WARNING • Exercise extreme caution when servicing electrical equipment. • Disconnect the dispenser from the power source when servicing, except when electrical tests are specified. • Follow recommended service procedures • Replace all protective shields or safety notices Problem Equipment will not operate. Probable Cause 1. No power or incorrect voltage 2. Safety overflow switch Remedy (A) Check the terminal block for the correct voltage. It should be: a.) 100 to 120 volts ac across the black an

Access will also be needed to the temperature sensor, overflow tube temperature sensor, and liquid level probe located on the tank lid and to the triac assembly located beneath the tank. .0000 P1772 FIG. 1 ELECTRONIC CONTROL P1773 FIG. 2 TRIAC General: This system controls the liquid level and water temperature of the dispenser. These two functions act independently of each other and should be tested separately. Liquid Level Control Flow Charts 10420 011599 SERVICE (cont.) Electronic Controls (c

This will take approximately 7 minutes. 6. The water will heat to the factory default setting of 200° F (93° C) for most dispensers, and 90° F (32° C) for other dispensers. 7. Refer to PROGRAMMING to set the tank temperature, ready temperature, and dispense volumes. DRAINING THE DISPENSER CAUTION - The dispenser must be disconnected from the power source throughout these steps. 1. Disconnect the dispenser from the power source. 2. Shut-off and disconnect the incoming water supply 3. Remove the 4

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