Specifications

29
© 2012 Emerson Climate Technologies, Inc.
Printed in the U.S.A.
AE8-1368 R2
Verify if the CT connector is
connected to the sensor module
No
Connection Lost CT to sensor
No
Is there continuity between pin
3 & 4 of the Current Sensing
connector? The resistance
should be less
than 1
ohm
Connect the 4 pin
Current Sensor
connector into the
sensor module
Replace the Current
Sensing Module
CT is the Current Sensing Transducer, located in
the terminal box. It is the round “toroid” that one
of the motor power leads passes through. This
code is generated when it is unplugged from the
Sensor Module, or the motor power lead isn’t
passing through the CT.
When the compressor is
running, are Amps and Volts
correctly displayed on the ISD:
Details / Windings tab?
Inspect the wire harness
connector to assure that
the pins are fully
engaged. Replace the
CT if harness repair is
not possible.
Yes
Yes
Faulty sensor
module or
connector mis-
installed
No
Current Sensing Module connection
to Sensor Module
Current Sensing Module
Resistance across these pins is less than
1 ohm
6.9
Is the motor power
lead passing through
the CT?
The motor power lead
from the terminal with
the black voltage
sensing lead must
pass through the CT
Yes
No
Yes