Hillyard TRIDENT T20SC PRO, Service Manual

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The vacuum motor doesn’t work properly
1. The vacuum motor is switched off ⇒ Switch on the vacuum motor.
2. The vacuum motor is not powered
properly ⇒ Check the power connections on the
vacuum motor.
3. The display shows an alarm mes-
sage ⇒ Check what alarm message is
shown and solve the related issue
by following the proper instructions
(see section 3.6 at page 16 )
.
4. The vacuum motor carbon brushes
are worn out ⇒ Replace the vacuum motor carbon
brushes
(see section 7.4.7 at page 55 )
.
5. The vacuum motor is supplied but
it doesn’t work ⇒ Replace the vacuum motor
(see section
4.3.6 at page 24 )
.
6. The vacuum motor switch doesn’t
work ⇒
Replace the dashboard card.
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