NaceCare Solutions TTV678 - Manual (Page 24)

233890 05/11 (A03) 24
T
rouble 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 - block 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.