye on it.

Fred M.
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Old 03-17-2019, 09:14 PM   #24
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Normally, when the green light is on, that means that the fan is in auto mode and won’t go on until the temperature reaches the threshold. Maybe 70° F, but not sure.
For those that haven’t read the manual the auto feature of the MaxxFan is pretty nifty. The default thermostat setting is 78F, but it is adjustable in 1 degree increments up or down. It will remember this setting until it is changed or power is interrupted.
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Old 03-17-2019, 09:49 PM   #25
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For those that haven’t read the manual the auto feature of the MaxxFan is pretty nifty. The default thermostat setting is 78F, but it is adjustable in 1 degree increments up or down. It will remember this setting until it is changed or power is interrupted.


Thanks Dave!

Fred M.
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Old 03-18-2019, 07:13 AM   #26
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Where are the pictures Fred? Share your handiwork for others to follow your lead....
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Old 03-18-2019, 07:47 AM   #27
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what model of the Maxxfan is ETI installing in the trailers these days ?

Should an owner remove the board and coat it ASAP after picking up a new trailer or has Maxxfan started doing this at the factory ?

Bob
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Old 03-18-2019, 07:49 AM   #28
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Where are the pictures Fred? Share your handiwork for others to follow your lead....

I followed the instructions and photos that Tom (tdf-Texas) posted. No reason to re-invent the wheel on this one.

Maxxfan 7000K voltage regulator
https://r.tapatalk.com/shareLink?sha...7&share_type=t

Fred M.
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Old 03-18-2019, 08:50 AM   #29
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Originally Posted by Lanark Camper View Post
what model of the Maxxfan is ETI installing in the trailers these days ?

Should an owner remove the board and coat it ASAP after picking up a new trailer or has Maxxfan started doing this at the factory ?

Bob
The Maxxfan control boards are not conformal coated from the factory.

Fred had his Maxxfan fail due to hard blowing rain getting the board wet causing it to fail. Conformal coating the control board is a good idea if you expect to have the fan hood open when it rains.
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Old 03-18-2019, 08:56 AM   #30
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The Maxxfan control boards are not conformal coated from the factory.

Fred had his Maxxfan fail due to hard blowing rain getting the board wet causing it to fail. Conformal coating the control board is a good idea if you expect to have the fan hood open when it rains.
thanks, I'll definitely do your voltage regulator mod (I just ordered one of those) as I have the solar panel option on our build sheet, so might coat the Maxxboard at the same time.

Bob
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Old 03-18-2019, 09:47 AM   #31
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Originally Posted by Red Dog View Post
I followed the instructions and photos that Tom (tdf-Texas) posted. No reason to re-invent the wheel on this one.

Maxxfan 7000K voltage regulator
https://r.tapatalk.com/shareLink?sha...7&share_type=t

Fred M.
Okay, thanx, not sure if your unit was wired different.
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Old 03-18-2019, 10:21 AM   #32
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Okay, thanx, not sure if your unit was wired different.
Escape wiring for the Maxxfan seems to come in two versions. One where the Maxxfan has it's power tapped off the wiring going between two overhead devices (usually LED lights) and the other where the Maxxfan is at the end of the wiring run.

Where the Maxxfan is powered from the tap, there will be two wire pairs entering the Maxxfan enclosure - one pair feeding power into the enclosure and one pair leaving the enclosure going to the next device. In this case, you cut the existing Maxxfan power wires from the crimped connections and insert the regulator between the incoming/outgoing power wires and the Maxxfan. This is the case I had with my trailer and is shown in the thread on how to install it. Terminals 1 & 3 are the incoming power wires and the terminals 2 & 4 are the wires going to the next LED light.
http://www.escapeforum.org/forums/f8...tor-14667.html

The other case is where the Maxxfan is at the end of the power wiring run. Here you have only one pair of wiring entering the Maxxfan enclosure. Again, cut the Maxxfan power wires from the incoming power wires and insert the regulator between the incoming wires and the Maxxfan. The connections would look just like the thread except you would have incoming power connections on input terminals 1 & 3 only with the output wiring still on output terminals 3 & 4.

Hope this helps clear things up.
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Old 03-18-2019, 10:34 AM   #33
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Okay, thanx, not sure if your unit was wired different.


It was wired the same, but here is a photo of the regulator and how I “bench-tested” it.

13.54V coming into the regulator and 12.01V going out.
Click image for larger version

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Old 03-18-2019, 10:54 AM   #34
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My 2016 Maxx fan, no remote, seems to have expired. Only sign of life is a faint beep when I press the power button.

Question. Hard to replace?? Im good at swapping stuff out but not replacing boards or heavy duty electrical stuff.

Greg
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Old 03-18-2019, 11:07 AM   #35
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My 2008 17B, no remote, Maxxfan quit working. I took the trailer to ETI for a check up and they found a broken wire. The fridge had been pulled by another RV shop so I suspect that may have been the cause. Anyway, I'd have the wiring checked before replacing the fan.
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Old 03-18-2019, 11:34 AM   #36
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Thanks Fred and Tom, very helpful.....
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Old 03-18-2019, 12:02 PM   #37
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Quote:
Originally Posted by Greggo View Post
My 2016 Maxx fan, no remote, seems to have expired. Only sign of life is a faint beep when I press the power button.

Question. Hard to replace?? Im good at swapping stuff out but not replacing boards or heavy duty electrical stuff.

Greg
Hi Greg ! We have a different problem so far , I found a vertical crack on outside lid . I put a piece of etherbond tape on it and so far good . Didn't see you t Quartzsite? Hope you get the fan resolved . Pat
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Old 03-18-2019, 12:44 PM   #38
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Pat, I noticed a number of what look like stress cracks on my cover last year, at the front of the unit. Does that sound like the same thing? I haven't done anything about it.
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Old 03-18-2019, 01:14 PM   #39
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I believe the smoke cover has a lifetime warranty, may want to replace with one of them. I switched covers on my first E19.
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Old 03-18-2019, 01:22 PM   #40
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From the Maxxair web site. I'll give them a call when I pull off the trailer cover.


MAXXFAN Deluxe MODELS

2-YEAR Limited WARRANTY with LIFETIME Limited Warranty on the lid
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