tekmar 511 Programmable Thermostat User Manuals - Manual (Page 11)

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Backlight
The thermostat’s display has a backlight. By default the backlight is temporarily On.
You can also set the backlight to be either permanently On or permanently Off.
Cleaning the Thermostat
Clean the thermostat’s exterior using a damp cloth. Moisten the cloth with water
and wring out prior to wiping the thermostat. Do not use solvents or cleaning
solutions.
Error Messages
When the thermostat encounters a problem, a Warning Symbol appears and a
description of the error message is displayed. To troubleshoot how to correct the
error, please refer to the Data Brochure or contact a qualified installer.
An electronic version of the Data Brochure D 510 is available on the tekmar website:
www.tekmarcontrols.com.
Warning Symbol
To change the backlight setting:
1. Use the Menu button to select the menu.
2. Use the Item button to select LITE.
3. Use the or button to select a setting:
OFF Backlight stays off.
ON Tmpy (Temporary): Backlight stays on for 30
seconds after a button is pressed.
ON: Backlight stays on permanently.
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