| Mystery fuse [message #188269] |
Thu, 25 October 2012 20:33  |
thorndike
Messages: 406
Registered: January 2011
Location: Conifer, Colorado
Karma: 0
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Senior Member |
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Howdy all,
I have a lead (mystery wire) that runs from the front of the coach (under the hood) to the refrigerator. This lead has a small fuse holder inline which has broken and let the fuse fall out.
Unfortunately, there is no indication of what amperage the fuse should be so I can't get the fridge working until I get the fuse replaced. Does anyone have an idea of what fuse I should put in?
This is a 76 Royale (Coachman)
Robert Peesel
1976 Royale 26'
Side Dry Bath
Conifer, Colorado
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| Re: Mystery fuse [message #188290 is a reply to message #188269] |
Thu, 25 October 2012 22:25  |
Craig Lechowicz
Messages: 541
Registered: October 2006
Location: Waterford, MI
Karma: 0
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Senior Member |
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Robert,
I don't have a propane/3 way frig, but it sounds like you do, and that it may not have been original to the coach. On the GMC built motorhomes with electric only frig's they use much less current than the propane/electric one does when in 12 volt mode. I'm guessing that someone, (possibly Coachman, sounds like they were sometimes a little creative on wiring) may have run a wire from the center terminal of the isolator to the frig, so it would only run the heating coil when the engine was running to avoid running the battery down. I think the propane frig's draw somewhere between 20 and 30 amps for heating. But, and most important, you don't want to use a bigger fuse than the gauge of the wire can handle. Usually 20 amp for a 12 gauge wire and 30 for a 10 gauge wire . . .
But, I'm definitely guessing, as I don't have a Coachmen or a propane frig.
Craig Lechowicz
'77 Kingsley, Waterford, MI
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| Re: Mystery fuse [message #188398 is a reply to message #188269] |
Fri, 26 October 2012 19:41 |
midlf
Messages: 2212
Registered: July 2007
Location: SE Wisc. (Palmyra)
Karma: 1
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Senior Member |
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| thorndike wrote on Thu, 25 October 2012 20:33 |
Howdy all,
I have a lead (mystery wire) that runs from the front of the coach (under the hood) to the refrigerator. This lead has a small fuse holder inline which has broken and let the fuse fall out.
Unfortunately, there is no indication of what amperage the fuse should be so I can't get the fridge working until I get the fuse replaced. Does anyone have an idea of what fuse I should put in?
This is a 76 Royale (Coachman)
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Check the nameplate on the fridge. It should have the DC load listed. Use a fuse about 1.5 times the listed load. I wouldn't go higher than 2x.
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI
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