I need HELP!!!: fuse box fan runs all the time

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fuse box fan runs all the time

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Forum Name: I need HELP!!!
Forum Discription: Perplexed/need help with a problem - ask here
URL: https://www.rpod-owners.com/forum_posts.asp?TID=14902
Printed Date: 11 Jul 2026 at 7:24am
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Topic: fuse box fan runs all the time

Posted By: Lafe
Subject: fuse box fan runs all the time
Date Posted: 26 Aug 2021 at 9:50am

Getting ready for a trip I hooked up to shore power at home and turned the frig on. The electric plug light blinks on and off and the fuse box fan runs all the time. The frig is cooling, lights and out lets work. Is it ok if the fuse box fan runs all the time ?

Replies:

Posted By: Lafe
Date Posted: 26 Aug 2021 at 10:08am

Posted By: GlueGuy
Date Posted: 26 Aug 2021 at 10:15am

You're probably hearing the cooling fan in the converter behind the fuse box. When the fan is running it generally means the battery charger is working to bring your battery/ies up to full charge. The battery/ies should get "full" in a couple hours or so, depending on their state of charge. You may want to check the battery/ies with a volt meter and also check the water level.

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bp
2017 R-Pod 179 Hood River
2015 Ford F150 SuperCrew 4WD 3.5L Ecoboost

Posted By: Lafe
Date Posted: 26 Aug 2021 at 10:23am

Posted By: jato
Date Posted: 26 Aug 2021 at 6:23pm

Proper maintenance is key to battery longevity. Please heed GG's advice. Invest in a voltmeter/multitestor if you don't already have one. Got mine at HF years ago for $5 and it still works 5 years later. Sounds like your converter is functioning properly as you hear the fan running.

Don't run your 12v battery below 60% S.O.C. or 12.2v for maximum battery life. Keep electrolyte levels full and only use distilled water. Keep posts and exterior battery clean by making a weak solution of baking soda and water, brush on and hose off. Our 12v Interstates were made 12/2010 and 4/2011 and still perform very well for us boondockers.

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God's pod
'11 model 177
'17 Ford F-150 4WD 3.5 Ecoboost
Jim and Diane by beautiful Torch Lake
"...and you will know the Truth and the Truth will set you free."