Dyson AB09 User manual

Issued July 13
dyson
diagnostic Service manual

SENSOR
TIP
TIP
Always ensure the product is isolated from the
main Live supply prior to installing/repairing.
Important safety information - read before proceeding further
01
To avoid injury to yourself or the end user, all necessary safety tests as per local codes and regulations
must be carried out prior to, and upon completion of all repairs/installations to AB09/10/11.
Introduction
The instructions contained within this guide must be read carefully before attempting to repair the
AB09/10/11 hand dryer. Failure to accurately follow the instructions may result in the incorrect
operation or repair of the product, damage to property and/or personal injury. Dyson will not be
held liable for any damage to property or personal injury as a result of failure to comply with the
instructions contained herein.
IMPORTANT SAFETY INFORMATION - Read before proceeding further
All electrical installation and repair work should be carried out by a qualified electrician or Dyson
trained Service Engineer in accordance with current local codes or regulations.
Risk of electric shock! If casing is removed or handled improperly the internal components of the unit
may cause harm or become permanently damaged.
BEFORE INSTALLATION
Before beginning any installation work you must confirm the following.
WIRING
• Check that the electrical supply corresponds to that shown on the rating plate. If the unit is
connected to any electrical supply other than stated on the rating plate of the unit, permanent
damage or improper/unsafe operation of the hand dryer may result.
• A means for all-pole disconnection must be incorporated into fixed wiring, in accordance with
national and local wiring regulations.
• When connecting the unit to the electricity supply use cable in accordance with national and local
laws and applicable codes and standards.
• Ensure that the conduit and wires are long enough to connect to the backplate and the terminal
block.
SAFETY
• Isolate the power before installation/repair/service.
INSTALLATION
• Make sure that the unit is installed in compliance with all building codes and/or regulations.
• The unit must be mounted on a flat vertical wall capable of supporting the full weight of the unit.
• Use fixings as specified in this installation guide.
• Ensure no pipe work (gas, water, air) or electrical cables, wires or duct work are located directly
behind the drilling/mounting area.
• Dyson recommends the use of protective clothing, eye ware and materials when installing/
repairing as necessary.
• Do not use sealant when fixing the unit to the wall.
• Do not use any jet wash equipment for cleaning on or near this unit.
• This appliance is intended to be permanently connected to the water mains.
• The water supply to this product must be fitted with a temperature control device in accordance
with local regulations (in the US and Canada must comply with ASSE 1070 so that hot water
delivered from this product is limited to a maximum temperature of 49oC/120oF).

02
Protective safety footware must be worn when installing/repairing AB09/10/11.
LOCATION
• The unit is designed for dry, internal location only.
• Consult local and national accessibility codes and regulations for relevant installation guidelines.
Conformity and compliance is the responsibility of the installer.
• Ensure the required electrical and mixed feed water supplies is available for later connection.
• Water pressure must be: maximum 8 bar (0.8Mpa) and minimum 1 bar (0.1Mpa).
• The sink should not be fitted with a plug.
• When drilling holes, follow the instructions of the manufacturer of the work surface.
Recommended tools to repair AB09/10/11:
1.5mm allen key
Torx T-15 screwdriver
Torx T-10 screwdriver
No. 2 sized Phillips screwdriver
Thin flat bladed screwdriver
Long/needle nosed pliers
Aerator tool
Tap spanner/wrench
1. Insert hands beneath the centre of the tap to
automatically start the mixed water flow. If hands
remain in place the water will continue to flow for
a maximum of 30 seconds before automatically
switching off.
2. Place hands beneath the tap arms to start the
airflow. The water flow will automatically
stop.
3. Draw hands though the airflow. Hands should
be dry within approximately 12 seconds
(14 seconds US and Canada).
The airflow should stop within 4 seconds of hands
being withdrawn from the product.
If hands remain in place the air will
automatically cut off after 30 seconds before
automatically restarting again after 4 seconds.
Testing for correct operation

03
Symptom Solution (in order)Likely fault See section
4 (page 21)
1 (page 05)
2 (page 12)
2 (page 12)
4 (page 21)
2 (page 12)
4 (page 21)
No water, reduced
water flow. Air
working.
1. Ensure mains water
supply to the product
is switched on.
2. Faulty/blocked
Aerator.
3. Faulty Solenoid.
4. Solenoid to PCB
loom assy failure.
5. Comms to PCB
loom assy failure.
6. PCB assy (Tap)
failure.
7. Power supply assy
failure.
8. Water pipe service
assy failure.
•Check Aerator for blockages. Replace
if necessary.
•Check Solenoid functions. Replace if
necessary.
•Check Solenoid to PCB loom assy for
fitting/function. Replace if necessary.
•Check Comms to PCB loom assy for
fitting/function. Replace if necessary.
•Check PCB assy (Tap) for alignment
function. Replace if necessary.
•Check Power supply assy for function.
Replace if necessary.
•Check Water pipe service assy for
blockages. Replace if necessary.
Water on all the
time.
1. Faulty Solenoid.
2. Solenoid to PCB
loom assy failure.
3. PCB assy (Tap)
failure.
4. Lens housing assy
failure.
•Check Solenoid functions. Replace if
necessary.
•Check Solenoid to PCB loom assy for
fitting/function. Replace if necessary.
•Check PCB assy (Tap) for alignment
function. Replace if necessary.
•Check Lens housing assy is clean.
Replace if necessary.
Air on all the time.
No power
(No water/No air).
1. PCB assy (Tap)
failure.
2. Lens housing assy
failure.
1. Fault with mains
power supply to
product.
2. Power supply assy
failure.
•Check PCB assy (Tap) for alignment
function. Replace if necessary.
•Check Lens housing assy is clean.
Replace if necessary.
•Ensure mains power supply to product
is switched on.
•Test to ensure mains power supply to
connector block is present.
•Replace Power supply assy.
1 (page 05)
2 (page 12)
4 (page 21)
4 (page 21)
4 (page 21)
4 (page 21)
2 (page 12)
The following table summarises a number of potential failures, and recommended solutions to resolve
them.

04
Symptom Solution (in order)Likely fault See section
4 (page 21)
2 (page 10)
1 (page 05)
No air/reduced
airflow. Water
working.
Machine switching
on intermittently -
water and air.
or
Cutting out in use.
1. Fault with Air
hose assy.
2. Fault with Motor
bucket assy.
1. PCB assy (Tap)
failure.
2. Lens housing assy
failure.
3. Comms loom
assy failure.
4. Power supply assy
failure.
•Check PCB assy (Tap) for alignment
function. Replace if necessary.
•Check Lens housing assy is clean.
Replace if necessary.
•Ensure Comms loom assy
is adequately attached both ends.
•Test Comms loom assy for resistance
and replace if necessary.
•Check Power supply assy for function.
Replace if necessary.
•Ensure Air hose assy is adequately
sealed onto threaded Tap stem.
•Check Air hose assy for splits and
replace if necessary.
•Replace Motor and Bucket Service assy.
4 (page 21)
4 (page 21)
2 (page 12)&
4 (page 21)
2 (page 12)
2 (page 12)

05
Section 1
Solenoid assembly removal
01 02
03 04
06 05

01 Using a small flat bladed screwdriver, unclip and remove the HEPA filter from the base of the
Motorbucket.
02 In some cases a T-15 screw may have been fitted into the Motorbucket release button. If this is the
case, remove.
03 Press the Motorbucket release button and remove the Motorbucket.
04 Disconnect the mains water supply from the Solenoid assembly.
05 Remove the two T-15 screws in the water cover.
06 Loosen the water pipe clip on the water pipe.
07 Disconnect the Solenoid connector and remove from the Solenoid to PCB loom.
Remove the two Phillips screws.
08 Unclip the Solenoid from the Backplate.
09 Detach the Solenoid from the water pipe.
06
Section 1
Solenoid assembly removal
Warning: before continuing ensure the power and water supplies to the the machine are switched off.
07 08
09

13
11
12
14 15
07
10
Section 1
Solenoid assembly fitting

18
17
16
08

09
10 Push the water pipe as far as possible onto the new Solenoid.
11 Clip the solenoid into the Backplate.
12 Connect the Solenoid to the Solenoid to PCB loom.
13 Locate the water pipe clip onto the end of the water pipe and fasten into place.
Fit the two Phillips screws.
14 Attach the mains water supply to the Solenoid.
15 Turn on the mains water supply. Check that there are no leaks at the Solenoid inlet.
Turn on the power to the product. Insert hands under the centre of the tap to activate the water.
Check that there are no leaks at the Solenoid outlet.
16 Refit the water cover and two screws.
17 Hook the top of the Motorbucket into the backplate. Push the bottom of the Motorbucket into
position in the backplate.
If previously fitted, fit the T-15 screw into the Motorbucket release catch.
18 Clip the HEPA filter assembly into the base of the Motorbucket.
After reassembling the product follow the instructions on page 2 to test the product for adequate
operation.
Section 1
Solenoid assembly fitting

01 02
03 04
10
Section 2
Air hose/Tap assembly removal
Before continuing please follow steps 1-3 and 5-6 of Section 1 of this manual.
AB09/10 only
AB11 only AB11 only 05 06

11
08 07
10 09
11
AB11 only All models
AB11 only All models
AB09/10 only

12
12
Section 2
Power supply assembly removal
Before continuing please follow steps 1-3 and 5 of Section 1 of this manual.
Communications
PCB loom assembly
13
14 15

13
Air hose/Tap assembly removal
Before continuing please follow steps 1-3 and 5-6 of Section 1 of this manual.
All models:
01 Remove the six T-15 screws in the electrical cover.
02 Disconnect the Comms loom from the Comms to PCB loom.
03 Unclip the Air hose assembly from the Backplate.
AB09/10 only:
04 Unscrew the Air hose assembly from the threaded tap stem.
AB11 only:
05 Unscrew the Glamour cap from the Tap stem.
06 Remove the four screws attaching the Tap to the ducting.
07 Carefully pull the Tap and Air hose assembly out of the ducting.
All models:
08 Release the grommet attached to the Comms loom from the base of the Air hose assembly.
AB11 only:
09 Unscrew the Hose assembly from the Tap shell.
All models:
10 Firmly pull the water pipe assembly and Comms loom out of the Air hose assembly.
AB09/10 only:
11 Remove the main nut attaching the Tap assembly to the worktop. Remove the Tap assembly.
Power supply assembly removal
Before continuing please follow steps 1-3 and 5 of Section 1 of this manual.
12 Remove the six T-15 screws in the electrical cover.
Disconnect the Live and Neutral wires from the connector block. Carefully disconnect the Comms
to PCB loom and the Solenoid to PCB loom from the PCB assembly.
13 Remove the T-15 screw from the Connector block and the T-10 screw from the centre of the PCB.
14 Tilt the bottom of the PCB out of the Backplate and slide the PCB down to clear the
communications cable grommet.
15 Slide the Power supply assembly away from the backplate.
Section 2
Air hose/Tap/Power supply assembly removal
Warning: before continuing ensure the power and water supplies to the the machine are switched off.

03
Section 2
Power supply assembly fitting
14
04
After fitting the Electrical cover, the existing parts should be fitted as previously shown
(page 8, steps 16-18).
02
01

15
06
Air hose/Tap assembly fitting
AB11 only
AB11 only 10 09
08 07
05
AB11 only
AB11 only
All models
AB09/10 only

16
13
11
12
After fitting the Electrical cover, the existing parts should be fitted as previously shown
(page 8, steps 16-18).
14

Power supply assembly fitting
01 Slide the new Power supply assembly into place.
02 Tilt the Power supply underneath the communications cable and locate into the Backplate.
Ensure the female connector block clicks into place.
Fit the T-10 screw into the centre of the PCB and the T-15 screw into the connector block.
03 Connect the Comms to PCB loom to the PCB assembly.
Connect the Solenoid to PCB loom assembly to the PCB.
Connect the Live and Neutral wires to the correct terminals of the connector block.
04 Fit the Electrical cover and six T-15 screws.
Refit the remaining components as detailed in steps 16-18 in Section 1 of this manual.
After reassembling the product, turn on the mains water and electricity supply and test the product by
following the instructions on page 2 of this manual.
Air hose/Tap assembly fitting
AB09/10 only:
05 If previously removed, locate the new Tap assembly into the worktop, ensuring that the larger of
the two seals sits on top of the worktop, and the smaller on the underside. Fit and tighten the Tap nut.
All models:
06 Feed the water pipe assembly through the smaller of the two holes in the base of the Air hose
assembly. (Note: pliers may be necessary to aid pulling it through).
Feed the Comms loom assembly through the larger of the two holes.
Important: ensure the grommet is adequately seated within the hole.
AB11 only:
07 Screw the Air hose assembly tight onto the Tap stem.
08 Lower the Tap and Air hose assemblies down into the ducting within the wall.
09 Align the Tap assembly with the four screw holes in the ducting. Fit the four screws.
10 Screw and tighten the Glamour cap onto the Tap stem mount.
All models:
11 Slide the water pipe clip onto the end of the water pipe. Locate the Water pipe assembly fully onto
the Solenoid outlet.
Fit and tighten the Water pipe clip.
12 Connect the Comms loom to the Comms to PCB loom assembly. Dress neatly as shown.
Clip the Hose into the Backplate.
13 Fit the Electrical cover and six T-15 screws.
14 Turn on the mains water supply. Check that there are no leaks at the Solenoid inlet.
Turn on the power to the product. Insert hands under the centre of the tap to activate the water.
Check that there are no leaks at the Solenoid outlet.
Refit the remaining components as detailed in steps 16-18 in Section 1 of this manual.
After reassembling the product follow the instructions on page 2 to test the product for adequate
operation.
Section 2
Air hose/Tap/Power supply assembly fitting
17

18
Section 3
Backplate replacement removal
Before continuing the following parts need to be removed as previously shown:
the Solenoid assembly (pages 5-6), and the Air Hose and Power supply assemblies (pages 10-13).
01 02
04
03
05

02
03
05
04
01
Section 3
Backplate replacement fitting
19