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Expert Answers about Geo RV Vents and Fans


  • Replacement Circuit Board For A MaxxFan Mini Roof Vent
  • Since your MaxxFan Roof Vent, like the MaxxFan Mini Plus Manual RV Roof Vent w/ 12V Fan # MA00-03851 will turn on, but won't turn off, it sounds like your circuit board. I recommend replacing your circuit board with the Replacement Printed Circuit Board for MaxxAir Powered Lift RV Roof Vents w/ Reversible Fan # MA10A21275K.
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  • How to Disable Rain Sensor Feature on MaxxAir MaxxFan RV Vent MA00-04500K
  • It sounds like you have the MaxxAir MaxxFan RV Vent with rain sensor # MA00-04500K. This sensor consists of a small circuit board, which is shown in the linked photo. This could have failed, perhaps from damage from an impact from a tree branch or something like that. You can try turning this feature off. On the vent's keypad there is a button that allows you to disable the rain sensor feature. This is noted by an arrow in the second photo.
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  • Troubleshooting Airflow Direction With A MaxxFan Deluxe Roof Vent With Fan
  • The MaxxFan Deluxe Roof Vent # MA00-07500K is reversible, which means you are able to both exhaust stale air out of your RV and bring fresh air in from the outside. To enter ceiling fan mode, close the vent while the fan is still running. The fan then circulates the air inside your RV like a ceiling fan.
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  • Troubleshooting No Power to MaxxFan RV Roof Vent MA00-04000K
  • If you have tested the RV's power and ground wires leading to your MaxxFan Trailer Roof Vent # MA00-04000K and you have a full 12V of power reaching the vent's fan motor then there might be damage to the unit's control circuitry or the motor itself. If you apply a voltmeter like # PT89ZR to your power source wiring and you are not detecting a full 12 volts then it could be an issue with a depleted battery. This vent's motor draws 5-amps in use. If you have a spare battery known to be...
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  • MaxxFan Deluxe Roof Vent Only Working When Fuse Is Pulled And Re-Installed
  • To me it sounds like your MaxxFan Deluxe Roof Vent w/ 12V Fan, Thermostat, and Remote # MA00-07500K has a faulty circuit board. I recommend replacing the circuit board with the Replacement Printed Circuit Board for MaxxAir Powered Lift RV Roof Vents w/ Reversible Fan # MA10A21275K.
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  • Troubleshooting Fan-Tastic Vent 7350 Fan In New RV Working Intermittently
  • I would be happy to help! Starting with reprogramming the remote on your Fan-Tastic Vent Roof Vent w/ 12V Fan and Remote - Powered Lift - 14-1/4" x 14-1/4" # FV807350 you will need to hold the remote 12" away from the fan while holding both arrows. The Auto and Manual lights will begin flashing immediately. Continue holding both arrows down until the seven LEDs flash once. After that it is now programmed. If programing the remote does not change the issue with the fan working intermittently...
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  • Recommended Replacement Control Board For A MaxxAir MaxxFan Plus RV Roof Vent
  • Yeah, if you smelled smoke you most likely burned out your control board for your MaxxFan Plus Roof Vent w/ 12V Fan # MA00-04500K. The correct replacement would be the Replacement Printed Circuit Board for MaxxAir Powered Lift RV Roof Vents w/ Reversible Fan # MA10A21275K. We don't currently have the keypad replacement but the control board replacement should get your fan up and running again.
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  • Troubleshooting RV Roof Vent Fan That Only Turns On When Pressing Up On Fan Assembly
  • Based on the issue you are describing the motor of your fan has gone bad and has too much play. When you are pushing up on the fan the shaft is engaging allowing the fan to turn on. We do offer quite a few replacement motors, but the correct one will be dependent on the specific fan you have. If you can provide the model number of your fan I would be happy to make a recommendation for you. For example if your fan is the Fan-Tastic Vent Roof Vent w/ 12V Fan and Remote - Powered Lift -...
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  • MaxxFan Plus Roof Vent Will Not Operate On AC Power Pedestal
  • Yes, it appears your MaxxFan Plus Roof Vent w/ 12V Fan, Thermostat, and Remote, # MA00-04500K has been installed incorrectly. This will only operate from a 12VDC power supply, connect the two wires on the vent to your RV's electrical system. The black wire is for power, and the white wire is for ground. If your fan will work when you are not connected to a AC power pedestal but will work as intended when disconnected from the power pedestal and only have battery power available, then...
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  • Fantastic Vent Ceiling Fan Won’t Open or Close
  • The most common problem when a fan like the MaxxFan Plus Roof Vent part # MA00-04500K will run the fan but won't open is the Replacement Rain Sensor for MaxxAir RV or Trailer Roof Vent Fans part # MA34FR . I would first attempt to clean the sensor really well and check for operation. If it works your good to go. If it doesn't use the replacement sensor listed here.
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  • Troubleshooting Beeping and Fan Stop of the MaxxAir MaxxFan Roof Vent Fan Model 6200K
  • Yes, it does appear as if your MaxxFan Deluxe Roof Vent w/ 12V Fan and Thermostat, # MA00-06200K has a control board issue. I suggest the Replacement Printed Circuit Board for MaxxAir Manual Lift RV Roof Vents, # MA10A21276K.
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  • Replacement Parts for MaxxAir MaxxFan Plus Roof Vents
  • If you have 12 volts going to the fan it is motor. You will need the Replacement 12-Volt Variable Speed Fan Motor for MaxxAir MaxxFan RV Roof Vents item # MA10-20968. If the voltage isn't going to the motor than it could be the controller which is item # MA10A04751KS. We offer both of these parts in the Replacement MaxxFan Plus 10-Speed Roof Vent with Smoke Lid item # MA99FR.
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  • Troubleshooting A MaxFan RV Air Roof Vent That Beeps Constantly
  • This is more than likely a circuit board issue, and to alleviate the issue you'll just need to replace your unit's circuit board. If you have the MaxxFan Plus models: 00-04500K, 00-04700K, 00-04800K, and 00-04900K, or the MaxxFan Deluxe, models: 00-0700K, 00-07500K, 00-08500K, 00-08700K, and 00-08900K, then the correct replacement circuit board is the Replacement Printed Circuit Board for MaxxAir Powered Lift RV Roof Vents w/ Reversible Fan # MA10A21275K. If you have the MaxFan models...
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  • Solution for Northern Breeze RV Roof Vent with Bad Motor
  • The motor for the V2525 Northern Breeze fan is unfortunately not available as a replacement part. If the motor is bad then the best solution is to replace the entire vent unit with part # V2094SP-34 which has the 12V fan and a manual lift. You will also need the install kit # 344270KITW which comes with seat and mounting hardware.
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  • Troubleshooting Fan-tastic Vent 7350 That Worked Twice
  • The Replacement Digital Remote Control for Fan-Tastic Vent Roof Vent with 12V Fan # FV9068-09 is the replacement remote for the Fan-Tastic Vent Roof Vent w/ 12V Fan and Remote - Powered Lift - 14-1/4" x 14-1/4" # FV807350. If that is the unit you have, then the remote will allow you the adjustments you are seeking as long as you are receiving the consistent 12v power needed to the unit. If you are not sure you are getting the 12v consistent power, I recommend using a circuit tester like...
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  • Troubleshooting A Non-Working MaxxAir MaxxFan RV Roof Vent
  • If your MaxxAir Fan # MA00-04000K isn't powering on or lifting open then the first step is to check the power. First check the fuse in your power center, it could just be as simple as a blown fuse. From there check the power at the vent using a digital multimeter # PT89ZR. If you pull down the inner shroud you'll be able to pull down the wiring to test it. If you have 12v at the vent then the issue most likely lies with our circuit board. For your 4951KS model you'll need the Replacement...
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  • Troubleshooting A MaxxFan Deluxe That The Fan Won't Turn Off
  • It sounds like the circuit board for your MaxxFan Deluxe Roof Vent w/ 12V Fan, Thermostat, and Remote - Powered Lift - 10 Speed # MA00-07500K is the issue. I recommend replacing your circuit board with the Replacement Printed Circuit Board for MaxxAir Manual Lift RV Roof Vents # MA10A21276K.
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  • Troubleshooting A MaxxAir MaxxFan 4900N Cover That Won't Lift Or Retract
  • Since you believe it may be a power issue I first recommend checking the voltage with a multimeter like # PT89ZR and ensuring you have 12v powering the unit. If you do then we know this isn't the cause. The next step would be to replace the operator mechanism which controls the lifting and closing of the vent cover. For a 4900n model you would need the Replacement Operator Mechanism for MaxxAir MaxxFan Plus or MaxxFan Deluxe Roof Vents # MA10-20281K-1AF. It could simply be the your operator...
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  • Troubleshooting A Fan-Tastic Fan RV Roof Vent That Isnt Running
  • While we don't have a specific wiring diagram for your 2000-2001 Fan-Tastic Fan # FV803350 I can say that all of these vents only have two wire; black (power) and white (ground). If you pull down the trim on the inside of your trailer you'll be able to easily see the wiring and can then check the voltage with a multimeter # PT89ZR. If you're not getting 12v then we know the issue is with the power. If you are getting 12v then most likely the motor needs to be replaced, which you can do...
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  • Troubleshooting MaxxFan Deluxe Roof Vent Powered Lift Not Working in Auto Mode
  • I spoke with my contact at MaxxAir regarding the issue you are having with your Deluxe Roof Vent # MA00-07500K. He said the dome not automatically lifting when starting the fan might be related to the temperature you have the unit set at for "auto" mode. If the temperature inside the trailer/RV is below the set temperature on the fan, the dome will not automatically lift when starting the unit. This is normal operation. What you can try to do is adjust the set temperature on the unit...
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