Dyson DC19 - Fault diagnostic (no power)

service manual
Diagnostic
Action
Possible cause
Image
No.
1
4
5
3
2
Socket wiring fault
Faulty fuse
Open circuit across
cable rewind
Faulty switch
Loose connection between
cable reel & wiring harness
Symptom: No power
Check customer's plug socket - field service only (refer to technical section)
Check fuse for correct rating - UK only (13amp). Test resistance, (1Ω max.)
Visual check of mains cable, plug and fly leads. Test resistance, (1Ω max.)
Check connections. Test resistance, (1Ω max.)
Check connections onto switch. Test actuation and resistance, (1Ω max.)
Check connections between the wiring harness and motor. Test resistance, (1Ω max.)
Test resistance, (7Ω approx.) Check motor (terminal clips, soldered connections,
brushes, windings, thermal cut-out)
Poor connection to motor
Open circuit across motor
1
2
3
4 5
14