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Symptom/action troubleshooting
BMTK-SVN01D-EN 61
®
Tracker controller displays
the wrong date.
• Verify if the electrical power has been off for more than 1 week (the actual time
varies depending on storage temperature).
• Verify that jumper pin J1 on the main module is in place.
Note: The controller default date (displayed when the controller is initially powered up or whenever
the super capacitor is unable to back up the controller time) is January 1, 2000.
Outdoor air temperature is
not reading correctly.
• Measure the resistance of the outdoor air temperature thermistor (preferably at
the termination module). Check the measurement using Table 19 on page 71.
• Inspect the location of the outdoor air temperature sensor. It must not be
mounted in the sunlight or near another source of radiant heat.
Note: The outdoor air temperature sensor can be used for this purpose only.
Ethernet link is not detected
(on the Ethernet board, the
left LED is off)
• Verify that the correct type of cable is used. When communicating over a network,
use a patch cable. When communicating to an Ethernet card on a lap top com-
puter, use a crossover cable.
Table 14. Symptom/action troubleshooting (Continued)
Symptom Action