Trouble Shooting from the Display

Problems that may be identified from the display of your programmable thermostat are listed here with suggested resolutions.
 

For more detailed information please refer to the instructions that came with your thermostat.

Those instructions can be viewed in PDF format here.

 

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FROM THE DISPLAY
Model WIN100
Problem Resolution
Display will not change.
  1. Peel protective plastic label from display.
   
Display blurred and unreadable.
  1. Peel protective plastic label from display.
  2. Press the small round inset RESET button behind the door of your unit using a small Philips screw driver. Reconfigure and reprogram.
   
Time alternates with Room temp
  1. This is normal operation which can not be changed.
   
Blank or fading display
  1. Replace its batteries with fresh Duracell® or Energizer® G13A alkaline batteries. Be sure that they are installed with their polarity (+ and -) correct.
  2. Clean battery contacts with a pencil eraser and pry out the spring contact slightly to insure a clean, firm connection.
  3. Press RESET using a small Philips screw driver. Then reconfigure and reprogram.
   
Displays "LO BATT", "REPLACE", or
battery symbol
  1. Replace batteries with fresh G13 size Duracell® or Energizer® alkaline batteries. Be sure that they are installed with their polarity (+ and -) correct.
   
Displays wrong room temperature
  1. See Temperature Regulation
   
You want to change the displayed
temperature scale from °F to °C or
from °C to °F
  1. Rotate the Speed Dial® to "SET WEEKDAY PROGRAM". Press "HOLD" and "NEXT" simultaneously to change the displayed temperature scale. from °F to °C or from °C to °F. Rotate dial back to RUN.
   
You want to change clock format from
12Hr Standard Time to 24Hr Military Time
or from 24Hr Military to 12Hr Standard Time
  1. Most Lux electronic thermostats can display time in 12Hr or 24Hr military time. A jumper or other setting determines format you will see. Refer to your manual to change this setting.
   
Displays wrong day or time
  1. Rotate the Speed Dial ® to "SET DAY/TIME". The day will flash, use UP key to correct day. Press NEXT. The time will flash. Use UP and DOWN keys to go to correct time. Rotate dial back to RUN.
   
Displays no set temperature.
  1. Refer to model specific troubleshooting or your owners manual.
   
Shows "888" on display
  1. Press the small white HW RESET button inside on the rear of the circuit board.
   
Shows "OL"
  1. "OL" means Out of Limits. The sensor is reading outside the thermostats display limit of 32°F to 95°F. When the temperature returns to within these limits the temperature display will reappear. If actual room temp is not outside these limits, there may be a malfunction. Press the small white HW RESET button on the circuit board. Reconfigure and reprogram.
   
Displays "OVERRIDE"
  1. "OVRRIDE" appears on the display when the set temp is raised or lowered from the program temperature. Overrides are terminated at the next scheduled program period when the unit will revert to the program temperature and the "OVRRIDE" will be extinguished.