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Old 01-12-2019, 01:15 PM   #1
Junior Member
Join Date: Sep 2018
Location: Tustin, CA
Posts: 4
Coach Battery Shutoff Switch Question

Hello All,

I have a 2002 36' Monaco Monarch. My coach battery switch is bad and needs to be replaced. Do any of you know if that switch is the Guest 2100 with AFD or without AFD?

Thanks in advance for any feedback,


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Old 01-12-2019, 02:15 PM   #2
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Join Date: Jul 2014
Posts: 14,939
AFD means " Alternator Field Disconnect ". It shuts off the alternator to prevent damage to it, if the engine was running when switched off.

Not nessessery with a coach battery disconnect and probably not on any MH. Its more a marine engine or race car thing.

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Old 01-13-2019, 09:27 AM   #3
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Join Date: Mar 2015
Location: Fort Wayne, IN
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FWIW, I recently had to replace a Guest disconnect switch. Bought from Amazon: Guest 2102 Cruiser Series Marine Battery On/Off Switch .

Gene M
2004 Knight
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Old 01-13-2019, 09:45 AM   #4
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Join Date: Dec 2009
Location: Underwood WA
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Bought my replacement at NAPA just last month. $29.
Bev & Dick and Fuzzy the cat
2005 Safari Cheetah 38
2009 Honda CRV dinghy
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Old 01-13-2019, 01:39 PM   #5
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Thanks for the replies

Thanks guys for the prompt reply(s). I thought that I didn't need it but thought it would be worth an ask to make sure!

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battery, switch

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