Specifications

31
© 2012 Emerson Climate Technologies, Inc.
Printed in the U.S.A.
AE8-1368 R2
Fault Temperature Probe
The temperature probe is an “NTC” device. Its resistance increases with decreasing
temperature. This fault is generated by an “open” thermistor circuit, and as such will generate
a reading of a low temperature (-40F or +327F with some versions of control module). This
assessment is only made if the control module temperature is greater than -30F.
Is the discharge temperature
probe properly connected to the
harness, and lubricated with
NyoGel 760G lubricant?
Unplug the
temperature probe
and check the
resistance of the
probe vs the
attached table
Normal Operation
Connect the
harness to the
temperature probe
Yes
No
Does the probe indicate
the correct resistance?
(open resistance exceeds
2MΩ)
Replace
temperature probe
No
Yes
Temporarily “short”
across the sensor
connectors on the
harness. Do not
distort the connectors
when doing this.
Does the error code remain?
(a shorted probe will give a
reading of 327F)
Opened harness
circuit. Verify that
the harness is fully
engaged to the low
voltage connector
at the control
module. Perform
continuity check of
harness to isolate
fault. Refer to the
wiring diagram in
the appendix.
Intermittent probe
failure, loose
connector pins or
intermittent
harness failure
No
Yes
Low Voltage Connector
6.11
Temperature probe connections should be coated with
NyoGel 760G lubricant. Kit # 9170001-00
Temperature
60F
70F
80F
90F
Resistance
141K ohms
107K ohms
82K ohms
66K ohms