If you find that your Signature Series heat press is having trouble reaching your desired temperature, the back-end heat delay setting might need to be adjusted. This setting can become inaccurate if the temperature scale has ever been changed from °F to °C. To access this setting make sure the heat press is turned on and open. Press the OK button for 10 seconds. You will see the P-1 function appear on screen. Press the OK button again and you will see the P-2 function appear. If the P-2 value is set to anything higher than 001, then use the down arrow key to set this value to 001. Once the heat delay setting is adjusted, press the OK button to return to the real time temperature. Your heat press should now reach your desired temperature.