GE Refrig - Precise Fill Bulletin

GE Refrig - Precise Fill Bulletin
TB 05-06
GE Consumer & Industrial
Training Bulletin
August 2006
Precise Fill Feature
GE Side-by-Side Refrigerator
Models:
PCF25PGT
PSC25PST
PSC23PST
PSF26PGT
PSH23PGT
Introduction
PSH25PST
PSH23PST
PSS26PST
PSW26PST
PSW23PST
The 2006 model year side-by-side refrigerators listed above have a new feature on the dispenser board called
Precise Fill. The Precise Fill mode allows the user to select a specific volume to be dispensed in either cups or
ounces.
Overview
The Precise Fill design places a flowmeter between the water valve and the dispenser to measure water flow
through the system. The flowmeter sends a signal to the main control board. The main control interprets the signal,
turning the water valve off at the appropriate time. The quantity dispensed is displayed on the dispenser board.
WATER FLOW
WATER
SOURCE
DISPENSER
SPOUT
WATER
FILTER
WATER
VALVE
FLOWMETER
WATER
TANK COIL
DOOR
CONNECTION
GE Appliances
General Electric Company
Louisville, Kentucky 40225
GE CONFIDENTIAL AND PROPRIETARY INFORMATION - NOT FOR PUBLIC DISCLOSURE
Display
The Precise Fill feature is activated by pressing any of the buttons in the Precise Fill area of the display (activating
the feature by pressing
will not increment the display value).
Note: Display will blank if left idle for more than 15 seconds.
Upon activation, the settings last used will be
displayed (i.e. Units Button LED will be
illuminated, Units LED will be illuminated, and
Numeric Volume will be displayed). The
default display on power up will illuminate the
CUPS Unit Button LED, the CUP LED, and the
Numeric Volume set to “1” cup.
Pressing the OUNCES button will cause the
OUNCES Unit Button LED and the OUNCE LED
to illuminate. The Numeric Volume display will
convert from cups to ounces. For example, if
the display is set to CUPS and the Numeric
Volume is set to “1” cup, pressing the OUNCES
button will change the Numeric Volume
display from “1” cup to “8” oz.
PRECISE FILL AREA
PRECISE FILL
DOOR
ALARM
OUNCES
LIGHT
RESET
FILTER
WATER
OUNCE
CUP
CRUSHED
CUBED
CUPS
QUICK ICE
LOCK
Hold 3 seconds
Hold 3 seconds to Reset
NUMERIC VOLUME
UNITS LED
UNITS BUTTON
Note: Fractions are rounded to the nearest full ounce.
The Numeric Volume display is controlled by both sets of
and Fractions are displayed on the right.
buttons. Whole Numbers are displayed on the left
In OUNCES mode, the
buttons on either side will increase/decrease the Whole Number display.
Note: Fractions will not be displayed in OUNCES mode.
In CUPS mode, the
buttons on the left will increase/decrease the Whole Number display while the
on the right will increase/decrease the Fraction display.
PRECISE FILL
DOOR
ALARM
OUNCES
OUNCE
CUP
CRUSHED
CUBED
LIGHT
RESET
FILTER
WATER
CUPS
QUICK ICE
LOCK
Hold 3 seconds
Hold 3 seconds to Reset
WHOLE NUMBERS
FRACTIONS
-2-
buttons
Display continued
Whole Number and Fraction volumes are displayed as shown in the chart below.
OUNCES
DISPLAY
LOWEST QTY.
HIGHEST QTY.
INCREMENTS
CUPS
WHOLE NUMBER
2
99
WHOLE NUMBER
1
16
1
1
FRACTIONS
1/4
3/4
1/4, 1/3, 1/2, 2/3, 3/4
Note: The maximum conversion for cups to ounces is 12 1/3 cups (12 1/3 cups = 99 ounces). When changing from
cups to ounces, any cup selection over 12 1/3 cups will default to 99 ounces.
When units and measurement have been selected, engage the dispenser paddle to activate the preset water flow.
Successful activation will result in a “racetrack” within the Whole Number display.
PRECISE FILL WATER DISPENSE
Upon completion, Numeric Volume will display “0” and beep, then return to the previous setting 1 second after the
dispenser paddle is released.
Note: If water flow is disengaged prior to completion, the Numeric Volume display will show the remaining amount
to be dispensed for 5 seconds. If the dispenser paddle is re-engaged within this time, metered dispense will
continue dispensing remaining amount. Otherwise, the Numeric Volume display will revert back to the last
selected volume.
Precise Fill mode will deactivate and revert to Normal Dispense mode if left idle for more than 15 seconds.
PRECISE FILL
DOOR
ALARM
LIGHT
WATER
BUTTON
RESET
FILTER
WATER
OUNCE
CUP
CRUSHED
CUBED
QUICK ICE
OUNCES
OUNCES
UNITS BUTTON
CUPS
CUPS
UNITS BUTTON
LOCK
Hold 3 seconds
Hold 3 seconds to Reset
NUMERIC
VOLUME DISPLAY
NORMAL WATER DISPENSE
Pressing the WATER button and engaging the dispenser paddle will provide normal water dispense. Upon
completion of a normal water dispense, the Numeric Volume will display in ounces and the OUNCE LED will
illuminate. Display will remain illuminated for 3 seconds, at which time the OUNCE LED will turn off and the Numeric
Volume display will go blank. The OUNCES units button will remain off.
SHOWROOM MODE
The dispenser will simulate a flowmeter pulse rate even though there is no water flowing through the system to
cause actual flowmeter pulses and will run through its normal operation. To activate Showroom mode, press the
freezer temperature COLDER pad and the fresh food temperature WARMER pad simultaneously for 3 seconds. To
exit, disconnect power cord or enter service diagnostics mode and reset the main control using pads 1 and 5.
COLDER
WARMER
-3-
Flowmeter
WATER VALVE
FLOWMETER
The flowmeter is located in the machine
compartment behind the water valve. The water
valve must be removed to access the flowmeter.
When the dispenser is activated, the flow of water through the meter rotates a paddle. The paddle contains a
magnet which passes by a sensor within the flowmeter. The sensor counts the number of revolutions and sends
that information to the main control board. For example, 1 Cup = Nr (number of revolutions). The main control
board cycles the water valve relay based on the information.
WATER
SOURCE
WATER
FILTER
DISPENSER
SPOUT
USER
WATER
VALVE
DISPENSER
BOARD
FLOWMETER
PADDLE
WATER
TANK COIL
DOOR
CONNECTION
MAIN
BOARD
CUSTOMER INTERFACE
SIGNAL
WATER
-4-
Schematic
BLACK
J4-1
RED
J4-2
BLUE
J4-3
FLOWMETER
J4-1
J4-2
J4-3
RED (POWER)
BLACK (COMMON)
WHITE (FEEDBACK TO MAIN CONTROL)
J14-4
J14-2
MAIN CONTROL BOARD
DISPLAY BOARD
STRIP CIRCUIT
MAIN CONTROL BOARD
L1
1
J4
J15
J8
COMP
J9
DEFR
J11
LINE
J14
K6
2
P
9
N
J6
K4
1
5
2
1
1
4
1
1
J3
J2
DFZ
10
DFF
J7
1
OCH
8
COMMON
K5
WATER
1
CRUSHER
1
K1
J1
AUGER
J5
K2
K3
K7
6
-5-
9
Troubleshooting
NO PRECISE FILL WATER
START
Does normal water
dispense work?
No
Does dispenser display
light up?
Yes
No
Yes
Replace dispenser board
Yes
Is there
13.6 VDC
between red and black
wires on J4 at dispenser
board
Does ice dispense
activate auger motor?
Yes
Check:
1.) Water supply
2.) Water valve
3.) Frozen water tank
4.) Wiring between water valve and main control board
5.) Main control board
No
Check:
1.) Freezer door switch
2.) Dispenser switch
3.) Wiring connections at bottom of freezer door
No
Check:
1.) Wiring between dispenser and main control board
2.) Wire connector at bottom of freezer door
3.) Main control board
Is there 13.6 VDC
between red and black
wires on flowmeter
No
Check:
1.) Wiring between flowmeter and J14 on main control board
2.) Main control board
Yes
Is there 6.5 -7 VDC
between red and white
wires on flowmeter when
1st activated
Yes
No
Replace flowmeter
Check:
1.) Wiring between flowmeter and main control board
2.) Main control board
Note:
If no water is flowing through the flowmeter or no
communication is occurring between the flowmeter
and the main control board, the dispenser will display
“0” and beep after 2 seconds.
Removal and Installation
REMOVING THE DISPENSER INTERFACE
Grasp the bottom lip of the interface on either side and gently pull toward you. Disconnect the 3 wire connectors from
the board.
Note: The interface is replaced as a complete assembly.
When assembling, insert top tabs into the top of door recess first, then snap the bottom into place.
TAB
TAB
PRECISE FILL
DOOR
OUNCES
ALARM
LIGHT
RESET
FILTER
WATER
OUNCE
CUP
CRUSHED
CUBED
CUPS
QUICK ICE
LOCK
Hold 3 seconds
Hold 3 seconds to Reset
LIP
LIP
WIRE CONNECTORS
TAB
TAB
-7-
Removal and Installation continued
REMOVING THE FLOWMETER
1/4-IN.
SCREW
WATER
VALVE
1. Remove one 1/4-in. hex-head screw and the water
valve.
TABS
2. Disconnect the water line from the flowmeter.
3. Remove one 1/4-in. hex-head screw and the
flowmeter mounting bracket.
4. Disconnect the wire connector from the flowmeter.
5. Remove three 1/4-in. hex-head screws from
mounting bracket
Note: DO NOT DISCARD MOUNTING BRACKET.
MOUNTING BRACKET IS NOT AVAILABLE AS A
REPLACEMENT PART.
MOUNTING
BRACKET
-8-
HEX-HEAD
SCREW
HEX-HEAD
SCREWS
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