shop-talk
[Top] [All Lists]

Re: [Shop-talk] Finding a Blown Fuse (Automotive)

To: Eric Russell <ejrussell61@gmail.com>
Subject: Re: [Shop-talk] Finding a Blown Fuse (Automotive)
From: David Scheidt <dmscheidt@gmail.com>
Date: Thu, 11 Nov 2021 17:27:20 -0600
Cc: Shop Talk <shop-talk@autox.team.net>
Delivered-to: mharc@autox.team.net
Delivered-to: shop-talk@autox.team.net
References: <CAP7dBXDC6L08XWr8PaPawYUirNFXqcGmA9bZX+JMz_P89RvvLQ@mail.gmail.com>
--===============6562971907655676943==
Content-Transfer-Encoding: 7bit


--Apple-Mail-A39B3976-552B-497F-9D69-9662CB993C37
        charset=utf-8
Content-Transfer-Encoding: quoted-printable

The bcc is an an RV Custom Products product, installed by the converter.  So=
me of them were recalled, check that yours wasn=E2=80=99t, or the repair was=
 done. Failure was total loss of power to anything not installed in the chas=
sis maker=E2=80=99s factory.=20



> On Nov 11, 2021, at 17:00, Eric Russell <ejrussell61@gmail.com> wrote:
>=20
> =EF=BB=BF
> Correction - the hidden in plain view fuse was labeled F31. That designati=
on was never mentioned in any of my emails with Thor or their schematics. I d=
o not know if this part was installed by Thor or some aftermarket modificati=
on.=20
>=20
> EjR=20
>=20
>=20
>> On Thu, Nov 11, 2021 at 5:51 PM Eric Russell <ejrussell61@gmail.com> wrot=
e:
>> So, the blown fuse turned out to be an I-D-10-T issue. When I crawled up u=
nder the hood of the new (to us) motorhome to change the oil (they do not ma=
ke this an easy task...) I noticed a box way over on the left side labeled "=
Battery Control Center (Fuses Inside)". And buried therein was fuse # F17 'C=
argo Lights'. Which indeed was blown. Maybe Thor (the motorhome manufacturer=
) was trying to tell me to check there - but I clearly described the place I=
 had checked was the Ford "Power Distribution Box".=20
>>=20
>> EjR=20
>>=20
>>=20
>>> On Thu, Nov 11, 2021 at 8:57 AM Eric Russell <ejrussell61@gmail.com> wro=
te:
>>> Thanks for the replies. It may be a week or more before I gather the ene=
rgy to search for the fault again. I've already wasted two afternoons and ha=
ve other more important things to do (getting ready to go racing in VRG's Tu=
rkey Bowl at Summit Point, WV). The idea of using a tone generating tool is i=
nteresting. Horrible Fright has a $25 version - I may give that a try.=20
>>>=20
>>> EjR=20
>>>=20
>>>=20
>>>> On Thu, Nov 11, 2021 at 8:12 AM John <jbach@swiftrecruiters.com> wrote:=

>>>> How about a GFCI outlet that has tripped?
>>>>=20
>>>>=20
>>>>=20
>>>> On 11/10/2021 7:15 PM, Eric Russell wrote:
>>>>> Oh wise & beneficent Shop Talkers - I've run into a situation that has=
 me stymied. I need help locating a blown fuse in a motorhome.=20
>>>>>=20
>>>>> We recently bought a new (to us) motorhome. When installing the signal=
 booster for a TPMS (Tire Pressure Monitoring System) I accidentally shorted=
 a 12V wire in the cargo bay lights. There was a small spark (followed by a f=
ew swear words). I then went on a hunt for the blown fuse. There are three f=
use panels in this motorhome. Two in the Ford chassis (F-53) - one under the=
 hood and the other inside near the parking brake - plus one in the motorhom=
e's 120V - 12V power converter. I could not find a blown fuse anywhere.=20
>>>>>=20
>>>>> I contacted the manufacturer (Thor) who has actually been quite respon=
sive & has tried to help. After asking for my vehicle's VIN they emailed me s=
ome schematics (not actual wire diagrams but more a map showing the general l=
ocation of outlets, switches, etc with indications of which circuit they bel=
ong to). There are two schematics that appear to apply to my motorhome - one=
 indicates the cargo lights are connected to the Ford panel by the parking b=
rake, another indicates they are in circuit #6 of the converter's 12V panel.=
 Neither of those fuses are blown. While there I checked all the fuses I cou=
ld locate - none were blown. I've also signed up to a couple of motorhome fo=
rums but have not been able to find an answer there.=20
>>>>>=20
>>>>> Finally - my plea for help - is there any device one can use to trace w=
here a circuit originates? I've seen an electrician use a device to find out=
 what outlet goes to which breaker in our house.
>>>>>=20
>>>>> I've followed the hot wire from the cargo bay light back to where it e=
nters a wire harness along the motorhome's frame rail. I'm loath to rip open=
 the wire harness trying to chase the wire further upstream. As far as I can=
 tell there is nothing else in this circuit - everything else is working pro=
perly. Of course I can live without cargo bay lights but it bothers my OCD t=
o have it not working (when I know it did before my screw up).=20
>>>>>=20
>>>>> --=20
>>>>> Eric Russell
>>>>> Mebane, NC
>>>>>=20
>>>>>=20
>>>>> _______________________________________________
>>>>>=20
>>>>> Shop-talk@autox.team.net
>>>>> Donate: http://www.team.net/donate.html
>>>>> Suggested annual donation  $12.96
>>>>> Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net=
/archive
>>>>>=20
>>>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/shop-talk/jb=
ach@swiftrecruiters.com
>>>>>=20
>>>> _______________________________________________
>>>>=20
>>>> Shop-talk@autox.team.net
>>>> Donate: http://www.team.net/donate.html
>>>> Suggested annual donation  $12.96
>>>> Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/=
archive
>>>>=20
>>>> Unsubscribe/Manage: http://autox.team.net/mailman/options/shop-talk/ejr=
ussell61@gmail.com
>>>>=20
>>>=20
>>>=20
>>> --=20
>>> Eric Russell
>>> Mebane, NC
>>=20
>>=20
>> --=20
>> Eric Russell
>> Mebane, NC
>=20
>=20
> --=20
> Eric Russell
> Mebane, NC
> _______________________________________________
>=20
> Shop-talk@autox.team.net
> Donate: http://www.team.net/donate.html
> Suggested annual donation  $12.96
> Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/arc=
hive
>=20
> Unsubscribe/Manage: http://autox.team.net/mailman/options/shop-talk/dmsche=
idt@gmail.com
>=20

--Apple-Mail-A39B3976-552B-497F-9D69-9662CB993C37
        charset=utf-8
Content-Transfer-Encoding: quoted-printable

<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div dir=3D"ltr">The bcc is an an RV Custom=
 Products product, installed by the converter. &nbsp;Some of them were recal=
led, check that yours wasn=E2=80=99t, or the repair was done. Failure was to=
tal loss of power to anything not installed in the chassis maker=E2=80=99s f=
actory.&nbsp;</div><div dir=3D"ltr"><br></div><div dir=3D"ltr"><br></div><di=
v dir=3D"ltr"><br><blockquote type=3D"cite">On Nov 11, 2021, at 17:00, Eric R=
ussell &lt;ejrussell61@gmail.com&gt; wrote:<br><br></blockquote></div><block=
quote type=3D"cite"><div dir=3D"ltr">=EF=BB=BF<div dir=3D"ltr">Correction - t=
he hidden in plain view fuse was labeled F31. That designation was never men=
tioned in any of my emails with Thor or their schematics. I do not know if t=
his part was installed by Thor or some aftermarket modification.&nbsp;<div><=
br></div><div>EjR&nbsp;</div><div><br></div></div><br><div class=3D"gmail_qu=
ote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Nov 11, 2021 at 5:51 PM E=
ric Russell &lt;<a href=3D"mailto:ejrussell61@gmail.com";>ejrussell61@gmail.c=
om</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin=
:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">=
<div dir=3D"ltr">So, the blown fuse turned out to be an I-D-10-T issue. When=
 I crawled up under the hood of the&nbsp;new (to us) motorhome to change the=
 oil (they do not make this an easy task...) I noticed a box way over on the=
 left side labeled "Battery Control Center (Fuses Inside)". And buried there=
in was fuse # F17 'Cargo Lights'. Which indeed was blown. Maybe Thor (the mo=
torhome manufacturer) was trying to tell me to check there - but I clearly d=
escribed the place I had checked was the Ford "Power Distribution Box".&nbsp=
;<div><br></div><div>EjR&nbsp;</div><div><br></div></div><br><div class=3D"g=
mail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Thu, Nov 11, 2021 at 8:=
57 AM Eric Russell &lt;<a href=3D"mailto:ejrussell61@gmail.com"; target=3D"_b=
lank">ejrussell61@gmail.com</a>&gt; wrote:<br></div><blockquote class=3D"gma=
il_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,20=
4,204);padding-left:1ex"><div dir=3D"ltr">Thanks for the replies. It may be a=
 week or more before I gather the energy to search for the fault again. I've=
 already wasted two afternoons and have other more important things to do (g=
etting ready to go racing in VRG's Turkey Bowl at Summit Point, WV). The ide=
a of using a tone generating tool is interesting. Horrible Fright has a $25 v=
ersion - I may give that a try.&nbsp;<div><br></div><div>EjR&nbsp;</div><div=
><br></div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gm=
ail_attr">On Thu, Nov 11, 2021 at 8:12 AM John &lt;<a href=3D"mailto:jbach@s=
wiftrecruiters.com" target=3D"_blank">jbach@swiftrecruiters.com</a>&gt; wrot=
e:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.=
8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
 =20
   =20
 =20
  <div>
    <p>How about a GFCI outlet that has tripped?</p>
    <p><br>
    </p>
    <div>On 11/10/2021 7:15 PM, Eric Russell
      wrote:<br>
    </div>
    <blockquote type=3D"cite">
     =20
      <div dir=3D"ltr">Oh wise &amp; beneficent Shop Talkers - I've run
        into a situation that has me stymied. I need help locating a
        blown fuse in a motorhome.&nbsp;
        <div><br>
        </div>
        <div>We recently bought a new (to us) motorhome. When installing
          the signal booster for a TPMS (Tire Pressure Monitoring
          System) I accidentally&nbsp;shorted a 12V wire in the cargo bay
          lights. There was a small spark (followed by a few swear
          words). I then went on a hunt for the blown fuse. There are
          three fuse panels in this motorhome. Two in the Ford chassis
          (F-53) - one under the hood and the other inside near the
          parking brake - plus one in the motorhome's 120V - 12V power
          converter. I could not find a blown fuse anywhere.&nbsp;
          <div><br>
          </div>
          <div>I contacted the manufacturer (Thor) who has actually been
            quite responsive &amp; has tried to help. After asking for
            my vehicle's VIN they emailed me some schematics (not actual
            wire diagrams but more a map showing the general location of
            outlets, switches, etc with indications of which circuit
            they belong to). There are two schematics that appear to
            apply to my motorhome - one indicates the cargo lights are
            connected to the Ford panel by the parking brake, another
            indicates they are in circuit #6 of the converter's 12V
            panel. Neither of those fuses are blown. While there I
            checked all the fuses I could locate - none were blown. I've
            also signed up to a couple of motorhome forums but have not
            been able to find an answer there.&nbsp;</div>
          <div><br>
          </div>
          <div>Finally - my plea for help - is there any device one can
            use to trace where a circuit originates? I've seen an
            electrician use a device to find out what outlet goes to
            which breaker in our house.</div>
          <div><br>
          </div>
          <div>I've followed the hot wire from the cargo bay light back
            to where it enters a wire harness along the motorhome's
            frame rail. I'm loath to rip open the wire harness trying to
            chase the wire further upstream. As far as I can tell there
            is nothing else in this circuit - everything else is working
            properly. Of course I can live without cargo bay lights but
            it bothers my OCD to have it not working (when I know it did
            before my screw up).&nbsp;<br clear=3D"all">
            <div><br>
            </div>
            -- <br>
            <div dir=3D"ltr">
              <div dir=3D"ltr">Eric Russell
                <div>Mebane, NC</div>
              </div>
            </div>
          </div>
        </div>
      </div>
      <br>
      <fieldset></fieldset>
      <pre>_______________________________________________

<a href=3D"mailto:Shop-talk@autox.team.net"; target=3D"_blank">Shop-talk@auto=
x.team.net</a>
/www.team.net/donate.html</a>
Archive: <a href=3D"http://www.team.net/pipermail/shop-talk"; target=3D"_blan=
k">http://www.team.net/pipermail/shop-talk</a> <a href=3D"http://autox.team.=
net/archive" target=3D"_blank">http://autox.team.net/archive</a>

lk/jbach@swiftrecruiters.com" target=3D"_blank">http://autox.team.net/mailma=
n/options/shop-talk/jbach@swiftrecruiters.com</a>

</pre>
    </blockquote>
  </div>
_______________________________________________<br>
<br>
<a href=3D"mailto:Shop-talk@autox.team.net"; target=3D"_blank">Shop-talk@auto=
x.team.net</a><br>
t=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/pipermail/shop-talk"; rel=3D"noreferr=
er" target=3D"_blank">http://www.team.net/pipermail/shop-talk</a> <a href=3D=
"http://autox.team.net/archive"; rel=3D"noreferrer" target=3D"_blank">http://=
autox.team.net/archive</a><br>
<br>
lk/ejrussell61@gmail.com" rel=3D"noreferrer" target=3D"_blank">http://autox.=
team.net/mailman/options/shop-talk/ejrussell61@gmail.com</a><br>
<br>
</blockquote></div><br clear=3D"all"><div><br></div>-- <br><div dir=3D"ltr">=
<div dir=3D"ltr">Eric Russell<div>Mebane, NC</div></div></div>
</blockquote></div><br clear=3D"all"><div><br></div>-- <br><div dir=3D"ltr">=
<div dir=3D"ltr">Eric Russell<div>Mebane, NC</div></div></div>
</blockquote></div><br clear=3D"all"><div><br></div>-- <br><div dir=3D"ltr" c=
lass=3D"gmail_signature"><div dir=3D"ltr">Eric Russell<div>Mebane, NC</div><=
/div></div>
<span>_______________________________________________</span><br><span></span=
><br><span>Shop-talk@autox.team.net</span><br><span>Donate: http://www.team.=
net/donate.html</span><br><span>Suggested annual donation &nbsp;$12.96</span=
><br><span>Archive: http://www.team.net/pipermail/shop-talk http://autox.tea=
m.net/archive</span><br><span></span><br><span>Unsubscribe/Manage: http://au=
tox.team.net/mailman/options/shop-talk/dmscheidt@gmail.com</span><br><span><=
/span><br></div></blockquote></body></html>=

--Apple-Mail-A39B3976-552B-497F-9D69-9662CB993C37--

--===============6562971907655676943==
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________

Shop-talk@autox.team.net
Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/archive



--===============6562971907655676943==--

<Prev in Thread] Current Thread [Next in Thread>