Troubleshooting MaxxAir MaxxFan 12V Fan-Powered Trailer Roof Vent That Beeps

Question

Question:

When I try to start fan it beeps twice and doesnt start.

asked by: Kim L

0

Expert Reply:

My contact at MaxxAir advised that there are three potential causes for the beep and no fan motion you're experiencing with your MaxxFan Trailer Roof Vent # MA00-04000K.

One potential cause is that the unit was wired with incorrect polarity. Make sure the white wire is grounded and the black wire is connected to your 12V power source (of at least 5-amps). Another possible reason for the malfunction is low incoming voltage. Use a voltmeter like # PT89ZR to make sure your battery is delivering the required voltage (no less than 11-volts).

The other possibility is that the circuit board in the fan is damaged, so try the above two checks to first eliminate those possibilities.

expert reply by: Adam R

0

Louis M.

7/28/2020

fan light is on showing auto mode....but will not run....this occurred after hitting multiple buttons on the fan itself during the night....green led light came on, remote won't respond, fan does not run....even when over 78 degrees.....how can I get it to go back to default operation from the remote.

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Jon G.

8/4/2020

To reset your MaxxFan Plus you're going to need to disconnect it from power manually. If this isn't something that you're comfortable with doing then you'll need to have a qualified electrician come out and help you with that.

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Ken C.

8/30/2020

@JonG I have the same issue with a MAXXFAN Deluxe 6200K. Disconnecting it and reconnecting allows it to work for a few minutes, but then the auto mode light comes back on and nothing works. I'm thinking the circuit board has an issue.

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Jon G.

9/3/2020

@KenC If you have adjusted the thermostat on your MaxxFan Deluxe Roof Vent # MA00-06200K and it keeps shutting off when it should be running then that does sound like it could be the circuit board. The replacement circuit board is part # MA10A21276K.

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Dana

6/27/2020

Hello... my MaxxAir fan still works, but while it’s spinning at a high rate it stopped exchanging much air... like even at 100%. What could be causing this?

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Chris R.

6/30/2020

That is a bit strange. Everything with the vent/fan seems to be working correctly with regards to operation, motor, etc? Have you tried reversing the fan direction to see if it helps at all?

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Dana

6/30/2020

@ChrisR Thank you for replying! I have tried swapping directions. It seems to be pulling a little bit of air around the edges, but I used to be able to put my hand up to the spinning fan and feel the breeze coming through the whole fan, now it's just the edges. I know it sounds crazy, but I am as confused as it sounds.

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Chris R.

7/6/2020

@Dana Thanks for the info. I'm sure you've checked this, but is there anything you can see that might be blocking air flow? Debris, leaves, etc?

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Dan T.

3/4/2020

My fan works but it no longer closes. It was gradual, there were times we could not get it open.

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Chris R.

3/5/2020

It sounds like the lift operator on your MaxxAir Vent has seen better days. To replace this you can use part # MA10-20281K-3CF and this should hopefully resolve the issue.

Helpful Links

Accessories-and-Parts/Maxxair/MA10-20281K-3CF.html

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Answer 1

When your Lippert Ground Control 3.0 #LC358590 has a reading that says "Comm Error" it is referring to the communication between the controller and touch pad. You will need to check your harness to ensure it is connected properly…

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Answer 2

I spoke with my contact at MaxxAir regarding your vent like the MaxxFan #MA00-04500K. He said what you are experiencing might be caused by a short in the rain sensor. Since that light is coming off and on, this is likely the issue and what is also…

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Answer 3

I sent all of your info and pictures to MaxxAir to find out what circuit board you'd need and they told me the board you need is the part #MA10A21275K.

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Answer 4

The Lippert Ground Control #LC358590 is very sensitive to voltage drop. I recommend checking the battery on your 2014 Duchman Denali 280 LBS. A Multimeter #PT89ZR will alloy to check the voltage at the battery as well as at the control module. If you…

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Answer 5

I reached out to MaxxAir as I was stumped since you had replaced both the parts already. Their tech said you will want to first check the voltage going into and coming out of the Circuit Board #MA10A21275K with a Meter #PT29ZR where the lift motor…

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Answer 6

Often an issue like you stated has to do with the battery not being fully charged. If the battery is even slightly low, sometimes this system is a little finicky. I recommend first charging your battery fully and testing it to ensure it is fully…

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Answer 7

On the MaxxFan website it says, "Yes, the MAXXFAN and MAXXFAN Plus are designed with dual lifting arms to fully support the lid if installed properly. This makes the lid very sturdy and able to withstand high driving speeds when left open, it…

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Answer 8

Since tie down straps like #EM34410 are bearing the vast majority of the weight of the bike, attaching the wheel chock using the #TWPH2770 hardware kit is perfectly acceptable. The chock is merely helping hold the front wheel in place, the tie downs…

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Answer 9

The Tow-Rax Wheel Chock #TWSPWM is supposed to only require 3-fasteners to secure it which is why the multi-surface hardware kit, #TWPH2770, comes with 3 fasteners as well. Either way, yes, 3 fasteners can be used. I think you might have TWSPWS which…

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Answer 10

The "Comm Error" on the Lippert Ground Control 3.0 Electric Leveling System refers to an issue with data transmission between the touch pad and control module. If the touch pad has been replaced and the issue still persists I would check…

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Answer 11

I sent all of this to my tech contact at LCI to see what they this is the problem and they were able to come up with a way to use the voltage readings to determine where the issue is: There are 4 wires on the harness as follows Black= power (need to…

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Answer 12

The correct replacement for your MaxxAir Circuit Board 10-04751ks is the following part: - Replacement Printed Circuit Board for MaxxAir MaxxFan Plus Roof Vents #MA10A04751KS As for the sensor wires, so long other wires are not damaged, I don't…

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Troubleshooting MaxxAir MaxxFan 12V Fan-Powered Trailer Roof Vent That Beeps

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