"Oren" wrote in message
...
On Sat, 1 Jul 2017 07:08:38 -0400, "Sherlock.Homes"
wrote:

Seems to be 120vac from red to ground and 120vac from black to ground but
no
voltage between red and black, which should be 240vac. Reading was taken
at
the external dissconnect. What might cause this?

Thanks,
S


Does this disconnect have fuses? Test the fuses individualy. They
burn out starting near the center.

Did that, About 1 ohm for the both of them. I think there's an intermittent
open in the cable in the conduit from the breaker panel to the outside
disconnect. Decided that it needed a recharge anyway so I'm calling the
HVAC folks tomorrow.

S