Operating instructions

PROGRAMMING - DIAGNOSTIC TEST (continued)
If any one of the LEDs does not
turn on, if more than one LED
turns on at any given time
during this test, or if the LEDs
do not turn on in the correct
order then the controller has
failed the test.
If a -Valve Fault" message
appears on the display during
this test, the controller fails the
test.
LED Test
Display will read: "Testing LEDs"
1. The top left LED should turn on first. After one second, the
LED immediately right of it will turn on and the top left LED
will turn off. Observe that the LEDs turn on in order - moving
from left to right along the top row, then left to right along the
bottom row. Ensure that only one LED is on at a time and
that each of the eleven LEDs turn on.
2. Also ensure that the color of each LED is correct:
3. Press the POWER key to advance to the next test.
Valves/Heater Test
The display will read: "Valvc I Off"
1. Verify that all the valves are off, and that the heater is off.
Valve I corresponds to the inlet valve.
2. Press the POWER key and the inlet valve should turn on with
the message: "Valve I On"
3. Press the POWER key to advance to Valve 2 (left dump
valve). Continue testing components. Each of the following
components should turn on then off in the following order:
Val ve I In fl o w
Valve 2 Left Brew
Valve 3 Right Brew
Valve 4 Left Bypass
Valve 5 Right Bypass
Heater Heater - DO NOT leave on for an
extended period of time.
L Solenoid Lock Out Solenoid (optional)
R Sol e noi d Lock Out Sole noid (o ptional )
4. If each one of the components turn on in order, and if only
one of them is on at any time, then the controller has passed
this test. In this case, press the POWER key to advance to
the next test.
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675 p/ n 74346 SS-2 Programming Manual
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