Troubleshooting MaxxFan Roof Vent Suddenly Not Working

Question

Question:

The Maxx fan in my 5th wheel no longer starts. None of the electric features work, vent will not open or close using the switches but I can open it manually. The fuse looks good, battery is almost 100. It was fine until this afternoon, no previous issues I know of. Any ideas? Thank you.

asked by: Jim

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Expert Reply:

If your MaxxFan Roof Vent w/ 12V Fan like the part # MA00A04301K that you were looking at suddenly stopped working I recommend using a circuit tester like # PTW2993 to see if power is getting to the fan. Depending on how the fan was installed, it may be attached to a circuit breaker that you can check but most likely it was wired directly to 12V power.

If you test the wiring and see that power is getting all the way to the switch, you may simply need to replace the switch. If you can tell me what model fan you have I can see if a switch is available. Some models may require you to replace the entire unit though.

expert reply by: Chris R

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Answer 1

When installing the MaxxFan Roof Vent #MA00A04301K that you referenced you will want to use butyl tape on the vent edges in addition to the sealant that you will apply around the unit to cover up bolt holes and any other areas that might lead to a…

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Answer 2

The replacement printed circuit board for your MaxxFan Delux Item #MA00-07500K is Item #MA10A21275K.

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Answer 3

Roof vents with fans like the MaxxFan Roof Vent w/ 12V Fan #MA00-04000K do not have a fuse anywhere in the fan itself. You will want to use a circuit tester like #PTW2993 to see if there is power getting to the fan. If it was installed by the…

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Answer 4

I am impressed with all of the information you gave me. We don't always get such thorough questions. But to answer your question, yes, the part #BVD0215-00 would be the correct replacement fan for your RV vent. Had you needed the motor as well…

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Answer 5

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 6

The Dometic RV Water Heater - Gas - Automatic Pilot - 12 Volt - 8,800 Btu - 6 Gal Tank Item AT96121 is the direct replacement for the GC6AA-10E. Unfortunately it is out of stock with no expected restock date. Instead I recommend the Furrion RV…

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Answer 7

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 8

In order to determine the correct roof vent, measure where the vent opens. The standard trailer roof vent opening is roughly 14-1/4" x 14-1/4" and have roof vents that measure 14" x 14". To pick the correct cover, you will also…

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Answer 9

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 10

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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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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Answer 12

Thanks for the pictures of your roof vent lid Marty! Based on that the correct replacement is the Ventline part #BVD0449-A01 that you referenced if you wanted white or the part #BVD0449-A03 for the same smoke color you have now.

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