MaxxFan 7500K
When I bought our brand new Outdoors RV 24RLS three years ago, I remember wondering why we would need automated remote control roof vents + fans, but I figured it’s a cool feature that won’t cause pro...
Forum Discussion
MaxxAir fans have proven sensitive to voltage. If you have solar, or lithium batteries, the voltage will go well above 13.5v and if high enough the circuit boards will cook. The newest generation of the MaxxAir fans has a modified circuit board that allows higher (slightly) voltages.
The folks on the Escape trailer forum have been down this rabbit hole repeatedly and finally determined that using a small buck boost transformer (about the size of a cigarette pack) is probably the best way of assuring proper voltage to the fan. Here are a FEW of the threads on this subject.
Charles
https://www.escapeforum.org/forums/f38/boards-frying-from-14-volt-solar-charging-22344.html
https://www.escapeforum.org/forums/f9/maxxfan-known-problem-21959.html
https://www.escapeforum.org/forums/f9/maxxfan-issues-20950.html
https://www.escapeforum.org/forums/f8/maxxfan-7000k-voltage-regulator-14667.html
The folks on the Escape trailer forum have been down this rabbit hole repeatedly and finally determined that using a small buck boost transformer (about the size of a cigarette pack) is probably the best way of assuring proper voltage to the fan. Here are a FEW of the threads on this subject.
Charles
https://www.escapeforum.org/forums/f38/boards-frying-from-14-volt-solar-charging-22344.html
https://www.escapeforum.org/forums/f9/maxxfan-known-problem-21959.html
https://www.escapeforum.org/forums/f9/maxxfan-issues-20950.html
https://www.escapeforum.org/forums/f8/maxxfan-7000k-voltage-regulator-14667.html
