Printer changing temperature after selecting file I have just got a Monoprice Maker Select 3d printer (which is really just a Wanhao Duplicator i3). 

I want to print a model that came on the included SD card (1.gcode) with ABS filament. I first press "Preheat ABS" and wait for the display to show the correct temperatures, 245°C for the extruder and 90°C for the print bed. Then, I mount the SD card and select the file to print. 

However, once I do that, the "goal" temperatures change to 195°C for the extruder and 50°C for the print bed, and the temperatures reported by the printer gradually go down as the printer waits for it to match the "goal" temperature. This results in a failed print, with the filament sticking to the extruder in a clump. 

What is going on here? I am trying PLA with the same file, and it seems to work fine, although the temperature change still occurs.
The demo files are gcode files generated for use with the sample PLA that comes with the printer. If you want to print it with ABS select the file and set the temperature manually afterwards.