Amana 22 Cu. Ft, Руководство по обслуживанию

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RS1300005 Rev. 0 42
Ice ‘N Water Systems
Symptom Possible Cause Test Procedure Repair
Open circuit in the
L1 RED wire in the
freezer door
harness. Unplug the refrigerator.
Remove the large 10-pin connector from the power
board. Power up the refrigerator. Take line voltage
reading between RED wire on pin 5 (L1) on the
connector across to the unit chassis. The reading must
be line voltage level. If the correct voltage is not measured,
then locate source of the open on L1 or
the ground wire/connection to the wall
outlet and repair/replace as necessary.
If voltage reading is ok, then go to the
frame below.
Open circuit in the
neutral WHITE wire
in the freezer door
harness. Perform test above first, then if it passes, take line
voltage reading between RED wire pin 5 (L1) on the
connector across to WHITE wire pin 1 (NEU). The
reading must be line voltage level. If the correct voltage is not measured,
then locate source of the open and
repair/replace as necessary. If break in
the wire is not accessible, then replace the
door.
If voltage reading is ok, then go to the
frame below.
Failed power board Unplug the refrigerator.
Remove the small 10-pin connector at the bottom of the
power board from the power board. Power up the
refrigerator. Take a voltage reading between pin 8 and
pin 10 at the very bottom of the header on the PCB.
The reading must be 5.0 VDC +/- 0.25 VDC. If the correct voltage is not measured,
then replace the power board.
If voltage reading is ok, then go to the
frame below.
Dead
Control:
No display
No sound
No
dispensing
Failed control
board or LCD
Module. Place one Probe left of the C4 graphic on the PCB. The
other probe needs to be placed on the solder test point
just right of J1 the 10 pin header.
Control Board
If the correct voltage is present, then
replace the control board.
If the correct voltage is not present, then
disconnect the LCD Module tail at the
control board and check the voltage again.
Now if the correct voltage is present,
replace the LCD Module.
If the black and white jumper harness
wires are not making good contact, then
repair/replace the jumper harness wires,
otherwise replace the control board.
Either ice or
water never
dispenses.
Animation
does not
display when
the switch is
pressed. 1. Open wire on
the dispenser
harness
2. Control board
failure.
3. Switch failure
4. Mechanical
failure of
pushbutton or
dispenser
pad.
With the unit powered up, connect a voltmeter
configured for DC volts:
For a “no auger motor operation”, check across pins 1
and 4 of the dispenser connector. For a “no water flow”,
check across pins 2 and 4 of the dispenser connector.
When the switch is not pressed there should be 5.0
VDC. When the switch is pressed, there should be 0
VDC.
Measure voltage without pressing the switch. The meter
should measure 5.0 VDC. If there is 0 VDC, then disconnect the
dispenser harness and read the meter
again.
If there is still 0 VDC then replace the
control board.
Otherwise if the meter reads 5.0 VDC,
then close the switch. The meter must
read 0VDC. If it does not, then test the
dispenser harness connections, water and
dispenser switch function and mechanical
functioning of the pushbuttons.
Repair or replace as needed.
Water never
dispenses.
Animation
displays
when the
switch is
pressed. Failed control
board, power
board, water valve
or harness. Setup voltmeter to read line voltage. Attach meter
probes to Power board J2 pins 1 (WH) and 6 (YL).
When the system is powered up and the dispenser
switch is open, <15 VAC must be read. When the switch
is closed, line voltage must be read. If the proper voltages are read, then the
problem is in the wiring back to the water
valve or one of the water valves.
If the proper voltages are not read, then
setup voltmeter to read 5.0 VDC.
Measure voltage on the power board from
J1 pins 7 to 10. 5 VDC must be read when
the switch is closed.
If the proper voltage is read, then replace
the power board otherwise check the
harness and replace either the harness or
the control board.
Ice never
dispenses.
Animation
displays
when switch
is closed. Failed control
board, power
board, auger motor
or harness. Setup voltmeter to read line voltage. Attach meter
probes to Power board J2 pins 1 (WH) and 7 (OR) for
cubed ice or 8 (BL) for crushed ice direction. When the
system is powered up and the dispenser switch is open,
<15 VAC must be read. When the switch is closed, line
voltage must be read. If the proper voltages are read, then the
problem is in the wiring back to the auger
motor or the auger motor itself.
If the proper voltages are not read, then
setup voltmeter to read 5VDC. Measure
voltage on the power board from J1 pins 6
(RD) for cubed or 5 (BU) for crushed and
pin 10 (BK). 5 VDC must be read when
the switch is closed.
If the proper voltage is read, then replace
the power board otherwise check the
harness and replace either the harness or
the control board.
INVENSYS
APPLIANCE
CONTROLS
J1 CTRL OUT
C4
ATTACH LEADS OF VOLTMETER HERE
*2