I attempted to test run my new brew stand this evening and ran into an issue right off the bat. Powered on my control panel and went to set my HLT and Mash temp to fire up the burners. I hit "set" and it shows SP, I hit "set" again to change the temperature setting and the digital read out would only go to 150. Am I somehow changing another parameter and not the actual SP? According to the instruction sheet that came with the controller it says you must hold the set button for 8 seconds to change the other pre set parameters which I did not do. Can anyone shed some light on this? I didn't even have that many beers tonight!