Spartan SP-600F

[sentry70@xxxxxxxxxxx]

My father has an old Spartan SP-600F.  The neighbors have complained
that when he was on vacation the alarm sounded for 20 minutes before
the siren went off.  I checked the "Bell Shut Off Time" in progrom
location 88 and it is set to "3" which should translate to 6 minutes.
We tried a number of different settings but the minimum time we got the
siren down to was 14 minutes (We used a VOM to test the siren, we
didn't disturb the neighbors).

Any one have any ideas?  Should we just spring for a new box?

Thanks.