
4. Check the voltage across the blue/black wire on the thermostat and the white or red wire at the terminal block with a voltmeter when the thermostat is turned “ON” (fully clockwise). Connect the dispenser to the power source. The indication must be as described in step 2. Voltage must not be indicated when the thermostat is turned “OFF” (fully counterclockwise). 5. Disconnect the dispenser from the power source. If voltage is present as described, the thermostat is operating properly. If volta