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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.
• The thermo-hygro sensor reads the environment. When the sensor reads high during the day but not at
night it is a mounting problem.
• Side-by-side test: Bring the thermo-hygro sensor in the house and place it next to the weather station
for 2 hours.
• 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.
• If the sensor reads correctly when next to your weather station then try a different location outside.
• Look for heat sources such as sunlight, door or window frames, or reflected heat.
• Check batteries. Overpowered or underpowered batteries can cause this reading.
• Replace sensor.
• RF (radio frequency) communication may come and go occasionally. This can be normal in some
environments (e.g. moister climates).
• 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.
• RF (radio frequency) communication is not always 100% on.
• Certain temporary conditions can cause it to go out for a time (e.g. 100% humidity).
• IF the signal is lost, the RX will display the LAST DATA recorded from sensor for 10 minutes.
• After that 10 minutes if the signal does not come back then display dashes "--".
• After 30 minutes, start looking for the RF signals automatically.
If a miss happens:
• Hold the SEARCH button for 5 seconds to search for sensor.
Distance/Resistance
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.
• Check batteries. This is our primary warranty issue.
• Test a new set of alkaline batteries. Write down the date of installation and the voltage of the batteries.
• When the batteries fail, please note the date and voltage again. This is helpful in determining the
problem.
• 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.
• Check for leaking batteries, which may damage the sensor.
La Crosse Technology, Ltd.
INACCURATE OUTDOOR TEMPERATURE/HUMIDITY
OUTDOOR READINGS ARE STUCK OR SHOW HI OR LO
INTERMITTENT SENSOR READINGS
SENSOR DRAINS BATTERIES QUICKLY
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