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Troubleshooting Fan-Tastic Roof Vent FV803350 That Doesn't Open Or Close

Question:

Hello, my new vent will not open or close automatically, even with rain. Do you have any suggestions on what may cause it to not work. Everything else works fine.

1

Helpful Expert Reply:

First thing you will want to check is that the fan has power and is grounding properly. You can try using jumper wires to the vent wiring that are run to known ground and power to see if that works.

Next, you can check the fuse of the fan to make sure it is not blown. Near the speed setting is a plug that holds a 4 amp fuse. I attached a picture that points out where it is.

If the fan still works when you manually open the lid that would indicate a problem with the lid motor. Since this is new and has a 2 year warranty you would need to contact the dealer you go the vent from.

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helpful expert reply by:
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Jameson C

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Follow up Questions


Bob H.
Model 3350 Lid will open and close automatically, but the fan does not come on at all. Help.
Etrailer Expert
Reply from Chris R.

If just the fan isn't working the fan motor is likely bad. You can replace it with part # FVK8017-00 .

Reply from Bob H.

@ChrisR the plunger nut was loose, tightened it up and now works like new.

Etrailer Expert
Reply from Chris R.

@BobH That's great news. Thanks for letting me know!

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