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» Support LP0511D

Troubleshooting 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.
  • The instruction manual for this model can be viewed in PDF format by clicking here.

Model LP0511D
   
Problem Resolution
Display will not change Peel protective plastic label from display.
Display blurred and unreadable Peel protective plastic label from display.
Press the small round inset RESET button on the front of your unit using a small Philips screw driver.
Blank or fading display Replace thermostat  batteries with fresh AA size Duracell® or Energizer® alkaline batteries. Be sure that they are installed with their polarity (+ and -) correct.
Clean battery contacts with a pencil eraser and pry out the spring contact slightly to insure a clean, firm connection.
Press the small round inset RESET button on the front of your unit using a small Philips screw driver.
Display is locked or will not respond A lock code is needed to unlock this thermostat. To unlock the thermostat with the lock code press the NEXT button down for at least 2 seconds, then enter the code by using the NEXT button to advance to the next digit. Once entered press the NEXT button down until it returns to the default display. To unlock the thermostat without the lock code, press the RESET button. After pressing RESET then within the next 4 seconds press the UP button 3 times then the DOWN button once. This will reset the lock code to 0000.
Displays reads "LO BATT" Replace thermostat  batteries with fresh AA size Duracell® or Energizer® alkaline batteries. Be sure that they are installed with their polarity (+ and -) correct.
Clean battery contacts with a pencil eraser and pry out the spring contact slightly to insure a clean, firm connection.
How do I set my thermostat to act as a manual thermostat? How do I remove the programming? Place jumper JP1 located on the back of the thermostat to the UP position and press the RESET button. This will remove the programming features from your thermostat.
Display reads "OVERRIDE" "Override" 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 "Override" indicator will be extinguished.
Displays wrong room temperature. See Temperature Regulation. 
You want to change the displayed temperature scale from °F to °C  Place jumper JP2 located on the back of the thermostat to the UP position and press the RESET button. This will cause the thermostat to display in ºC.
Shows "8888" on display Place the SET switch to DAY/TIME and set the day and time. 
Shows "HI" or "LO" This means Out of Limit. The sensor is reading outside the thermostats display limit. Room temperature will reappear when the temperature returns to normal range.  If actual room temp is not below freezing or above 99F/32C degrees, there may be a malfunction. Press the HW RESET button on the circuit board to reset. 
For further assistance: Contact your HVAC service company or our Technical Assistance Line if not resolved.
 
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