ATWOOD FURNACE making noise like a loud compressor

[dave silva]

I quarantined in the GMC for a few days and ran all the systems. Everything worked great. My quarantine ended about the time i ran out of propane.

I did not shut off the furnace but i figured if it tried ot light it would just give up when it detected no LP.

So today it came on and sounded like a very loud compressor. It went on for several minutes before i investigated and cut power to the 12v power
supply (battery is dead)

There's just the burner, the blower and some switches, i cannot imagine what is in that furnace capable of making such a noise.
--
Dave & Ellen Silva

1972 Revcon Olds 455, toro drive train. All Stock

 

[Bruce Hart]

Most likely your fan motor needs the bearings lubricated.

On Sat, Dec 5, 2020 at 3:05 PM dave silva via Gmclist <

> I quarantined in the GMC for a few days and ran all the systems.
> Everything worked great. My quarantine ended about the time i ran out of
> propane.
>
>
> I did not shut off the furnace but i figured if it tried ot light it would
> just give up when it detected no LP.
>
> So today it came on and sounded like a very loud compressor. It went on
> for several minutes before i investigated and cut power to the 12v power
> supply (battery is dead)
>
> There's just the burner, the blower and some switches, i cannot imagine
> what is in that furnace capable of making such a noise.
> --
> Dave & Ellen Silva
>
> 1972 Revcon Olds 455, toro drive train. All Stock
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class

 

[jim kanomata1]

Just because it runs out of fuel , it will not shut off .

On Sat, Dec 5, 2020 at 4:12 PM Bruce Hart via Gmclist <

> Most likely your fan motor needs the bearings lubricated.
>
> On Sat, Dec 5, 2020 at 3:05 PM dave silva via Gmclist <

>
> > I quarantined in the GMC for a few days and ran all the systems.
> > Everything worked great. My quarantine ended about the time i ran out of
> > propane.
> >
> >
> > I did not shut off the furnace but i figured if it tried ot light it
> would
> > just give up when it detected no LP.
> >
> > So today it came on and sounded like a very loud compressor. It went on
> > for several minutes before i investigated and cut power to the 12v power
> > supply (battery is dead)
> >
> > There's just the burner, the blower and some switches, i cannot imagine
> > what is in that furnace capable of making such a noise.
> > --
> > Dave & Ellen Silva
> >
> > 1972 Revcon Olds 455, toro drive train. All Stock
> >
> >
> >
> > _______________________________________________
> > GMCnet mailing list
> > Unsubscribe or Change List Options:
> > http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
> >
>
>
> --
> Bruce Hart
> 1976 Palm Beach
> Milliken, Co
> GMC=Got More Class
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502

 

[dave silva]

I'll just chalk it up to "weird" and move on.

I connected LP to it and it lit without drama or noise.

--
Dave & Ellen Silva

1972 Revcon Olds 455, toro drive train. All Stock