La Crosse Technology, Ltd.
Page 3
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Remove the batteries from the sensor for 2 minutes. Replace the batteries in the Thermohygro sensor
and hold the SEARCH button for five seconds. Wait 10 minutes. If the unit does not receive a reading
from the sensor, please try the factory reset.
INACCURATE OUTDOOR TEMPERATURE/HUMIDITY
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The thermo-hygro sensor reads the environment. When the sensor reads high during the day but not at
night it is a mounting problem.
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Side-by-side test: Bring the thermo-hygro sensor in the house and place it next to the weather station
for 2 hours.
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Compare indoor and outdoor temperature. The temperatures should be within 4 degrees to be within
tolerance. The humidity should be within 14% to be within tolerance.
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If the sensor reads correctly when next to your weather station then try a different location outside.
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Look for heat sources such as sunlight, door or window frames, or reflected heat.
OUTDOOR READINGS ARE STUCK OR SHOW HI OR LO
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Check batteries. Overpowered or underpowered batteries can cause this reading.
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Replace sensor.
INTERMITTENT SENSOR READINGS
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RF (radio frequency) communication may come and go occasionally. This can be normal in some
environments (e.g. moister climates).
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If a sensor goes out, please wait 2-4 hours for it to reconnect on its own. Please be patience – these
stations can reconnect on, after many hours out.
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RF (radio frequency) communication is not always 100% on.
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Certain temporary conditions can cause it to go out for a time (e.g. 100% humidity).
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IF the signal is lost, the RX will display the LAST DATA recorded from sensor for 10 minutes.
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After that 10 minutes if the signal does not come back then display dashes "--".
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After 30 minutes, start looking for the RF signals automatically.
If a miss happens:
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Hold the SEARCH button for 5 seconds to search for sensor.
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can cause loss of sensor signal. Avoid having more than one wall, window, tree
etc., between the display and the sensor. UV coated windows may actually reflect the signal. Stucco
walls will absorb the signal.
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Check
. This is our primary warranty issue.
SENSOR DRAINS BATTERIES QUICKLY
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Test a new set of alkaline batteries. Write down the date of installation and the voltage of the batteries.
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When the batteries fail, please note the date and voltage again. This is helpful in determining the
problem.
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Check the distance and resistance between the sensor and your weather station. Sensor at the end of
the range may work while batteries are fresh but not after they drain a bit.
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Check for leaking batteries, which may damage the sensor.
