Eco-Smart GWL10US Owner's manual

ELECTRONIC WASHING MACHINE
MODEL GWL10US
Service Supplement to be used in conjunction with GWL03US
Service Manual Part Number PM912
Fisher & Paykel Appliances Inc
27 Hubble, Irvine, California, CA92618, USA,
Ph: 949 790 8900, Fax: [phone]
200437

C O N T E N T S
1.0 SPECIFICATIONS ................................................................................................................... 5
Finish.......................................................................................................................................... 5
Dimensions ................................................................................................................................. 5
Maximum Capacity (Full Load) (AS 2040) ................................................................................. 5
Water Consumption Per Fill (With Full Clothes Load) ................................................................5
Wash Motor ................................................................................................................................ 5
Pump Motor................................................................................................................................ 6
Water Valves............................................................................................................................... 6
Thermistor .................................................................................................................................. 6
Recirculating Valve..................................................................................................................... 6
Inner Bowl Speed........................................................................................................................ 6
Fabric Softener Dispenser ........................................................................................................... 6
Electric Supply............................................................................................................................ 6
Max Current................................................................................................................................ 6
2.0 INTRODUCTION.................................................................................................................... 7
PERFORMANCE CHANGES .................................................................................................... 7
Recirculating Smart Drive System........................................................................................... 7
ELECTRONICS ......................................................................................................................... 8
STAND BY MODE .................................................................................................................... 9
WATER TEMPERATURE SENSING........................................................................................ 9
WATER VALVES...................................................................................................................... 9
RECIRCULATING VALVE....................................................................................................... 9
STATOR................................................................................................................................... 10
PUMP ....................................................................................................................................... 10
SIZE SETTING MODE (Same as Series 8)............................................................................... 11
3.0 DIAGNOSTIC MODE........................................................................................................... 12
3.1 EXAMPLES OF BINARY CODE...................................................................................... 13
3.2 LID SWITCH & OUT OF BALANCE SWITCH TEST..................................................... 14
3.3 DRAIN PUMP TEST ......................................................................................................... 14
3.4 WATER VALVE TEST..................................................................................................... 14
3.5 RE-START FEATURE ...................................................................................................... 15
3.6 RE-CYCLE FEATURE...................................................................................................... 15
3.7 HOT TUB FLAG ...............................................................................................................15
3.8 FAULT DISPLAY ............................................................................................................. 16
4.0 WIRING DIAGRAM .............................................................................................................16
5.0 DETAILED FAULT CODES................................................................................................. 17
FAULT DESCRIPTIONS ......................................................................................................... 18

ELECTRONIC AUTOMATIC WASHING MACHINE
MODEL GWL10US
1.0 SPECIFICATIONS
FINISH
Cabinet Prepaint (Polyester)
Lid Polypropylene
Console Polypropylene
Inner bowl stainless steel grade 430T
Outer bowl Polypropylene
Agitator Polypropylene
Top Deck Polypropylene
DIMENSIONS
Height to Lid
Open 1350mm - 1380mm (4ft 5inc - 4ft 6inc)
Closed 900mm - 930mm (35 13/32inc - 36 19/32inc)
Width 650mm (25 1/2inc)
Depth 650mm (25 1/2inc)
Inlet Hose Length 1200mm / 43inc
Weight
Packed 57.5kg / 126lbs
Unpacked 51.0kg / 112lbs
MAXIMUM CAPACITY (FULL LOAD) (AS 2040)
Dry Weight 7Kg / 15.4lbs
WATER CONSUMPTION PER FILL (WITH FULL CLOTHES
LOAD)
87ltrs / 23gals
WASH MOTOR
Electronically commutated direct drive 3 Phase brushless DC Motor
Motor Resistance per Phase 16 ohms @ 200C / 68°F

PUMP MOTOR
230V AC/ 0.7Amps/ 80watts (SELNI)
Thermal cut-out fitted
Flow Rate 24ltrs /min / 6.3 gal/min
Pump motor resistance 33 ohms @ 200C / 68°F
WATER VALVES
24 Volts DC
Digital Valve Resistance 64 ohms @ 20°C / 68°F
Flow Rate 10 ltrs/min - 2.6 gal/min
Proportional Valve Resistance 64 ohms @ 20°C / 68°F
Flow Rate 16ltrs/ min - 4.2 gal/min
Operating pressure Max 1034 kpa (150PSI)
Min 20 kpa (3 PSI)
THERMISTOR
NTC-type temperature sensor Resistance 10,000 ohms @ 25°C / 77°F
RECIRCULATING VALVE
Resistance 1.5 Kohms @ 20°C/68°F
INNER BOWL SPEED
Other Cycles Regular Cycle
Fast Spin 1,000 RPM 1,000 RPM
Medium Spin 700 RPM 800 RPM
Slow 300 RPM 700 RPM
Stir Speed 25 RPM 25 RPM
FABRIC SOFTENER DISPENSER
Dosage 75cc
ELECTRIC SUPPLY
120Volts / 60Hz
MAX CURRENT
2.8 amps

2.0 INTRODUCTION
This Service Supplement contains information on the Product Specifications, Diagnostic Mode and
the Detailed Fault Codes. For all other Service and Option Adjustment information please refer to
your GWL03 Service Manuel part number 426348.
Note: The water temperature adjustment in the Option Adjustment mode is only available on
model GWL03. Model GWL10 has 5 preset temperatures which are factory set and are non-
adjustable.
The detailed fault codes in this Service Supplement can also be used for GWL03 Smart Driveä
washing machines.
PERFORMANCE CHANGES
The introduction of model GWL10 sees changes to the way the Smart Drive wash cycle is
composed.
RECIRCULATING SMART DRIVE SYSTEM
The machine will start to fill with the temperature selected by the user. The bowl will only fill until
the clothes load is 100 per cent saturated with water. The machine will stop filling and begin the re-
circulating phase (for every cycle except Permanent Press, which features a traditional full bowl
fill). The water in the bowl is pumped up through the re-circulating hose and back into the bowl
onto the clothes, with a fan-like spray pattern. As the water recirculates, the bowl will stir, pausing
every 16 seconds. Short top-ups may occur, as garments absorb water, keeping the water level
constant. Recirculating this small amount of water dissolves detergent, activates enzymes plus
bleach that will then penetrates dirt at fibre level, accelerating the wash process.
After 3 minutes, the bowl will begin to fill with cooler water (cold controlled to 16°C/61°F) to the
level selected by the user, or, if auto is selected, to the level chosen by the machine and will begin
to agitate. Because the wash cycle has already been boosted, less agitation time is needed.
The default rinse setting for the regular cycle of the GWL10 consists of a series of multiple shower
rinses and spins that flush water through the clothes, assisted by the specially designed nozzle.
Fabric Softener cannot be dispensed during this rinse. If fabric softener is required, the Softener
Rinse Option must be selected. This will convert the machine to a spray and deep rinse, which will
allow the fabric softener to be dispensed correctly.
The Smart Driveäwashing machine has 2 load sensing methods to ensure the right wash action is
used for the type and size of wash load.

·LSD - Load Sensing Detection is used to continually sense the load and automatically adjust
the agitation profiles to suit the wash load. It is also used to determine when a maximum
capacity profile needs to be used. If additional garments are added during the cycle the washer
will adjust accordingly, increasing the amount of water and changing the wash profile. If the
machine is operating on high water level, regular cycle, with a very large heavy load, then the
Load Sensing Detection will activate the Maximum Capacity Profile.
·MCP - Maximum Capacity Profile is present in the regular cycle, high water level only. It is
clearly noticeable. The machine will stop agitating and restart with a perceivably different
profile. The agitation time will also increase by 1 minute. MCP usually occurs 1-3 minutes into
the wash and will, of cause, only occur if the machine is heavily loaded.
ELECTRONICS
The electronics for Series 10 Smart Drive are now air cooled instead of being water cooled as in
previous models. This has been made possible by changes to the stator winding which allows a
lower current through the electronics and the use of the latest low loss semiconductor-switching
device.
With the Series 10 Smart Drive you can no longer turn the machine on by using the cycle buttons,
you must press the Power button first.
The delay start is now 1, 3 or 9 hours; previous models were 1, 6 or 9 hours. This change was
introduced as a result of the last customer survey.
On the Delicate and Permanent Press cycles the medium spin speed can now be selected if required,
the default setting is still the slow spin. This was done to improve the customer's options, as slow
spin left the clothes too damp for some customers.
Electronic Modules are not inter-changeable between models. The different modules for the
different models can be identified by their color. Phase 3 modules are green, Series 8 modules are
yellow and the latest Series 10 modules are Grey.
It is important not to mix the different colored modules as they are not compatible with each other
and you will find that the washing machine will not work. It will automatically display a fault code
and beep if the modules have been mismatched.

STAND BY MODE
If the washing machine has not received any instructions for 15 minutes after being switched on at
the power point or after completing the cycle it will automatically go into a low power Stand By
mode. Before entering the Diagnostic or Option Adjustment modes the machine must be taken out
of the Stand By mode. To do this the power button will have to be pressed on and off or the
machine turned off and on at the power point.
WATER TEMPERATURE SENSING
The Thermistor for sensing the water temperature is now located in the inlet chamber ( GW models
only ) and will be available as a separate spare part under part number 479164P. See specifications
for the temperature/resistance reading.
WATER VALVES
The water valves are now 24 volts and are not interchangeable with previous model Smart Drive
washing machines. The terminals have been changed to the "RAST 2.5" system. Extra care must
be taken to ensure these connections are plugged in squarely to avoid damage to the terminals.
When removing the harness plug from the valve you must release the small retaining clip located on
the solenoid coil behind the plug.
RECIRCULATING VALVE
The Recirculating valve is situated at the bottom of the bowl, and is connected to the pump. If the
valve should leak or block then to service the valve, (working under the machine) remove the hose
clips connecting the hoses to the valve, and remove the screwed clamp around the inlet hose to the
valve. The valve now can remove for cleaning or checking.
The valve can be tested in the DIAGOSTIC mode by pushing the Delicate button. This will turn
the valve on and off.
Note: The valve will take approx. 1 minute to activate and approx. 3 minutes to cool down and
return to it default position.

STATOR
The stator resistance has changed to allow for a lower current through the electronics. This stator is
not interchangeable with the previous models and can be identified by smaller terminal connections.
The resistances of the windings are now 16 ohms per phase.
The rotor has not changed and can be used for all models Smart Drives except Phase 1 models.
RED BLUE YELLOW
SERIES 10 STATOR RESISTANCE
PUMP
The pump now uses a vortex impeller, which reduces the operating sound levels at the end of the
drain cycle.
The way we control the pump has changed. During the drain cycle the pump is stopped and started
quickly every 10 seconds. When the pump stops, the water keeps flowing, flushing away any lint in
the pump chamber.
The pump is now part of the electronic circuit and acts as a brake resistor as well as being part of
the switch mode power supply. We run the pump at 60Hz at the beginning of the drain cycle and
change to 50Hz when the water level reaches the bowl check stage. The pulsing on and off of the
drain pump only occurs during the 60Hz stage.
If the mains voltage drops below approximately 106 VAC, the 60Hz mode is disabled until the
module is reset.
Because the pump is part of the switch mode power supply, it is important to first check the pump
before changing a module for "no power".

If the pump's thermal overload goes open circuit the power to the module will be lost, so no fault
will be reported. When the thermal device has reset, the module will power up normally. This
could take between 3 - 10 minutes depending on the temperature of the pump at the time of
failure.
The number of times the auto restart feature tries to start a stalled pump has been reduced to
prevent nuisance tripping of the pump's thermal overload.
Note:
If the pump has blocked and the thermal overload has gone open circuit, just remove the blockage
from the pump, the module and the pump should still be okay.
If the pump windings are water damaged, the pump will quickly overheat and cut off again. The
pump must be replaced in this case. The electronics should still be okay.
It is important to check the pump windings thoroughly for water damage. It is possible for the
resistance of a water damaged pump to be normal, however the inductance of the pump can
change causing it to overheat and cut out.
There are new fault codes in the system, which now relate to the pump circuit and its extended
function. (Fault code 62, pump over current. Fault code 63, pumps COM's error)
SIZE SETTING MODE (SAME AS SERIES 8)
It is important to set the size of the machine into the Motor Controller's memory whenever a
replacement Motor Controller or Display Module is fitted to the washing machine. Failure to do
this could result in the machine faulting to detailed fault code 9.
To set the size turn the power on at the power point and off at the console. Press and hold the
TEMPERATURE UP button then press the POWER button. The machine will give 4 short
beeps and the pattern of LED's will change.
Press the TEMPERATURE UP button until the COLD LED is on for 5kg & 5.5kg machines.
Press the WATER LEVEL UP button until the LOW WATER LED is on for 6.5kg machines.
Press the SPIN SPEED UP button until the SPIN HOLD LED is on for 7kg/7.5kg machines.
(This is the setting for GWL10)
Press POWER to exit this mode.

3.0 DIAGNOSTIC MODE
The DIAGNOSTIC MODE for mode GWL10 now incorporates both the switch test mode and
the data display mode. You no longer have to use the advance button to toggle between them.
To enter the DIAGNOSTIC MODE:
1. Turn the power on at the power point and off at the console.
2. Press and hold the WASH TEMPERATURE DOWN then press the POWER button. The
machine will give 2 short beep
3. Using the SPIN SPEED UP or the SPIN SPEED DOWN buttons can now extract the
different levels of information.

DATA DISPLAY
Press the SPIN SPEED UP button until the HOLD and SLOW SPIN LED's are on, (Binary
count 3). The WASH PROGRESS LED's will now display the fault code.
By using a BINARY NUMBERING SYSTEM each unique fault code can be given a number.
3.1 EXAMPLES OF BINARY CODE
Wash Progress LED’s Binary Code
Detailed Fault Code 32+16+1=49
Note: The detailed fault code will only be displayed for 1 cycle after the fault has been rectified.

The following tests can be carried out in the diagnostic mode.
3.2 LID SWITCH & OUT OF BALANCE SWITCH TEST
Press the SPIN SPEED UP button until the MEDIUM SPIN LED is on, (binary count 4).
When the Lid is open the 12-minute wash LED will be on.
Activating the Out of Balance lever under the top deck will cause the 6-minute LED to turn on.
Moving the inner basket towards the right hand corner of the cabinet can activate the Out of
Balance lever. It will take up to 1 second for the LED to respond after the Out of Balance has
been activated.
Also when in this mode with the MEDIUM SPIN SPEED LED on, the SPIN LED will display
the SIZE SETTING.
3.3 DRAIN PUMP TEST
The REGULAR CYCLE button turns the drain pump on or off. The REGULAR LED will turn
on when the pump is on. This feature can be used to drain the tub.
3.4 WATER VALVE TEST
Press the WASH TEMPERATURE DOWN button to turn the Cold Water Valve on. The Cold
Water LED will also turn on.
Press the WASH TEMPERATURE UP button to turn the Hot Valve on. The Hot Water LED
will also turn on.
NOTE:
The drain pump test, water valve test, restart and recycle features can be used on any level in the
diagnostic mode.

3.5 RE-START FEATURE
WATER LEVEL DOWN button turns the RE-START feature on/off.
LOW WATER LEVEL LED ON = RE-START ON. (Factory setting).
LOW WATER LEVEL LED OFF = RE-START OFF.
1. If a fault occurs in the machine, the diagnostic system will detect it. However, instead of
displaying a fault code immediately, the machine will try to RE-START.
2. If the fault was only of a temporary nature, the machine will re-start.
3. If there is a continuous fault the machine will try to RE-START a number of times. This
process could take up to 8 minutes depending on the type of fault. After this, if the machine still
cannot restart, the fault code is displayed and the machine will beep continuously.
The machine leaves the factory with the RE-START feature turned on. When the machine is being
serviced it is more convenient to turn the RE-START feature OFF. This will allow any fault in the
system to show up immediately.
Whether the RE-START feature is on or off can be easily identified without going into the
DIAGNOSTIC MODE.
When the machine is first turned on -
(a) If none of the 5 green wash progress LED's are on, the RE-START feature is on.
(b) If the 5 green wash progress LED's are flashing, the RE-START feature is off.
NOTE - This feature is designed as a service aid only and should be left ON in the customer's
home. To return to normal operation, and to reset the RE-START feature to the factory setting,
switch the machine off at the wall or disconnect from the mains supply.
3.6 RE-CYCLE FEATURE
WATER LEVEL UP button turns the RE-CYCLE feature on/off.
MEDIUM WATER LEVEL LED ON = RE-CYCLE ON.
MEDIUM WATER LEVEL LED OFF = RE-CYCLE OFF. (Factory setting).
At the end of servicing, the machine may require an extended test where the machine can be left to
complete a number of wash cycles. By turning on the RE-CYCLE feature the machine will
continuously repeat the wash cycle until the RE-CYCLE feature is turned off.
Whether the RE-CYCLE feature is on or off can be easily identified without going into the
DIAGNOSTIC MODE.
When the machine is first turned on:
(a) If the 3 orange/red rinse and spin progress LED's are on, the re-cycle feature is off.
(b) If the 3 orange/red rinse and spin LED's flash, the re-cycle feature is on.
NOTE - This feature is designed as a service aid only and should be OFF in the customer's home.
To return to normal operation, and to return the re-cycle feature to the factory setting, switch the
machine off at the wall or disconnect from the mains supply.
3.7 HOT TUB FLAG
If the machine has been filled with hot water and has not had a cold rinse the electronics will not
allow the machine to spin up to its full speed of 1000 RPM. It will only allow the spin speed to
reach 700 RPM.
The WATER SAVER LED will be on when the DIAGNOSTIC MODE is selected if the spin
speed is restricted to 700 RPM. To clear this flag press the WASH OPTION button.

3.8 FAULT DISPLAY
If the machine enters a fault mode during normal operation, the machine will display the detailed
fault code on the wash progress LED's and beep continuously. The hold and slow spin LED's will
also be displayed.
During the above process the beeper will sound continuously. It is advisable to switch the
machine off at the wall, switch it on again and select the last fault details by entering the
diagnostic mode.
4.0 WIRING DIAGRAM
PUMP

5.0 DETAILED FAULT CODES
INTRODUCTION
The format for fault description in this booklet follows the Primary, Secondary and Tertiary fault
source system. These sources have mostly been arranged in order of most likely source of fault
but in some cases the sequence has been modified to aid the servicing procedure.
It should be noted that the fault source Pump System includes the pump and drain hose assembly.

FAULT DESCRIPTIONS
1. (00000001) Motor Controller Module Fault
The Motor Controller Module has found a memory error.
Primary Source - Motor Controller Module.
Action - Replace Motor Controller Module.
2. (00000010) Motor Controller Module Fault
An error has been encountered when trying to read the pressure sensor.
Primary Source - Motor Controller Module.
Action - Replace Motor Controller Module.
3. (00000011) Motor Controller Module Fault
The Motor Controller Module has found a memory error.
Primary Source - Motor Controller Module.
Action -Replace Motor Controller Module.
6. (00000110) Motor Controller Module Fault
The Motor Controller Module has received an incorrect signal from the pressure sensor.
Primary Source - Motor Controller Module.
Action - Replace Motor Controller Module.
7. (00000111) Display Module Fault
The Display Module has found a memory fault.
Primary Source - Display Module.
Action - Replace Display Module.
9. (00001001) Size Switch Error
The Display size switch setting does not match that stored in the memory.
Primary Source - Display Module.
Action
If the Display Module for model GWL03 has just been inserted into a console housing, then
check that the two size switch plungers accurately locate onto the console housing. If this fault
has appeared during normal operation of the machine, check the size switch or replace the
Display Module.

Secondary Source - Motor Controller Module.
Action GWL03
If the Motor Controller Module has been changed from one size machine to another, then the size
switch settings in the memory will have to be reset. This can be done by entering and exiting the
Option Adjustment mode. Push and hold START/PAUSE then push POWER button.
Action GWL08 / GWL10
Reselect the size of the machine by using the SIZE SETTING MODE. Push and hold the
WATER TEMP UP button then press the POWER button, to select the size of the machine push
the SPIN SPEED UP button until the HOLD LED turns on.
10. (00001010) Temperature Sensor Error
The temperature sensor may be open circuit or the ambient temperature is below minus l0°C.
Primary Source - Thermistor.
Action - Replace the Thermistor.
11. (00001011) Pressure Sensor Fault
While measuring the water level the Motor Controller micro has detected a negative pressure.
Reconnecting the pressure tube to the pressure sensor while the basket has been partly filled with
water may have caused this.
Primary Source - Motor Controller Module.
Action
1) Check tub is fully pumped out. Remove pressure tube from pressure sensor, clear pressure
tube of any water and reconnect tube.
2) Replace the Motor Controller Module.
12. (00001100) Flood Protection Error
The Motor Controller Module has found the water level to be above the flood level and tried to
pump the excess water out (under extremely high flow rate conditions the machine may overfill
during the "top-up" routine in agitate). After pumping for 30 seconds, it has been unable to lower
the water level below the flood level. Either the water valves are stuck on and are letting water in
at a flow rate that is higher than the pump can handle or the pump is blocked and can't remove the
excess water.
Primary Source - Water Valves.
Action
If the water valves are on continuously, check that the water valves turn off mechanically (remove
power from machine).
Secondary Source - Motor Controller Module.
Action - If water valves are being driven on electrically, replace Motor Controller Module.
Tertiary Source - Pump system.
Action - Check pump for blockage and hose for correct height and kinking.

36. (00100100) Water Leak Fault
The Motor Controller Module has needed to top up the water level more than 4 times during
agitate. This is excessive as normally only one or two top ups are required to replace the air that
has escaped from a full load during agitate. The most likely cause is that the machine is
siphoning. The other alternative is that the machine has developed a leak.
Primary Source - Pump System.
Action
1) Check the height of the drain hose outlet min 33 1/2" (850mm)max 47"(1200mm.)
2) Check hose guide is fitted and check hose does not protrude more than 3/4" (20mm) beyond
the guide.
Secondary Source - Mechanical.
Action
1) Check pressure tube connection on outer tub and Motor Controller Module.
2) Check that the drive shaft seal and the pump housing seal have not developed a leak, by
looking through the front inspection cover.
Tertiary Source - Motor Controller Module.
Action - Replace Motor Controller Module.
37. (00100101) Pump Blocked Error
While draining, the water level reading from the pressure sensor has not changed for over 30
seconds. There are three likely reasons for this fault. One is that the drain hose has been
squashed or kinked and the pump out rate has been dramatically reduced. The second possibility
is that the pump is partially or fully blocked. The third is that the pump is not operating due to
Motor Controller Module, wiring or pump failure. This fault could also appear if the machine is
pumping to an unusually high head of drain hose or into an extended length of drain hose.
Primary Source - Pump System.
Action
1) Check that the drain hose has not been kinked.
2) Check length of drain hose and try to reduce length if excessively long. A 39"(1 metre)
extension hose of the same diameter fitted to the existing drain hose is the maximum
allowable length.
3) If basket empty of water, remove the basket from the top and check that it is not blocked.
Also check the hose is not blocked.
4) If basket contains water, attempt to flick start the pump fan while draining to clear water
before servicing as in 3. If unsuccessful then service pump from the top of the machine by
removing the top deck and inner basket.
5) Check for open circuit windings in the pump. (Note: Pumps are fitted with a thermal cutout,
which will reset on cooling).
Secondary Source - Wiring.
Action
1) Check Pump Harness is connected correctly to pump.
2) Check continuity of pump harness.