“Attractive, feature rich, easy to install and the price was right! On new installations, follow the guidelines listed below. Unable to unlock using unlock sequence from manual. Any secrets?the unlock method is up,down,next,hold,rotary dial, software reset … This is extremely beneficial in situations where you do not want other people to change the settings on your thermostat. Padlock on screen should now be in “open” position. Take the front of the thermostat … Press this button down for 3 seconds. I'm here to answer your HVAC question to your satisfaction! Hi, I'm Brian. The manual says to press up, down, next, hold, rotary … LUX PRO PSP511Ca & PSP511LCa PROGRAMMABLE THERMOSTAT AIR FILTER MONITOR After a certain number of days of run time, the t-stat will automatically remind you to change your air … Press the 'Hold' button, and then release it. Unable to unlock using unlock sequence from manual. From the LUX trouble shooting guide: Display is locked or will not respond A lock code is needed to unlock this thermostat. This stands for Hardware Reset. Press and release the 'Next' button three times, and then press and release the 'Hold' button to lock the thermostat … The thermostat is unlocked. My luxpro psp511CA thermostat was locked by spouse. Any secrets?the unlock method is up,down,next,hold,rotary dial, … Unlock Luxpro PSP511CA thermostat: Manual instructions unclear I am trying to unlock my luxpro PSP511Ca thermostat. A Trane thermostat has the ability to have the keypad locked. View and Download Lux Products PSP511LCa installation and operating instructions online. I did not want to go spend $300 for a smart WiFi thermostat. How to Unlock a Lux 1500 Thermostat Press and release the 'Next' button, in the center of the thermostat's programming panel, three times. If your thermostat is behaving erratically or something strange is in the display, hitting “Reset” buttons can often correct the problem. This will unlock the thermostat … Overall, the youtube videos made the whole setup seamless, and the … To unlock the thermostat … My luxpro psp511CA thermostat was locked by spouse. Hardware Reset: Try this first since it does not erase anything. Reset”. PSP511LCa thermostat pdf manual download. Take the front half of the thermostat off the wall. Also for: Psp511ca. THERMOSTAT LOCATION On replacement installations, mount the new thermostat in place of the old one unless the conditions listed below suggest otherwise. After being locked for a period of time, you may have forgotten how to unlock the thermostat … Locate the thermostat … On the back of the thermostat, identify the small white button on the circuit board labeled “H.W.