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Old 03-13-2019, 10:48 AM   #1
Junior Member
Join Date: May 2018
Location: Red Bluff CA
Posts: 14
Maxxair vent fan failures

Anyone having issues with the Maxxair roof vent fans? I have replaced circuit packs under warranty due to failure. Now one goes into an overvoltage shut down at 13.5 volts. I called Maxxair and got the rudest tech support rep in recent memory. He states that the industry standard for components is 12v +/-10% which puts the limit at 13.2v. He had no understanding of RV battery operation. I turned my charger down to 13.2 so I could run the fans at the expense of my batteries. I now have the best solar charging since I bought this rig new (14.5v) and I canít run the fans when I need them the most. Any similar experiences or fixes? I miss my Fantastic Fan😢
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Old 03-13-2019, 10:59 AM   #2
Pickin', Campin', Mason
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Join Date: Aug 2015
Location: South Western PA
Posts: 9,159
I have not read/heard of a MaxxFan failure such as you mention.

Have seen some fan blade issues and once a power open motor.

I have three MaxxFans in my current 5th wheel. Two each in my last two 5th wheels.
No issues whatsoever no matter the charging rate.

How about an inline voltage regulator at the fan?
2016 Flagstaff 8529IKBS Diamond Package 5th Wheel-Goodyear Endurance Tires
2017 Ford F-Series SCREW 4x4 - Factory Puck
TST Tire Monitor w/Repeater - Sinemate 3500w Gen.

Days Camped: '16=46 '17=30 '18=51 '19=18
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