How do I change my luxpro psd111 thermostat to display temperature back to farenheit from Celsius?

SOURCE: cant change the inside temp

Just hold down the AMB button for maybe 15 seconds, then hold the down temp arrow until it changes. Solution is in the user manual.

SOURCE: how do i reset my temperature gauge from celsius to farenheit? Where do I refill my rear windshied washer?

hold ambient button and temp down button at the sametime till it resets

SOURCE: How do you change the tempature reading for the

You can switch the temperature mode between Fahrenheit to Celsius as follows:
While depressing the AUTO button, depress the OFF button for 3 seconds or more. The display will change from Fahrenheit to Celsius, or from Celsius to Fahrenheit.

SOURCE: 2001 land rover discovery change air conditioner

To change the temperature reading from C to F (or vice versa), press and hold the recirculation button, then press the off button holding the switch down for 3 seconds or more until an audible beep is emitted. If the battery is disconnected and then reconnected, the temperature reading will revert to C. Turning the ignition on/off will not change the customer's set preference.
(See http://www.discotech.info/index.php?title=Climate_Control for more customer configuration options for the climate control)

SOURCE: how do i change my ambient temperature display

Press and hold the power button on the radio, while holding power down press media, let go of both... it should change.