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Page 23
ELECTRONIC CONTROL ASSEMBLY
1. Electronic Control
2. Terminal Block
3. Timer
4. Liquid Level Switch
& Overflow Cup
5. Tank Heater
6. Limit Thermostat
7. Liquid Level Probe
Location:
The electronic control assembly (1) is located
inside the lower left front on the component bracket of
the brewer. Access will also be needed to the tempera-
ture sensor (8), liquid level probe (7) located on the
tank lid and to the triac assembly (15) located beneath
the tank.
General:
This system controls the liquid level and water
temperature of the brewer. These two functions act
independently of each other and should be tested
separately.
BREW START - LOCK
The water must be heated to the preset tempera-
ture indicated by the glowing ready light before a brew
PROBLEM:
LIQUID LEVEL CONTROL SYSTEM DOES NOT REFILL
OVERFLOW CUP FULL
YES
REMOVE POWER
DRAIN CUP
RETRY
NO
DISCONNECT LEVEL PROBE
(4)
(4)
(7)
VOLTAGE PRESENT AT
SOLENOID VALVE
(12)
YES
DOES WATER FLOW
YES
REPLACE PROBE
(7)
NO
NO
REPLACE
SOLENOID VALVE
(12)
REPLACE
CONTROL
ASSEMBLY (1)
Liquid Level Control Test Procedure:
1. Disconnect brewer from the power source.
2. Check the voltage across terminals 3 & 4 of the
electronic control assembly (1) with a voltmeter.
Connect brewer to power source.The indication
must be:
a.)120 volts ac for two wire 120 volt models,208
volts ac for three wire 120/208 volt models and
240 volts ac for three wire 120/240 volt models.
b.) 200 to 240 volts ac for two wire 200 or 240 volt
models.
3. Disconnect brewer from the power source.
If voltage was present as described, proceed to #4.
If voltage was not present as described, refer to the
wiring diagrams and check the brewer wiring harness.
4. Remove the pink wire from terminal 5 of the
electronic control assembly (1).
5. Check the voltage across terminals 1 & 4 of the
electronic control assembly (1) with a voltmeter.
Connect brewer to the power source. The indica-
tion must be:
a.) 120 volts ac for two wire 120 volt models,
three wire 120/208 volt models andr th mode1).YE9J0 -2.4 T2-0.0cycle canionrceitiated.VE POWe