22
Trouble Shooting
Sleeping/rest mode: Battery indicator flashes every 5 seconds indicates machine has been idle for more than 20 minutes. V
ario functions disabled cycle key switch!
Number of bars flashing on display
Fault
Possible Cause
Ef
fect on Product
Investigate the Following
Action Required
If Fault
Persists.
* 1 Bar flashes continuously
* Batteries voltage low
.
* Batteries not been charged.
* Possible bad connection between batteries,
controller
, charger or fuses caused by loose
connections ,
damaged wiring , water ingress.
* Not accepting charge due to faulty battery/cell.
* Charger not functioning.
* Operating time severely reduced
or machine will not operate.
* Check when machine last charged.
* Switch OFF the machine.
* Remove Fuses.
* Check connections to batteries, charger and
fuses for loose wires or screws.
* Check each battery V
oltage individually to detect
defect unit 10.5V min.
* Check battery voltage and charge current.
ensuring charger red fault light is extinguished.
* Charge batteries immediately
.
* T
ighten loose connections and replace dam
-
aged components.
* Replace batteries as required.
* Replace charger
.
* 2 Bars Flash continuously
.
* T
raction drive overload.
* T
raction drive over current trip due to too high
a load.
* T
raction drive is disconnected or has bad con
-
nection due to wiring or
connectors becoming damaged, loose or cor
-
roded due to water ingress.
* Brake engaged no movement.
* Did machine fail on incline. Check traction wheel
free from debris.
* Cycle Key switch to resume normal operation.
If the above fails then: Switch machine of
f.
Check connections and harness between drive
motor and controller
.
* Cycle key switch to resume normal opera
-
tion.
* T
ighten loose connections and replace dam
-
aged components.
3 Bars Flash continuously
.
Brush motor over current trip has
occurred.
Rough floor surface.
Brush motor has failed or is
damaged..
Brush motor bad connection.
* Intermittent brush trip.
* Brush Motor doesn’t run or runs
intermittently
.
* Brush type suitable for floor surface.
“ Cycle Key switch to resume normal operation.
* If the above fails then: Switch of
f machine.
* Check brush motor for damage.
* Check brush motors turn freely
.
* Cycle key switch to resume normal operation.
* If the above fails then.
* Switch machine of
f.
* Check connections and harness between Brush
Motor and controller
.
* Check BRUSH Motor connections block under
-
neath chassis , behind mud guard for loose wires
and loose screws.
* Cycle key switch to resume normal operation.
* Change brush , adjust brush speed and
reduce
pressure by turining adjustment knob anti
-
clockwise.
* Replace ef
fected motor or wiring.
* 4 Bars Flash once with pause.
* System trip.
* System failure.
* Machine will not operate.
* Replace controller
.
* 4 Bars Flash twice with pause.
* Spare Solenoid connection trip.
* System has been incorrectly rewired.
* Machine will not operate.
* Refer to wiring diagram and check the solenoid/
water/detergent pump wiring configuration.
* Rectify wiring fault found.
* 5 Bars flash continuously
.
* V
ac Motor is disconnected, has failed
open circuit, has a bad
connection or water ingress -
temperature trip activated.
* Wiring between V
ac motor and
Controller is damaged, wiring is loose or wiring
connections are loose, possibly wire has come
out of a
connection block - blocked exhaust.
* V
ac motor will not operate.
“ Cycle Key switch to resume normal operation.
* If the above fails then:
* Switch of
f machine.
* Check for loose or damaged wiring and
connections between V
ac motor and controller
.
* Cycle key switch to resume normal operation.
* T
ighten loose connections and replace
damaged components - check exhaust clean
if necessary
.
Contact Service Agent.
Summary of Contents for TTV 678-300T
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Page 27: ...27 ...
Page 29: ...29 Notes ...
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