Re: Central Vac overload

[jamesgangnc <jamesgangnc@xxxxxxxxx>]

On Mar 30, 7:23=A0am, "Robert Green" <robert_green1...@xxxxxxxxx> wrote:
> Some of you might remember my question about building a silencing cabinet
> for a central vac. =A0Well, it worked, but too well. =A0The problem is no=
w that
> if something gets stuck in the hose, we can no longer hear the immediate
> increase in the motor load the way we used to. =A0On occasion, the unit's
> motor even shuts down from the overload.
>
> Does anyone have any ideas how to detect the "laboring" of the motor so I
> can sound a chime or some other alarm when something clogs the pope - I m=
ean
> pipe - the Pope has enough problems of his own. =A0(-:
>
> I am going to try a test today with my Kill-0-Watt meter to see if there'=
s a
> substantial increase in current draw. =A0I might be able to use a current
> sensor to detect the upswing and sound a chime or some other kind of
> warning. =A0I don't want to shorten the life of the motor by letting the
> thermal overload shut it down after it has overheated.
>
> Thanks in advance
>
> --
> Bobby G.
>
> Crossposted to alt.home.repair;comp.home.automation, follow up in AHR,
> please!

Is it possible that your "silensing" cabinet is restricting the
cooling air to the top of the motor?  Wasn't your central vac in the
garage?  Do you really need a silencing cabinet?

You're right about the overload safety switch.  It is not designed to
operate repeatedly.