La Crosse Technology, Ltd.
Page 3
To double-check the accuracy of the thermometer, remove it from the mounting bracket
(leave the bracket attached to the window), bring it indoors for two hours, and set it next to
the thermostat.
If it is within 2-3 degrees, the thermometer is working correctly. If the temperature
gap is greater than 3 degrees after 2 hours, the window thermometer may be defective.
Is the thermometer mounted in a shady location?
Is the temperature incorrect at night as well as during the day?
Thermometer is Dim.
Most thermometers have a gray background. Place the thermometer at eye level. Is it still
dim?
Thermometers that sit in the sunlight can develop a cloudy film over time.
This is generally a power related issue.
Batteries
may be overpowered or underpowered. Remove batteries from Wireless
Thermometer.
Press any button 20 times. Leave the Thermometer unpowered for 1-2 hours.
Install fresh alkaline batteries with correct polarity.
Thermometer has a Distorted Display.
On a brand new Wireless Thermometer, check for thin plastic films of printed scratch guard
that may be on the screen of the wireless thermometer. This thin piece of plastic has printed
numbers for store displays.
With all power removed, the thermometer should be blank.
If numbers still appear, please check for scratch guard.
Check that the batteries are installed correctly.
Batteries
may be overpowered or underpowered.
Remove batteries from Wireless Thermometer.
Press any button 20 times. Leave the batteries out of the display for 2 hours.
Insert fresh batteries into the wireless thermometer.
Thermometer has missing segments.
This is generally a power related issue.
Check that the batteries are installed correctly.
Batteries
may be overpowered or underpowered.
Remove batteries from wireless thermometer.
Press any button 20 times. Leave the batteries out of the display for 2 hours.
Insert fresh batteries into the wireless thermometer.
Thermometer Display appears Frozen.
On a brand new Wireless Thermometer, check for thin plastic films of printed scratch guard
that may be on the screen of the Wireless Thermometer. This thin piece of plastic has
printed numbers for store displays. This can make the thermometer display
appear “frozen”.
With all power removed, the thermometer should be blank.
If numbers still appear, please check for scratch guard.
This is generally a power related issue.
Check that the batteries are installed correctly.
Batteries
may be overpowered or underpowered.
Remove batteries from Wireless Thermometer.
Press any button 20 times. Leave the batteries out of the display for 2 hours.
Insert fresh batteries into the wireless thermometer.
