Fisher & Paykel RF175W User manual

321037
Service Manual
Active Smart®
Refrigerator/Freezer
Models:
RF195A
RF175W

321037 - JANUARY 2011
Fisher & Paykel Appliances Inc
5900 Skylab Rd
Huntington Beach
California, CA92647
USA
Telephone: [phone]
Email: [email protected]
COPYRIGHT©FISHER & PAYKEL LTD 2010 - ALL RIGHTS RESERVED
2
The specifications and servicing procedures outlined in this manual are subject to change without
notice.
Note: A service summary may be found within a plastic bag wedged into the right hand side of the
condenser located behind the front toe kick panel of the refrigerator.
CA NUMBER MODEL NUMBER AS OF INTRODUCTION 2010
22601 RF195ADUX1 FP US
22605 RF175WCRW1 FP US
22606 RF175WCLW1 FP US
22607 RF175WCRX1 FP US
22608 RF175WCLX1 FP US
22609 RF175WCRUX1 FP US
22610 RF175WCLUX1 FP US
22611 RF175WDLX1 FP US
22612 RF175WDLUX1 FP US
22613 RF175WDLUX1 FP US
22614 RF175WDRUX1 FP US

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CONTENTS
1SPECIFICATIONS......................................................................................................................6
1.1 Cabinet Specifications......................................................................................................... 6
1.2 Compressor Specifications.................................................................................................. 6
1.3 Electrical Specifications....................................................................................................... 7
2MODEL NUMBER IDENTIFICATION ........................................................................................8
3SERVICING REQUIREMENTS..................................................................................................9
3.1 Specialised Service Tools ................................................................................................... 9
3.1.1 Static Strap................................................................................................................... 9
3.1.2 Interface Pen Mk 2 .......................................................................................................9
3.2 Health & Safety ................................................................................................................... 9
3.2.1 Good Work Practices.................................................................................................... 9
3.2.2 Environmental Health and Safety .................................................................................9
3.2.3 Good Practice and Safety............................................................................................. 9
4INSTALLATION INSTRUCTIONS............................................................................................10
4.1 Air Space Requirements ................................................................................................... 10
4.2 Levelling Components....................................................................................................... 10
4.3 Levelling the Cabinet......................................................................................................... 12
5THEORY OF OPERATION.......................................................................................................14
5.1 Terms ................................................................................................................................ 14
5.2 Defrost Cycle..................................................................................................................... 15
5.3 The Refrigeration Cycle..................................................................................................... 16
5.4 Servicing Features ............................................................................................................ 17
5.4.1 Condensate Disposal .................................................................................................17
5.4.2 Filter Drier...................................................................................................................17
5.4.3 Condenser.................................................................................................................. 18
5.4.4 Condenser Fan........................................................................................................... 18
5.4.5 Condenser & Mullion Layout ...................................................................................... 19
5.4.6 Compressor Compartment Layout ............................................................................. 20
5.5 FC Mullion Heater ............................................................................................................. 20
5.6 Provision Compartment Duct............................................................................................. 20
5.7 Divider Partition ................................................................................................................. 22
6ELECTRONICS SECTION.......................................................................................................23
6.1 Function Overview............................................................................................................. 23
6.1.1 Power / Control Module ..............................................................................................23
6.1.2 Door Switches ............................................................................................................24
6.1.3 Defrost Heater ............................................................................................................24
6.1.4 Thermal Fuse .............................................................................................................24
6.1.5 Low Ambient Heater ...................................................................................................24
6.1.6 PC/FC Fans................................................................................................................ 25
6.1.7 Lights (PC & FC) ........................................................................................................26
6.1.8 Thermistor Temperature Sensors............................................................................... 26
6.1.9 Flapper Door Heater................................................................................................... 27
7DISPLAY INTERFACE.............................................................................................................28
7.1 Display Interface (Button Descriptions) ............................................................................. 28
7.2 Display Functional Schematic ........................................................................................... 28
7.3 Display Interface Features ................................................................................................ 29
7.4 Features ............................................................................................................................ 29
7.4.1 Icemaker On / Off ....................................................................................................... 29
7.4.2 Freezer Chill Mode ..................................................................................................... 29
7.4.3 Bottle Chill Mode ........................................................................................................29
7.4.4 Water Dispensing ....................................................................................................... 29
7.4.5 Sabbath Mode ............................................................................................................30

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7.4.6 Key Silent Mode..........................................................................................................30
7.4.7 Dispenser Lock ...........................................................................................................30
7.4.8 Key Lock .....................................................................................................................30
7.4.9 Filter Replacement Alert .............................................................................................30
7.5 Icemaker............................................................................................................................30
7.5.1 Ice Production.............................................................................................................30
7.5.2 Information About The Icemaker ................................................................................31
7.5.3 Ice Bin Full Sequence.................................................................................................31
7.5.4 Safety First..................................................................................................................32
7.5.5 Icemaker Fill Tube Heater ..........................................................................................32
7.6 Key Presses.......................................................................................................................32
7.7 Temperature Settings ........................................................................................................33
7.8 Internal Air Flow.................................................................................................................34
7.9 Diagnostics ........................................................................................................................35
7.10 Fault Codes .......................................................................................................................35
7.11 Testing Icemaker Sensor...................................................................................................40
7.12 Testing Icemaker Motor .....................................................................................................40
7.13 Testing Water Valve ..........................................................................................................40
8DIAGNOSTIC MODES .............................................................................................................41
9INPUT / OUTPUT STATUS......................................................................................................43
9.1 Fault History.......................................................................................................................43
9.2 To Manually Force a Defrost .............................................................................................44
9.3 LCD Display.......................................................................................................................44
9.4 To Manually Force the Icemaker .......................................................................................44
9.5 Data Download ..................................................................................................................44
10 WATER DISPENSER............................................................................................................45
10.1 Pressure Dispensing Pad ..................................................................................................45
10.2 Initial Use...........................................................................................................................45
10.3 Water Filter and Cartridge .................................................................................................45
10.3.1 Installing the Water Filter ............................................................................................45
10.4 To Reset the Filter Icon .....................................................................................................46
10.5 To Disable the Filter Alarm ................................................................................................46
11 SERVICING PROCEDURES.................................................................................................47
11.1 Safety Considerations........................................................................................................47
11.2 Electrical Safety Test.........................................................................................................47
11.3 Door and Door Gasket.......................................................................................................48
11.4 Component Removal & Replacement ...............................................................................49
11.4.1 Removal Of Power/Control Module ............................................................................49
11.4.2 PC Sensor Replacement ............................................................................................49
11.4.3 PC2 Sensor Replacement ..........................................................................................49
11.4.4 Removal of PC Fan Motor ..........................................................................................50
11.4.5 Replacing Cross / Base Rail Reed Switches ..............................................................50
11.4.6 Removal of the drawer slide panels............................................................................50
11.4.7 Defrost Heater Element ..............................................................................................51
11.4.8 Thermal Fuse..............................................................................................................51
11.4.9 Removal Of FC Bins ...................................................................................................51
11.4.10 Removal of the FC Drawer .........................................................................................52
11.4.11 Refitting of the FC Drawer ..........................................................................................53
11.4.12 Removal of the FC Sensor .........................................................................................54
11.4.13 Icemaker Unit Replacement .......................................................................................54
11.4.14 Refitting the Icemaker.................................................................................................54
11.4.15 Replacing Flapper Element ........................................................................................55
11.4.16 Icemaker Temperature Sensor Replacement.............................................................56
11.4.17 Water Valve Replacement ..........................................................................................56
11.4.18 Replacement of Low Ambient Heater .........................................................................56
11.4.19 Replacement of Interior Lamp ....................................................................................57
11.4.20 Replacement of the interior light socket......................................................................57

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11.4.21 Replacement of PC Door (Where John Guest Fitting Has Been Fitted)..................... 60
11.4.22 Block / Edge Connectors............................................................................................ 60
11.5 Active Smart®PC / FC Fan Motor Tester .......................................................................... 64
12 FAULT FINDING THE ICEMAKER.......................................................................................65
12.1 Testing Icemaker Motor..................................................................................................... 66
12.2 Refitting the Dispenser Panel (RF195A) ........................................................................... 68
13 PRESSURE TESTING OF THE REFRIGERATION SYSTEM..............................................69
13.1 Transporting of Refrigerators ............................................................................................ 71
13.2 Evaporator Replacement................................................................................................... 72
13.3 Refilling a Void In Foam Insulation.................................................................................... 72
13.3.1 Polyurethane Foam ....................................................................................................72
13.3.2 Safe Practices ............................................................................................................ 73
13.4 Compressor Replacement................................................................................................. 75
14 FAULT FINDING...................................................................................................................76
14.1 Compressor Won't Start - Dead ...................................................................................... 76
14.2 Compressor Won't Start - Hums........................................................................................ 76
14.3 Compressor starts, runs and then stops ........................................................................... 76
15 WIRING DIAGRAM...............................................................................................................77
15.1 RF175 Wiring Diagram...................................................................................................... 77
15.2 RF175 Control Module Wiring Diagram............................................................................. 78
15.3 RF175 Ice & Water Wiring Diagram .................................................................................. 79
15.4 RF175 Ice & Water Control Module Wiring Diagram......................................................... 80
15.5 RF195A Ice & Water Wiring Diagram................................................................................ 81
15.6 RF195A Ice & Water Control Module Wiring Diagram ...................................................... 82
16 SERVICE REFERENCE........................................................................................................83
17 FAULT FINDING FLOW CHART - SERVICING...................................................................88
17.1 Refrigerator Not Operating ................................................................................................ 89
17.2 No Power to Power/Control Module and/or Display Module ............................................. 90
17.3 PC/FC Warm ..................................................................................................................... 91
17.4 FC Too Cold – PC Too Warm ........................................................................................... 92
17.5 PC Too Cold...................................................................................................................... 93
17.6 Ice/Condensation Forming ................................................................................................ 94
17.7 No Light ............................................................................................................................. 95
17.8 Door Switch Not Operating................................................................................................ 96
17.9 Defrost Heater Faults ........................................................................................................ 97
17.10 Compressor Faults ............................................................................................................ 98
17.11 Compressor Runs Continuously........................................................................................ 98
17.12 Compressor Will Not Run and is Hot to Touch.................................................................. 99
17.13 Compressor Electrical Tests ............................................................................................. 99
17.14 Refrigeration System Faults ............................................................................................ 100
17.15 Not Dispensing Water ..................................................................................................... 101
17.16 Not Producing Ice............................................................................................................ 102

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1 SPECIFICATIONS
1.1 Cabinet Specifications
DIMENSIONS RF195A mm RF175
(I&W) mm RF 175 Non I&W mm
Height 69” - 70” 1775 - 1794 69” - 70” 1775 - 1794 69” - 70” 1775 - 1794
Depth 28½” 725 28½” 725 28½” 725
Width 35” 905 32” 829 32” 829
CAPACITY GROSS VOLUME
RF195A RF175 (I&W) RF 175 Non I&W
Provision
Compartment
13.8 cu.ft. 391 litres 12.4 cu.ft. 353 litres 12.6 cu.ft. 357.4 litres
Freezer
Compartment
5.7 cu.ft. 161 litres 5.1 cu.ft. 143 litres 5.1 cu.ft. 143 litres
TOTAL 19.5 cu.ft. 522 litres 17.5 cu.ft. 496 litres 17.7 cu.ft. 500.4 litres
ELECTRONICS
Display Module (Ice & Water) Part No. 819415P
Display Module (Non Ice & Water) Part No. 881219P
Power/Control Module Part No. 860524P
SUCTION LINE ASSEMBLY
Part Number 817864
DEFROST ELEMENT
Part Number 884125P
Ice maker fill tube heater element
non replaceable
1.2 watts @ 120 Ohms
Provision compartment duct heater Xx watts @ xxx Ohms
CONDENSER FAN
Part Number 12825101P
1.2 Compressor Specifications
Make Embraco
Model EGX70HLC
Part Number 207247P
Volts 110
Hertz 60
Motor Protection Overload 4TM319NFBYY-53
Run Capacitor 12uF
Start Resistance (Ohms) 6.25@25OC (77OF) ±8%
Run Resistance (Ohms) 4.4@25OC (77OF) ±8%
Run Current (Amps) 0.99
Starting Device Type TSD
Oil Charge (ml) 280
Refrigerant Type R134a
Gas Charge 155 Grams of R134a

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1.3 Electrical Specifications
Rated Voltage 110 volts
Rated Current 1.75 amps
Frequency 60 Hz
Flapper Heater 12 volt 10 watt 15 ohms
Duct Heater 12 volt 3 watt 48 ohms
Low Ambient Heater 12 volt 7 watt 22 ohms
Ice Tube Heater 12 volt 1.2 watt 120 ohms
Defrost Element 110 volts 355 watts
Light Bulbs 12 volt 10 watts
Condenser Fan motor 110 volts 3.4 watts
1120 RPM @ 115 volts

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2 MODEL NUMBER IDENTIFICATION
1 2 3 4 5 6 7 8 9 10
RF 175 W C R U X 1 FP US
Product
Type
Capacity of
cabinet in Litres
175 = 175 litres
Bottom
Freezer
Drawer
Classic Right Hand
Door Hinging
Ice & Water Colour
M = Iridium
X = S/S Ezkleen
Iteration Brand Market
RF 175 W C R U X 1 FP US
Market (USA)
Brand (Fisher & Paykel)
Iteration (1)
Colour (Stainless Steel)
Ice & Water
Door Hinging (LH = left hand, RH = right hand)
Series (C = Classic, D = Designer)
A = French Door, W = Bottom mounted freezer drawer
Capacity of cabinet (Litres or cubic feet)
Product type (Refrigerator)

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3 SERVICING REQUIREMENTS
3.1 Specialised Service Tools
For the servicing of this product, specialised tools are needed.
3.1.1 Static Strap
To be used as ESD protection when replacing the console board.
3.1.2 Interface Pen Mk 2
Used to retrieve and download data from the electronic control module along with the diagnostic
programme on a laptop. Part number 425930.
3.2 Health & Safety
3.2.1 Good Work Practices
1. Take care while removing all plastic components, especially when cold.
2. Leave the product clean and tidy when service work is completed.
3. Extreme heat in cabinets will cause plastic deterioration or distortion and thermal fuses in the
evaporator to go open circuit (be careful with heat guns).
3.2.2 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:
1. Electrical safety.
2. Electrostatic discharge.
3. Mixing of foam insulation.
4. Vapours while brazing.
5. Reclaiming of refrigerant.
3.2.3 Good Practice and Safety
1. Take care when removing or servicing all 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 fuse and
cabinet sensors.
5. Avoid using solvents and citrus based cleaners on all plastic parts. We advise only warm
soapy water be used.

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4 INSTALLATION INSTRUCTIONS
4.1 Air Space Requirements
On all refrigerators and freezers it is important that an air gap is left around the product:
•50mm (2”) clearance at the top.
•20mm (0.8”) clearance each side.
•30mm (1.2”) clearance at the back.
4.2 Levelling Components
Front and rear rollers are fitted ex factory.
Cabinet levelling can be done by adjustment of the front roller-levelling screw. See diagram 4.2.
Weight should be lifted off the cabinet for ease of adjustment.
If it is necessary to place packing material under the rollers to achieve the required height, use only
hardboard or plastic, NOT metal.
Diagram 4.1 (Front Leveller & Roller)
Diagram 4.2 (Front Levelling Screws)

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Diagram 4.3 (Toe Grill Installation)
Diagram 4.4 (Uneven Door Alignment)
RF195A only. Adjust levelling foot to adjust door alignment.

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4.3 Levelling the Cabinet
The word 'level' is somewhat of a misnomer, as a 'spirit level' need not be used to set the
appliance level. It is preferable to have the appliance level in appearance where both doors will
close with the aid of the door closing components. It is also important that the appliance sits
solidly on the floor.
Cabinet levelling can be done by adjustment of the front roller-levelling wheel fitted ex factory.
Weight should be lifted off the cabinet for ease of adjustment.
The product should be levelled with the majority of the weight on the right hand hinge side front
foot.

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The opposite side of the
front foot should then be
adjusted to stabilise the
product. Measure the gap
between the roller and the
floor. This distance should
be the depth of the rear
packing material.
Cut the solid packing
material to the depth and
place the material on the
floor against the wall and
push the product on top of
the material.
Unlevelled floors:
Gently push the top of the
refrigerator back until the
rear rollers contact the floor.
Measure the gap under the
front foot, which has come
off the floor.
Obtain some solid packing
material (hardwood, plastic
etc, NOT metal), which fits
firmly into the gap under the
foot.
Note: Do not use metallic
materials that may corrode
and stain or damage floor
coverings.

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5 THEORY OF OPERATION
5.1 Terms
CABINET WRAPPER
Pre-painted steel.
LINER
A two-piece vacuum formed HIPS liner.
DIVIDER
Is formed by the two-piece vacuum formed liners.
FAN MOTORS
DC 12 volt brushless variable speed fan motors for air circulation in both 1 x FC and 1 x PC
compartments.
CONDENSER
All wire on tube located in base tray.
CONDENSER FAN
The condenser fan is 110 volt and is connected in parallel with the compressor circuit.
EVAPORATOR
Aluminium Fin on Tube type mounted vertically on the back wall of the FC compartment.
SUCTION & CAPILLARY LINE
Foamed into the back of the cabinet with all joints to the evaporator brazed in the FC.
POWER / CONTROL MODULE
Contains the microprocessor that controls all functions of the refrigerator and gathers data from the
sensors. This module also contains support circuitry to switch the various outputs.
DISPLAY MODULE
Using signals from the Power Module, this module generates the LED display. The lamp is also
switched from this module.
REED SENSORS
Reed switches encapsulated within plastic housings are mounted on the cross and base rails
behind plastic covers. A magnet housed just under the lower end cap of each door activates these
reed switches when the doors are closed.
COMPARTMENTS
In this manual we refer to the refrigerator compartments as follows:
•PC = Provision or fresh food compartment.
•FC = Freezer compartment.
LOW AMBIENT HEATER
Blanket wire type attached to the base of the PC liner.

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5.2 Defrost Cycle
The following table outlines the defrost cycle of an Active Smart®refrigerator.
Defrost Cycle of the Active Smart®Refrigerator
(With Showa Evaporator)
COMPRESSOR DEFROST ELEMENT DEFROST ELEMENT COMPRESSOR BOTH PC & FC
TURNS OFF TURNS ON TURNS OFF TURNS ON FANS TURN ON
DEFROST TIME;
TARGET IS 18 MINUTES
MAXIMUM IS 40 MINUTES
NORMAL RUN 2 MINUTES 4 MINUTES 30 SEC BACK TO NORMAL RUN
WARM UP DEFROST DRIP TIME DELAY
Diagram 5.2
If 40 minutes has elapsed, defrost
would be aborted if the defrost
sensor has not reached 8°C
(46.4OF). If 2 defrosts are aborted,
Fault Code 2 is displayed.

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5.3 The Refrigeration Cycle
The compressor discharges high pressure, high temperature gas into the condenser circuit. A loop
from this condenser coil forms the mullion heater around the front edge of the freezer compartment
of the cabinets to then enter the filter drier, which is mounted vertically in the unit compartment.
Now that the high-pressure gas has been condensed, the liquid refrigerant flows through the
capillary tube, which is soldered to the suction line as a heat exchanger, entering the evaporator
mounted in the freezer compartment. The liquid refrigerant then boils off due to the low suction
pressure applied to it within the evaporator from the compressor, causing the evaporator to get
very cold. (Note: A warm body moves to a colder body). This heat-laden vapour is drawn back to
the compressor by way of the suction line to start the cycle all over again.
Diagram 5.3

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5.4 Servicing Features
5.4.1 Condensate Disposal
During the defrost cycle, which is electronically timed and controlled, live frost is melted off the
evaporator by means of heat from the defrost heater element. Condensate from the evaporator
defrosting drops into a collection trough, which has an outlet hole in the centre of the liner. A tube
then allows the condensate to flow into a water evaporation tray that is located directly below the
Condenser fan. Water is evaporated by warm air from the condenser drawn across the tray by the
condenser fan.
Diagram 5.4.1
5.4.2 Filter Drier
Diagram 5.4.2
The filter drier or molecular sieve, as the name suggests, is both a filter and a drier. Whenever a
system is opened it is essential that the filter drier is replaced. ALWAYS ensure that replacement
filter driers are kept well sealed and airtight prior to being fitted to a system.
PLEASE NOTE: When filter driers are replaced on systems being serviced, it is important that
the filter drier is either cut from the system or the desiccant is removed before heat is
applied to the old filter drier. Failure to do so will drive any moisture held in the desiccant
back into the system.
ALWAYS mount vertically or as near to vertical as possible and use the correct desiccant to suit
the refrigerant being used.
XH7 or XH9 suits R134a.

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5.4.3 Condenser
The condenser is made of tube and wires welded and folded and is located horizontally in the base
of the cabinet (see circuit diagram below). Air is drawn across and through this condenser by the
condenser fan that is located alongside the compressor in the unit compartment.
It is important that the condenser is cleaned from time to time as any restriction to air flow
will affect the overall operating performance of the cabinet.
Diagram 5.4.3
5.4.4 Condenser Fan
The condenser fan, located in the unit compartment between the compressor and control module,
is of the shaded pole type motor, pulling air through the condenser.
Diagram 5.4.4

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5.4.5 Condenser & Mullion Layout
Diagram 5.4.5

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5.4.6 Compressor Compartment Layout
The diagram below will assist in identifying the various pipes within the compressor compartment.
It should be read in conjunction with the full system diagram (See Diagram 5.3).
Diagram 5.4.6
1. Service tube (process pipe).
2. Suction line.
3. Discharge line into condenser.
4. Condenser to mullion.
5. Mullion to filter.
6. Capillary tube.
7. Filter dryer.
8. Filter process pipe.
5.5 FC Mullion Heater
The mullion heater is part of the condenser copper tubing (mullion heater) providing heat to the
gasket area of the FC compartment, preventing sweating of the gasket around the freezer
compartment.
5.6 Provision Compartment Duct
The duct covers provide an air passage up the rear wall of the provision compartment for the cold
air drawn from the evaporator by means of the PC fan located at the bottom of the duct in the
divider partition (refer to Diagram 5.6).
The duct channel uses moulded polystyrene duct for this purpose
8
2
3
7
6
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