by Forum Tech » Tue Jan 12, 2010 5:00 pm
"Robert,Be sure that the correct mode is programmed in step one. Mode 2 must be selected for the t'stat to operate correctly.Look for a flashing dot at the top of the display, between the right two digits. This indicates that the thermostat is calling for cooling. If the sensor temperature is below the setpoint, it should be flashing, and there should be continuity between terminals one and two on the Carel.What are the values you selected for St1 and P1?Forum Tech"