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Chapter 4
Troubleshooting and Maintenance
Vantage Pro2 Troubleshooting Guide
While your Vantage Pro2 weather station is designed to provide years of
trouble-free operation, occasional problems may arise. If you are having a
problem with your station, please consult this troubleshooting guide before
calling Davis technical support. You may be able to quickly solve the
problem yourself. If you need help, please see “One Year Limited War-
ranty” on page 42.
Note: Refer to the ISS Installation Manual for additional troubleshooting information.
TABLE 4-1: TROUBLESHOOTING GUIDE
Problem Solution
Display
Display is blank
Unit is not receiving power. Check the power adapter connections
and/or replace batteries.
Display shows dashes in
place of weather data
• ISS not plugged in (cabled station). See ISS manual.
• Sensors not transmitting (wireless station). See ISS (or other
transmitter) manual.
• Console not receiving (wireless station) - See “Troubleshooting
Reception Problems” on page 38.
• A reading has exceeded the limits indicated in the specifica-
tions table.
• Calibration numbers may be causing readings to exceed dis-
play limits. Check calibration number and adjust if necessary.
Console is sluggish or does
not work at low temperatures
The console and display may not work below 32º F (0º C). Use an
External Temperature sensor in low-temperature locations or install
the console indoors.
Display “locks up”
If the console “locks up”, reset the console by removing AC and bat-
tery power then restoring power. If this occurs frequently in an AC-
powered console, plug the AC power-adapter into a surge suppres-
sor.
Humidity
Inside humidity seems too
high or too low
Make sure the console is not near a humidifier or de-humidifier.
Check calibration number and adjust if necessary. If inside humidity
is low, and inside temperature is too high, see “inside temp” below.
Also make sure the console backlight is not on.
Wind Speed
Wind speed reading seems
too high or too low.
For low readings, remove the wind cups and check for friction
sources. Check the anemometer location. Is it sheltered from the
wind? See ISS manual for additional wind speed troubleshooting
information.
Wind speed reads 0 either all
the time or intermittently
The problem may be with the anemometer. Test anemometer by
spinning wind cups. Check fields one-b and two-b on diagnostic
screen and call technical support.