SERVICE (cont.)
Electronic Controls (cont.)
11. Disconnect the dispenser from the power source.
If voltage was present as described, return the new triac assembly to
12.Replace the triac assembly.
13.Check the voltage across the tank heater terminals with a voltmeter. Connect the dispenser to the power source. The indication must be 200 to 240 volts ac for 200 to 240 volt models while the red indicator on the circuit board is on or blinking.
14.Disconnect the dispenser from the power source.
If voltage was present as described, the temperature control of the system is operating properly. Return the new electronic control assembly and temperature sensor to
5.Install the new temperature sensor into the grom- met on the tank lid. Route the wires to the location of the new electronic control assembly.
6.Attach the temperature sensor, overflow tube temperature sensor, and indicator wires to the electronic control assembly.
7.Fasten the new electronic control assembly to its bracket.
8.Reconnect the wires.
9.Review the initial
BLU to Triac Assy
TAN to Triac Assy
BLU to Triac Assy
TAN to Triac Assy
PNK to Liquid Level Probe
RED to Terminal block
RED to Solenoid
BLK to Overflow Safety Switch
GRN to Chassis Ground
WHI/BLU to Solenoid
Electronic Control Removal and Replacement
FIG. 2 WIRING CONNECTIONS
P1992
NOTE - Each electronic control assembly is calibrated to a temperature sensor probe. Both components MUST be replaced as a set.
1.Remove all wires from the electronic control as- sembly terminals.
2.Remove the two
3.Disconnect the temperature sensor, overflow tube temperature sensor, and indicator wires from the left side of the electronic control assembly board.
4.Remove the temperature sensor from the grommet in the tank lid.
WHI & WHI to |
|
Temperature Sensor |
|
PNK & GRY to | P1 |
| |
Heater Indicator | P2 |
Refill Indicator | |
Power Indicator |
|
Ready Indicator |
|
GRY & GRY |
|
to Thermistor | P101 |
| P1992 |
FIG. 3 WIRING CONNECTIONS | |
13 | 10889 091599 |
| |
