Dyson DC22 - AC Electrical Fault Diagnostics (Models with Finger Tip Controls Only)

Service manual
Technical info.
04
No power to either motor
1. Check for damage/electrical failure to the plug and powercord.
2. Check the resistance across the fuse (UK only).
3. Check mechanical connection at points 1-8.
4. Check the resistance between the live pin on the plug and point 1.
5. Check the resistance between the neutral pin on the plug and point 2.
6. Check the resistance between points 1 and 8.
7. Check the resistance between points 2 and 7.
No power to the vacuum motor (brushbar motor operates)
1. Ensure that the motor wires are attached to points J2 and J4 of the PCB assembly EMC.
2. Ensure that the wires are attached to points 15 and 16 on the vacuum motor.
3. Check the resistance between points 3 and 16.
4. Check the resistance between points 4 and SA1 on the motor PCB.
5. Check the resistance between points SA2 on the motor PCB and 15.
6. Replace the Motor/PCB loom assembly.
7. Replace the motor.
8. Replace the satellite assembly.
No power to the brushbar motor (vacuum motor operates)
1. Check the resistance between points 9 and 12.
2. Check the resistance between points 10 and13.
3. Check the resistance between points 11 and 14.
4. Replace the Motorhead floor tool assembly and retest.
5. If after retesting the product the brushbar motor still does not work replace the satellite assembly.
Unable to turn on the product using the fingertip controls
1. Check the wand handle LED is illuminating when the buttons are pressed. If not, replace the
batteries.
2. If the LED is illuminating re-tune the wand handle to the machine (see page 8 for details).
3. Check that the Antenna is not damaged and is sufficiently attached to point SA1 of the satellite
assembly.
4. Replace the satellite assembly.
Brushbar operates in the stowed position or when lifted off the floor (Motorhead models only)
1. Replace the Motorhead floor tool assembly and retest.
2. If after retesting the product the brushbar still operates in the stowed position or when lifted off the
floor replace the satellite assembly.
Unable to turn on the product using the button on the main body
1. Check the mechanical actuation of the ON/OFF switch.
2. Check the resistance across the switch.
3. Check the resistance between points 17 and the relevant point on J2 of the satellite assembly.
4. Check the resistance between points 18 and the relevant point on J2 of the satellite assembly.
5. Replace the satellite assembly.
AC electrical fault diagnostic (models with finger tip controls only)