Electronic Controls (cont.)
7.Reconnect the pink wire to terminal 5 of the elec- tronic control assembly.
8.Loosen the compression fitting, remove the probe from the tank lid, and inspect it for mineral depos- its. Replace it if necessary. Keep the exposed ends of the probe away from any metal surface of the dispenser.
9.Check the voltage across terminals 1 & 4 of the elec- tronic control assembly with a voltmeter. Connect the dispenser to the power source. The indication must be:
a.) 100 to 120 volts ac for 100 to 120 volt models or
b.) 200 to 240 volts ac for 200 to 240 volt models or
c.) 230 volts ac for 230 volt models after a delay of approximately 5 seconds.
10.Touch the screw head end of the probe to the dis- penser housing. The indication must be 0.
11.Move the probe away from the dispenser housing. The indication must again be:
a.) 100 to 120 volts ac for 100 to 120 volt models or
b.) 200 to 240 volts ac for 200 to 240 volt models or
c.) 230 volts ac for 230 volt models after a delay of approximately 5 seconds.
12.Disconnect the dispenser from the power source.
Temperature Control Flow Charts (cont.)
If voltage was present as described, reinstall the probe, the sensing function of the system is operating properly.
H5X THERMOSTAT
PROBLEM: Boils Excessively - Fills Cup
If voltage was not present as described, check the pink probe wire and the green ground wire for continuity and/or replace the probe.
Temperature Control Test Procedure
1.Disconnect the dispenser from the power source.
2.Check the voltage across terminals 3 & 4 of the electronic control circuit board with a voltmeter. Connect the dispenser to the power source.The indication must be:
a.) 100 to 120 volts ac for 100 to 120 volt models or
b.) 200 to 240 volts ac for 200 to 240 volt models or
c.) 230 volts ac for 230 volt models.
3.Disconnect the dispenser from the power source.
4.Check the voltage across the tank heater terminals with a voltmeter. Connect the dispenser to the power source. The indication must be:
a.) 100 to 120 volts ac for 100 to 120 volt models or
b.) 200 to 240 volts ac for 200 to 240 volt models or
c.) 230 volts ac for 230 volt models.
5.Disconnect the dispenser from the power source.
H5E THERMOSTAT
PROBLEM: Boils
Drain cup
Retry
Red Light On While | Yes | |
Boiling |
| |
? |
| |
| No |
|
|
| |
|
|
|
Replace Steam Sensor
Drain cup
Retry
Red Light On While | Yes | |
Boiling |
| |
? |
| |
| No |
|
|
| |
Replace Control Assembly
Disconnect Blue Wire From
Control Board Pin 7
Retry
Still Boiling
?
No
Finished
Yes
Replace Control Assembly
Disconnect Blue Wire From
Control Board Pin 7
Retry
Still Boiling | Yes | |
? |
| |
| No |
|
|
| |
|
|
|
Replace Triac Assembly
Check For Split
Tank Heater
Still Boiling | Yes | |
? |
| |
| No |
|
|
| |
|
|
|
Replace Triac Assembly
Check For Split
Tank Heater
Replace Control Board
Replace Control Board
10 | 42311 071310 |
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