Troubleshooting Fantastic Vent Fan with Rain Guard and Thermostat

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Question:

how do I trouble shoot this fan ? has rain guard auto opener and thermostat it was full of black mold and I used a cleaner with bleach in it to kill the mold it work good after cleaning but the next day it wouldnt even open 8100ts roof vent fan

asked by: JIM B

1

Helpful Expert Reply:

Your Fantastic Vent model 8100ts doesn't have replacement parts available, so I recommend using a circuit tester like # PTW2993 to check for power functions. I reached out to the manufacturer and in addition to this, they said to check the circuit board. You may need to simply clean it and add some dielectric grease like # 11755 to help with electrical connection and keep dirt and moisture out. If there are scorch marks on the circuit board, then the board is fried and the entire unit will need replaced.

To replace the unit, I recommend the Fan-Tastic Vent Roof Vent w/ 12V Fan and Thermostat - Powered Lift # FV803350

expert reply by: Jason S

1

Bruce C.

4/28/2020

I have a fantastic fan with rain sensor that constantly opens and closes no matter what temperature the thermostat is set at. It keeps opening a little then closing a little. It is very annoying, can you help?

Chris R.

4/30/2020

The rain sensor may just need to be rest. To reset the sensor all you need to do is disconnect the vent fan from power, let it sit for a few minutes, and then connect it again. I think this will resolve the issues you're having but if not please let me know.

Bruce C.

5/1/2020

@ChrisR I removed the fuse and let is stand for 10 min. and then replaced the fuse but the lid still wants to open and close every 15 to 20 seconds, not much but just enough that drive motor run up or down for a few seconds at a time. Is there any other cleaning or possible connections that could be the culprit? Thanks for you help. Bruce

Chris R.

5/4/2020

@BruceC Thanks for the additional info. I reached out to my contact at Fan-Tastic Vent and he said that there's not much else you can check/clean. He recommend taking it up to a local service center to have it repaired or replaced.

Sverre

7/22/2020

My problem is the same as the problem described above. Dome constantly lifts and closes like it doesn’t know where it should be. Fan has wall mounted thermostat and rain sensor.

Answer 1

The MaxxFan Plus Roof Vent w/ 12V Fan, Thermostat, and Remote - Powered Lift - 10 Speed - Smoke #MA00-04500K is the similar fan to the 4951ksc. The issue you are having with the fan and lid are likely the circuit board which can be replaced with…

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Answer 2

The correct rain sensor for your MaxxFan roof vent is the part #MA34FR. The install and removal is pretty simple. You'll pry up on the old one and then trace the wiring harness back to where it plugs in to remove it. Then to install the new one…

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Answer 3

Hey Andrew! Yes, Furrion does have a Chill Cube model with a heat pump. This was actually just released for aftermarket sale. You will need a complete system to make the switch, new R32 units aren't backwards compatible with old R410A systems.…

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Answer 4

You can use the RV Propane Gas Detector #RS64FR (white) or #RS44FR (black) to replace your current Atwood 31013 propane gas detector. This will also use a 12v, 2-wire installation like your current detector.

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Answer 5

Hello Sam; that is a great question! I reached out to Furrion and you will be able to use the Furrion Chill Cube #FR69TD (white) or #FR49TD (black) with your furnace. However, the remote is not capable of operating the furnace at this time. Also, we…

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Answer 6

Hey Jon; I was actually just talking to Furrion about heat options for the Chill Cube yesterday (1/21/2025). At this time, the only way to have heat with this unit is through a furnace on a ducted setup. The Furrion Chill Cube RV AC w/ Air…

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Answer 7

Hello Bruce, Thanks for writing in! Using butyl tape between the trailer body and the Single Axle Jeep Style Trailer Fender - Diamond Plate Aluminum - 13" to 15" #HP96VR is exactly the route I would go. It stays flexible, creates an…

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Answer 8

Hello Lee, thanks for reaching out. If air won't go in at all it could be a bad/clogged valve. You could also have a major leak somewhere. Have you tried a soap test to see if there are any leaks?

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Answer 9

Hey Michael! The 2026 Kia Sportage Hybrid has the 12V battery integrated into the main battery so you won't be making a connection there. What you need to do is run the #C59236 hot lead to the 12V positive jump terminal under the hood. Everything…

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Answer 10

For your Reese Goose Box 5th-Wheel-to-Gooseneck Air Ride Coupler Adapter - Lippert 1621 and 0719 - 20,000 lbs #RP94720 you will need the Air System Service Kit for Reese Goose Box 5th Wheel to Gooseneck Air Ride Coupler Adapter #RP86007 which will…

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Answer 11

Yes you are correct the Replacement MaxxFan Plus 4-Speed Roof Vent with White Lid #MA00-04751KSX is the right replacement and measures 18 1/8" long and 16 1/2" wide, which is the same measurements as your current MaxxFan Plus Roof Vent w/…

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Troubleshooting Fantastic Vent Fan with Rain Guard and Thermostat

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