I have this K-Thermocouple Nozzle Extruder:
http://www.aliexpress.com/snapshot/282581457.html

And this AD 597:
http://reprapworld.com/?products_details&products_id=351&cPath=1616_1652

Following the MARLIN instructions for RAMPS 1.4 here:
http://reprap.org/wiki/ExtThermoCouple_1.0

#define TEMP_SENSOR_0 -1
#define TEMP_0_PIN 3

Gives me the error: “Err: MAXTEMP”
I have a 500W PC Power Supply, 5 pololu shields, (only 1 stepper motor hooked up currently) I can control the steppers and the display works fine with control knob and SD card.
The hot end is not getting hot, but it is probably because of the missing temp reading.
Attached is source code used,

Help! I’m a complete beginner and really appreciate any advice on this.

I will answer this one myself.

The #define TEMP_0_PIN 3 In pins.h was in the wrong multilevel nested if / else statement, so it did not affect my board. My bad.

It now works as a charm with dual hot ends using dual AD597 thermocouples using:
#define TEMP_0_PIN 3 // ANALOG NUMBERING
#define TEMP_1_PIN 4 // ANALOG NUMBERING

Hi

Just to confirm as i'm a newbie to this aswell do i need 2 AD597 for a single extruder of that time for the + and - thermocouple connections?