Troubleshooting - Trane TZONE940AC52Z User's Installation Manual

Communicating sensor with display
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3.8 Troubleshooting

Icon
Condition
Indoor temperature sensor
has failed/stopped reporting
Alert
Indoor humidity sensor has
Icon
failed/stopped reporting
One of the keypad segments
is stuck
Hidden
Signal
Solid
Icon
Flashing
Lock
Indicates the screen has been locked by the 950 control. When this lock is present, the sensor will
Icon
not respond to any keypad presses.
NA
No display
20
Troubleshooting Issues
950 Control Displays
An associated SOP.004.00 will
be displayed on the 950 control
An associated SOP.004.03 will
be displayed on the 950 control
NA
NA
NA
After 2 minutes, SOP.004.00 will
be displayed on the 950 control
After 2 minutes, SOP.004.00 will
be displayed on the 950 control
Solution
Use the 950 Diagnostic
screen to troubleshoot alert
Use the 950 Diagnostic
screen to troubleshoot alert
Replace the sensor
Normal Operation
Sensor has not been
discovered by 950 control
Indicates a loss of
communications
24VAC Power is lost on the
940 Sensor

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