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La Crosse Technology, Ltd.          www.lacrossetechnology.com/support 

Page 4 

 

 

 

Batteries 

often resolve the connection. 

 

Distance/Resistance 

can cause a loss of connection between the outdoor sensor and the 

weather station.  

 

Turn the weather station 90 degrees towards the outdoor sensor to provide better reception. 
This allows more antenna surface to face the outdoor sensor signal.  

 

Try the 

quick connect 

o

factory restart.

 

 

Power Requirements 

 

 

2-AA

 batteries 

power the outdoor sensor.  

 

We recommend Alkaline batteries for the outdoor sensor. 

 

You may choose to use Lithium batteries for temperatures below -20°F/-28.8°C. 

 

Inaccurate Outdoor Temperature Reading 

 

Explanation: 

High outdoor temperature readings are generally a location issue. Low outdoor 

temperature readings are power related or sensors going bad. 
 

 

The outdoor sensor reads the environment where it is mounted. When mounted inside the 
home, it will read inside temperature/humidity. 

 

When the outdoor sensor reads high during the day, but not at night, it is a 

positioning

 

problem. 

 

Look for heat sources such as sunlight, door, or window frames, or reflected heat. 

 
Side-by-side test:

 Place the outdoor sensor right next to the weather station for 2 hours.  

 

Compare indoor and outdoor temperatures. The temperatures should be within 4 degrees to 
be within tolerance.  

 

If the outdoor sensor reads correctly when next to the weather station, try a different location 
outside.  
 

Intermittent Outdoor Temperature 

 

Explanation: 

Intermittent problems are the hardest to resolve. RF (radio frequency) communication 

may come and go occasionally. This can be normal in some environments (e.g., moist climates). If 
the outdoor sensor signal is lost, please wait 2-4 hours for the signal to reconnect on its own.  
 

 

Move the outdoor sensor to a closer location. 

 

Distance/Resistance 

can cause loss of outdoor sensor signal.  

 

Check 

Batteries

. 

 

Freezer test:

 Confirm the weather station is reading the correct outdoor sensor (not a neighbor’s 

sensor). Place the outdoor sensor in the freezer for an hour and watch the temperature drop on 
the weather station. 

 
Indoor distance test:

 Please complete the 

Restart 

with the outdoor sensor and weather station 5-

10 feet apart and inside to establish a strong connection.  

 

After 15 minutes, if there is a reading in the outdoor temperature area, move the outdoor 
sensor to another room with one wall between the outdoor sensor and the weather station.  

 

Observe to see if the temperature remains on consistently for 1 hour.  

Summary of Contents for WW85777v2

Page 1: ...ding 4 Intermittent Outdoor Temperature 4 Outdoor Temperature is stuck or HH H LL L 5 Outdoor sensor drains batteries quickly 5 Outdoor Humidity goes to dashes when the temperature is cold 5 The outdo...

Page 2: ...echnology has improved and batteries will maintain voltage longer in storage However the environment the batteries reside in for 10 years can deplete the power Use Alkaline or Lithium batteries in the...

Page 3: ...eries This is not the same as a thorough factory reset 1 Bring the outdoor sensor and weather station together inside and place the units 5 10 feet apart with nothing between them 2 Hold the TEMP butt...

Page 4: ...e outdoor sensor right next to the weather station for 2 hours Compare indoor and outdoor temperatures The temperatures should be within 4 degrees to be within tolerance If the outdoor sensor reads co...

Page 5: ...s over 24 months when using reputable battery brands for both Alkaline and Lithium batteries Outdoor Humidity goes to dashes when the temperature is cold The outdoor temperature humidity sensor design...

Page 6: ...in humidity since 8 00 At 11 30 the trend arrows will reflect changes in humidity since 8 30 etc Up Arrow The temperature has risen in the past 3 hours The humidity has risen in the past 3 hours Right...

Page 7: ...greenhouse basement etc Press and release the PLUS button to view channels 1 2 or 3 on the display when multiple transmitters are used Note You cannot change channels if only one transmitter is connec...

Page 8: ...r is over 300 feet 91 meters Obstacles such as walls windows stucco concrete and large metal objects can reduce the range Do not mount near electrical wires transmitting antennas or other items that w...

Page 9: ...the outdoor sensor on a metal fence This significantly reduces the effective range Interference Consider items in the signal path between the outdoor sensor and the weather station Sometimes a simple...

Page 10: ...Weather Station Power Requirements This weather station is powered by a 5 volt AC power adapter Alternatively optional 3 AAA alkaline batteries may be used 12 Hour or 24 Hour time format Time can dis...

Page 11: ...nerally a power related issue Check that the AC power cord is inserted into a working outlet Batteries may be overpowered or underpowered Remove batteries from the weather station Press any button 20...

Page 12: ...S buttons 1 Hold the TIME SET button for five seconds BEEP and the word ON will show Press and release the PLUS and MINUS buttons to turn this to of the beep when a button is pressed Confirm with the...

Page 13: ...humidity is at a comfortable or uncomfortable level The bar over the chart will move and change colors to indicate the humidity level Forecast Icons Inaccurate THIS WEATHER STATION LEARNS OVER TIME Pl...

Page 14: ...h AC adapter only to determine if batteries were an issue The weather station has missing segments Explanation When parts of numbers letters or pictures are missing on the display it is often power re...

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