Ariston AWD 129 Operating instructions

REPAIR MANUAL
Pages:
1 - 20
The information included in this Ariston Repair Manual may change without notice. Please see our web site
www.usservicenet.com for updates, corrections or additions.
PRODUCT: WASHER / WASHER-DRYER COMBO
MODEL: AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

REPAIR MANUAL
Page: i
This Repair Manual is intended for persons having electrical and mechanical training and a level of knowledge
of these subjects generally considered acceptable in the Appliance Service Industry. Ariston cannot be
responsible, nor assumes any liability for injury or damages of any kind arising from the use or misuse of
the information contained in this Repair Manual.
If you have any questions regarding the proper diagnosis, repair or operation of any Ariston Appliance, please
contact the Ariston Customer Care Center or your Service Representative
SERVICING SAFEGAURDS:
To avoid personal injury and/or property damage, it is important that safe servicing practices be observed at all times. Examples of
safe service practices are listed below but are not limited to the following:
1) Never attempt a product repair if you have any doubts as to your ability to complete the repair in a safe and
satisfactory manner.
2) Before servicing or removing an appliance:
- Disconnect power to the appliance.
- Turn off the gas / LP supply.
- Turn off the water supply.
3) Never interfere with the proper operation of any safety device.
4) Use only genuine factory replacement parts as substitutions may interfere with compliances to home safety codes or standards.
5) It is extremely important that all safety ground connections be reestablished prior to the completion of the service call. Failure to
do so will result in a hazardous condition being created.
6) Prior to returning the appliance back into active service, ensure the following:
- All electrical connections are correct and secure.
- Electrical leads are properly dressed and secured away from sharp edges, high temperature components and moving parts.
- All non-insulated electrical terminals, connectors, heaters, etc. are adequately spaced away from metal parts or panels.
- All safety grounds (both internal and external) are correctly and securely connected.
- All access panels are properly and securely reassembled.
SAFE SERVICE PRACTICES
AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

REPAIR MANUAL
Page: ii
Page
1. Model & Serial Number Locations.................................................................................................. 1
2. Top Panel....................................................................................................................................... 2
3. Control Panel.................................................................................................................................. 3
4. Control Panel Components............................................................................................................. 4
5. Toe Kick & Drain Motor .................................................................................................................. 6
6. Drum Boot...................................................................................................................................... 7
7. Door Switch.................................................................................................................................... 8
8. Water Valves..................................................................................................................................8
9. Heater Assembly (AWD 120 / 121 / 129 Only)..............................................................................................9
10. Pressure Switch............................................................................................................................ 10
11. Rear Access Panel....................................................................................................................... 10
12. Control Board............................................................................................................................... 11
13. Main Motor.................................................................................................................................... 12
14. Fault Codes.................................................................................................................................. 13
15. Schematics................................................................................................................................... 14
TABLE OF CONTENTS
AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

REPAIR MANUAL
Page: 1
1. MODEL & SERIAL NUMBER LOCATION
Fig. 1-3
• Model and Serial Number Tag located on the rear of the Appliance (Fig. 1-3).
• The Model and Serial Number Tag is located on the front of the Appliance behind the door (Fig. 1-1). The Model shown is an
AWD120 with a Serial Number of 403043152 (Fig. 1-2).
Note: Numbers located to the right of the nine (9) digit Serial Number are not required on the Warranty Claim Form.
Fig. 1-1 Fig. 1-2
AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

REPAIR MANUAL
Page: 2
2. TOP PANEL
Fig. 2-4
• To remove the Top Panel, first remove the two (2) Phillips screws located at the rear corners of the panel (Fig. 2-1). With the two
screws removed lift the rear of the panel up approximately three (3) inches and then slide the panel back, moving it away from the
Control Panel (Fig. 2-2)
Fig. 2-2
Fig. 2-1
1
2
Fig. 2-3
• With the Top Panel removed you can see the four (4) alignment slots on top of the Control Panel (Fig. 2-3) that correspond to the
four (4) alignment tabs on the bottom of the Top Panel (Fig. 2-4). When re-installing the panel make sure to align the tabs and
slots and then slide the panel back into place.
AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

REPAIR MANUAL
Page: 3
3. CONTROL PANEL
• To remove the Control Panel, first remove the two Phillips screws located on the top corners of the Control Panel (Fig 3-1).
Fig. 3-1
• Next, remove the wiring from each Switch and the Program Selector. To remove the Switch wiring simply press the Locking Tab
forward and slide the Wiring Connector up and out (Fig. 3-5). Now release the two (2) remaining Control Panel Locking Tabs
located on the bottom rear of the Control Panel (Fig. 3-6) and the complete Control Panel Assembly can be removed.
Fig. 3-5 Fig. 3-6
Fig. 3-2 Fig. 3-4
Fig. 3-3
• Next, remove the Soap Dispenser by grasping it firmly and sliding it out from its housing (Fig. 3-2). Now, remove the Dispenser
Door and Program Guide by lifting out the Hinge Pin (Fig. 3-3) the pin will easily slide up and out. With the Soap Dispenser and
Door completely removed you can remove the two (2) remaining Phillips Screws.
TECH NOTE: When re-installing the Control Panel make sure the bottom edge of the Soap Dispenser Housing rests on top of the
Control Panel opening as shown in the box of Fig. 3-4.
AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

• The Control Panel has three main controls; Push Buttons (A), Knobs (B) and the Program Dial (C).
− To remove a Push Button (A), first mask the area to protect against damaging the Control Panel, then carefully insert a small
screwdriver between the bottom of the Button and the Control Panel (Fig. 4-2), now pry the Button out and off.
− To remove the Knobs (B) or the Program Dial (C), grasp the firmly and pull straight out toward you.
A
Fig. 4-2
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Page: 4
4. CONTROL PANEL COMPONENTS - Switches and Potentiometers
Fig. 4-1
B C
• To remove either the Switches (A) or the Potentiometers
(B), first remove the Button and/or Knob. The Switch and
Potentiometers are held in place by four (4) positioning tabs
(Fig. 4-3). Using a small screwdriver press the tabs inward
then slide the Switch or Potentiometer out from the rear of
the Control Panel.
• On both Fig. 4-4 Switch and Fig. 4-5 Potentiometer you can
see the positioning tabs.
TECH NOTE: The tabs on the Switches and Potentiometers
are very delicate and can easily snap off.
Use care when removing or replacing.
Fig. 4-3
B
AA
Fig. 4-4 Fig. 4-5
AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

REPAIR MANUAL
Page: 5
4. CONTROL PANEL COMPONENTS - Program Selector
1
2
• To remove the Program Selector, first remove the Program Selector Knob by grasping it firmly and pulling it toward you (Fig. 4-6).
With the Knob removed loosen the Phillips Screw and remove the Program Knob Bezel (Fig. 4-7). Now rotate the Program Dial
until the half moon cut out lines up with the Program Selector Locking Tab (Fig 4-8).
Fig. 4-6 Fig. 4-7 Fig. 4-8
• Using a small screwdriver push in on the Locking Tab (Fig. 4-9), while holding the Locking Tab in use your other hand to bring the
bottom of the Program Selector slightly away from the Mounting Plate, and then remove by sliding it up and off (Fig 4-10). In Fig.
4-11 you can see the four (4) alignment tabs that hold the Program Selector to the Program Selector Mounting Plate.
TECH NOTE: The Program Selector Mounting Plate does not have to be removed in order to remove the Program Selector.
TECH TIP: The Program Knob Bezel, Program Dial and Program Knob are all keyed to make re-installation easier.
Fig. 4-9 Fig. 4-10 Fig. 4-11
AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

REPAIR MANUAL
Page: 6
5. TOE KICK & DRAIN MOTOR
• To remove the Toe Kick, carefully insert a small screwdriver into each of the three (3) retention clips pushing each clip down and
then moving to the next clip (Fig. 5-1). With the retention clips released the Toe Kick will unsnap from the base (Fig. 5-2).
Fig. 5-1 Fig. 5-2
• The Drain Motor is held in place with two (2) Phillips screws and a twist lock
fitting (Fig. 5-3). Remove the two (2) Phillips screws, but leave the drain motor
in place until you remove the Bottom Pan in Fig. 5-5.
• With the Toe Kick removed you also have
access to the Drain Clean-out (Fig. 5-4).
Fig. 5-3 Fig. 5-4
• With the two Drain Motor screws removed, carefully lay the Washer on its back and remove the four (4) Phillips screws that hold
the Bottom Pan to the frame. With the Bottom Pan removed twist the Drain Motor Clockwise to release it from its mounting. To
remove the Drain Motor remove the three (3) hose connections and wiring.
TECH TIP: The Drain Hose can be replaced through the Rear Access Panel without removing the Drain Motor, see Section 11.
Fig. 5-5 Fig. 5-6
AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

REPAIR MANUAL
Page: 7
6. DRUM BOOT
Fig. 5-5
• To remove the Drum Boot (Fig. 6-1) start by removing the Door Boot Spring (Fig. 6-2). The Door Boot Spring is located just under
the front lip of the Drum Boot. Using a small screwdriver, slide the screwdriver under the spring and carefully remove it from around
the seal. With the Door Boot Spring removed, unseat the Door Boot from the washer door opening (Fig. 6-3). As you remove the
Door Boot from the door opening note how the seal will be reseated on the door opening when replaced.
TECH NOTE: When reinstalling the Door Boot make sure that the Boot Tab is located at the11:00 O'clock position (Fig. 6-1).
Fig. 6-1 Fig. 6-2 Fig. 6-3
Fig. 6-5Fig. 6-4 Fig. 6-6
• With the Door Boot unseated from the door opening remove the Top Panel as described in Section 2. For easier access to the
Door Boot Clamp Bolt (Fig. 6-5) remove the Soap Dispenser Housing (Fig. 6-4) as described in Sections 3 and 8. Loosen the Door
Boot Clamp Bolt using an 8mm Nut Driver (Fig. 6-6), but do not loosen completely. With the Door Boot Clamp loose you can now
remove the Door Boot.
TECH TIP: When installing the new Door Boot leave the Boot Clamp loosely fit until you seat the Boot to the Outer Drum, then
tighten the Boot Clamp Bolt. Also make sure to water test the unit before replacing the Top Panel to ensure maximum
visibility for possible leaks.
AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

REPAIR MANUAL
Page: 8
7. DOOR SWITCH
Fig. 7-1
• To remove the Door Switch, remove the two (2) T-15 Torx screws (Fig. 7-1). Then remove the
Top Panel as described in Section 2. With the Top Panel removed disconnect the wire harness
from the Door Switch and replace (Fig. 7-2).
Fig. 7-2
8. WATER VALVES
• To remove either Water Valve, first remove its rear mounting screw (Fig. 8-1), then remove the Top Panel as described in Section 2.
Then remove the two (2) Phillips screws for the Valve being replaced (Fig. 8-3). When you remove the valve be careful that you also
remove the Valve Seal (Fig. 8-2) which may still be inserted into the Dispenser Housing. It will be easier to mount the new Water
Valve into the Dispenser Housing if the Valve Seal is already fitted to the Water Valve when replaced.
Fig. 8-1
Fig. 8-2 Fig. 8-3
AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

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Page: 9
9. HEATER ASSEMBLY (AWD 120 / 121 / 129 Only)
INDIVIDUAL COMPONENTS:
A. Blower Motor
B. Heater, 120v / 1200w
C. High Limit Thermostats 340˚f, non-resetable
D. NTC
TECH TIP: Both the High Limit Thermostats
and NTC can be replaced without
removing the Heater Assembly.
Fig. 9-1
C
B
B A
C D
Fig. 9-2
HEATER ASSEMBLY REMOVAL:
When it’s necessary to replace either the
Blower Motor (A) or the Heating Element (B) it
is easiest to remove the complete Heater
Assembly, and then remove the individual
components.
To remove the Heater Assembly, remove the
two (2) 13mm Heater Mounting Bracket Bolts
(Fig. 9-2) and cut the Vent / Boot Zip Tie.
Then lift the Assembly up and off the unit. The
Blower Motor and Heating Element are now
easily accessable.
B
B A
AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

REPAIR MANUAL
Page: 10
11. REAR ACCESS PANEL
10. PRESSURE SWITCH
• To remove the Pressure Switch, first remove the Top Panel as described in Section 2,
then push in on the center support of the Pressure Switch Bracket and slide the Pressure
Switch up and off (Fig. 10-1).
Do not attempt to calibrate the Pressure Switch, replace as a complete assembly.
Fig. 10-1
TECH NOTE: Pressure Switch wiring and function:
Contact 11. Common (BL)
Contact 12. Empty (BR)
Contact 14. Full (W)
Contact 16. Overfill (BK)
Fig. 11-1 Fig. 11-2
• To remove the Rear Access Panel, remove the seven (7) Phillips screws (Fig. 11-1). With the Rear Access Panel removed you
have access to the following components (Fig. 11-2); Water Temperature NTC (A), Main Motor & Belt (B), Drain Hose (C) and
Control Board (D).
A
B
D
C
AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

REPAIR MANUAL
Page: 11
12. CONTROL BOARD
A
Pressure Switch
NTC’s / LED’s
Program Selector Module
Selector Switches / Potentiometers
Water Valves
Blower Motor / Drain Motor
Main Motor
Heater
Surge Protector
On/Off Switch / Door Switch
TECH NOTE
• To remove the Control Board, remove the two (2) T-15 Torx screws located at the rear right corner of the
unit. Also remove the plastic cap (A) by prying it off with a small screwdriver (Fig. 12-1). Disconnect the
wire harness connections and remove the Control Board through the rear access opening.
Fig. 12-1
TECH NOTE: Replacement Control Boards DO NOT come with the EEPROM Chip installed. You must
order the EEPROM Chip which corresponds to the Model Number being serviced
separately. Remember to always order the Control Board AND EEPROM Chip. Use care
when installing the EEPROM Chip making sure not to bend any of the contact prongs.
A
AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

REPAIR MANUAL
Page: 12
13. MAIN MOTOR
Fig. 13-1
Fig. 13-2 Fig. 13-3
• To remove the Main Motor, first remove the Drive Belt and then the two (2) 13 mm Motor Mounting Plate Bolts (Fig. 13-1). The
Main Motor has three support points, two in the front (A) and a third located on a Rear Mounting Bracket that supports the Motor on
the rear left side (Fig. 13-2). Brace the Motor as you remove the two Mounting Plate Bolts, when both bolts are clear bring the
Motor out toward you freeing it from the rear support (Fig. 13-3). Remove the two (2) 8mm Bolts that attach the Plate to the Motor.
AA
AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

REPAIR MANUAL
Page: 13
14. FAULT CODES (all Models except AW125)
A repair fault is signaled by the continuous rotating of the Program Knob and the flashing of the Door Locked LED. The Fault Code is
determined by counting the sequence of individual flashes of the LED (2 flashes = F2). The LED will flash the Fault Code sequence
and then delay for approximately eight (8) seconds, repeating the Fault Code sequence and eight second delay continually.
TECH NOTE: The unit can be turned off without harm and the Fault Code sequence will repeat when power is reapplied.
F1. Triac Short
Replace Control Board.
F2. Main Motor
Check Main Motor connections.
Replace Main Motor.
Or, replace Control Board.
F3. NTC (Water Temp) Open / Short
Check wiring continuity to Control Board.
Replace NTC.
Or, replace Control Board.
F4. Pressure Switch
Check wiring continuity to Control Board.
Replace Pressure Switch.
Or, replace Control Board.
F5. Blocked Drain Motor or Pressure Switch shorted in Empty position
Check Drain Hose.
Check Drain Motor clean out for obstruction.
Check voltage at Drain Motor.
Check Pressure Switch wiring continuity.
Replace Drain Motor / Pressure Switch.
Or, replace Control Board.
F6. Program Selector
Check wiring continuity to Control Board.
Replace Program Selector.
Or, replace Control Board.
F7. Not Used
F8. Pressure Switch Shorted in Full Position
Check Pressure Switch wiring continuity.
Or, replace Pressure Switch.
Or, replace Control Board.
F9. Control Board Error
Incorrect version of Control Board or EEPROM.
Change Control Board and EEPROM.
F10. Pressure Switch Shorted
Check wiring continuity to Control Board.
Replace Pressure Switch.
Or, replace Control Board.
F11. Drain Motor
Check wiring continuity to Control Board.
Check Drain Motor clean out for obstruction.
Voltage check at Drain Motor.
Check Pressure Switch.
Replace Drain Motor.
Or, replace Control Board.
F12. Not Used
F13 - F16 Apply Only AWD Models
F13. NTC (Dryer Temp) Open / Short
Check wiring continuity to Control Board.
Replace NTC.
Or, replace Control Board.
F14. Dryer Heating Element is Open
Check Dryer Heating Element continuity.
Check wiring from Element to Control Board.
Replace Heating Element.
Or, replace Control Board
F15. Dryer Heating Element Relay Shorted
Check Dryer Heating Element continuity.
Check wiring from Element to Control Board.
Replace Control Unit.
F16. Not Used
AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

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Page: 13
14. FAULT CODES AW 125
AW 120 / AW 122 / AW 125
AWD 120 / AWD 121 / AWD 129

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15. SCHEMATICAW 120 / AW 122

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15. SCHEMATICAW 125

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15. SCHEMATIC AWD 120 / AWD 121 / AWD 129