Fisher & Paykel RF135B Service Summary page 2

VALUE TABLE Of fAULTS
29 Reason: IM Water solenoid current low.
primary action: Open circuit solenoid.
30 Reason: No display signal.
primary action: Check short/broken wire. Test wire
continuity.
31 Reason: No display signal.
primary action: Check short clock/data line. Test
wire continuity.
32 Reason: Display water transistor 1 failure.
primary action: Check solenoid valve resistance.
Secondary action: Replace dispenser display.
33 Reason: Display water transistor 2 failure.
primary action: Check solenoid valve resistance.
Secondary action: Replace dispenser display.
34 Reason: Display water transistor 1 and 2 failure.
primary action: Check solenoid valve resistance.
Secondary action: Replace dispenser display.
40 Reason: IM solenoid short circuit transistor 1.
primary action: Check solenoid resistance.
41 Reason: IM solenoid short circuit transistor 2.
primary action: Check connections.
42 Reason: IM heater is drawing higher current than
expected.
primary action: Check wiring connection.
43 Reason: IM heater is drawing less current than
expected.
primary action: IM heater open circuit.
Reason: Communication error between control
49
module and inverter
primary action: Check wiring connections on
control module and inverter.
Secondary action: Replace control module
Tertiary action: Replace inverter
DIAGNOSTIC mODE
7
There are several diagnostic modes available to the service
technician to assist them in diagnosing product faults.
To enter diagnostic mode, press and hold the and
● ●
buttons together for 4 seconds.
The temperature LEDs indicate the current diagnostic mode.
● ●
When diagnostic mode is first entered it will be in PC
● ●
temperature sensor mode (2). Use the and buttons to
scroll through the various diagnostic modes (1 – 8).
To return to normal operation press the button once.
● ●
The following temperature LEDs are illuminated to indicate
the current diagnostic mode:
mODE DESCRIpTION
1
Optical Download
2 Provisions compartment (PC) temperature
sensor
3
Freezer compartment (FC) temperature sensor
4
Evaporator (EV) temperature sensor
5
Inputs and Outputs display
6
Provisions compartment 2nd (PC2) temperature
sensor or Ambient temperature sensor (French
door models only)
7
Ice Tray Temperature sensor
8
Fault History
Diagnostic mode 1
Optical Download
This sends encoded data through the Key Lock LED
● ●
indicator at the top of the display.
A light pen is required to retrieve information from the
● ●
power/control module.
– Light Pen (425930) & a laptop computer with F&P
Smart Tool diagnostic program installed.
1 Enter diagnostic mode.
2 Scroll to the Optical Download mode by pressing the
button once.
Place a light pen over the Key Lock LED indicator until
3
download is complete.
Return to normal operation by pressing the button.
4
Diagnostic modes 2, 3, 4, 6 and 7
Temperature Sensor Indication
In these modes LED indicators and temperature LEDs are
used to show the temperature reading of sensors.
The following table shows which LED indicators are used to
represent the various temperature sensors.
TEmpERATURE SENSOR LED INDICATOR
2 – PC temp PC Compartment
3 – FC temp FC Compartment
4 – EV temp PC + FC Compartment
6 – PC2 temp/Ambient
PC compart + Blinking
temp (FD models)
7 – Ice tray temp Ice On/Off
The temperature LEDs display the temperature reading in a
binary code.
– – – 64 32 16 8 4 2
The value for each temperature LED (°C)
cautIon!
In reading sensor temperatures there is a need to enter the
required diagnostic mode as soon as soon as possible as
temperatures will change rapidly once door is opened.
Enter diagnostic mode and then scroll to the desired mode
1
using the button.
2 Add up the binary number indicated by the temperature
LEDs.
3 Subtract 40 from the result in order to get the temperature.
4 Return to normal operation by pressing the button.
Diagnostic mode 5
Input / Output display
The Input/Output Status menu displays what devices (eg
light, PC door, FC door, compressor, etc) are currently
running or turned on.
In this mode, the state of each peripheral input and output
is displayed.
- -
-
Fig.1 Input/output assigned to each LED
To enter the mode, the steps are:
Enter the diagnostic mode.
1
Scroll to the input/output mode by pressing the
2
3 times.
The respective LED turns on when a device is running, as
3
shown in Fig.1 above.
4 Return to normal operation by pressing the
Diagnostic mode 8
Fault History
The fault history will indicate the last fault that occurred
with the appliance. This will be displayed for a period of
four days, after which it can only be accessed via optical
1 0.5
download.
Fault history is displayed in the same format to normal fault
code except the LEDs are not flashing.
manually force harvest
Press and hold , and together for 4 seconds then
close the door(s). The ice tray will flip. Force another cycle.
The ice tray will flip and spill the water into the ice bin.
Empty water and replace bin.
Not activating harvest
Check icemaker sensor continuity.
Environmental health and safety
When servicing products, consider safety and health issues
and requirements which must be adhered to at all times.
Specific safety issues are:
Electrical safety.
1
Electrostatic discharge.
2
Vapors while brazing.
3
Reclaiming of refrigerant.
4
Good practice and safety
1 Take care when removing or servicing any electrical
components to avoid electrical shock or short circuit
conditions.
2 Take care when removing plastic components at low
temperatures as breakages can occur with these
components.
3 Extreme heating of plastic components can cause distortion
of those parts being heated.
4 Avoid overheating temperature sensitive devices such as the
element thermal fuses and cabinet sensors.
Avoid using solvents, citrus-based cleaners on all plastic
5
parts. We advise only warm soapy water be used.
If further help is needed concerning this appliance call:
- - -
Toll free: 1.888.9.FNP.USA (1.888.936.7872)
Website: www.fisherpaykel.com
LOWER DOOR
UPPER DOOR
PC FAN
LOW AMB HTR
LAMP
FC FAN
DEFROST HTR
COMPRESSOR
button
button.
842118 A 02.15