XO 4 & XO FLEX TROUBLE SHOOTING GUIDE
Version 3.30 6
“WATER LEAK!!” “CALL SERVICE” .................................................................... 56
Water pressure failure on the instrument bridge .................................................................... 56
Air pressure failure on the instrument bridge. ........................................................................ 56
Fault in air pressure to instrument bridge .............................................................................. 57
No Flush or Rinse ...................................................................................................................... 57
No cup filling. ............................................................................................................................ 57
The liquid detection sensor pins do not work properly. ......................................................... 59
Lower LED off (Mixing cup filled) ........................................................................................... 59
Upper LED remains off when water reaches the short liquid detector sensor probes............ 59
Information: ........................................................................................................................... 59
Water clean mixing cup is detected as empty when the cup is filled. .................................... 60
The "Water Clean" dispenser detected as "low" when full (white bottle). .............................. 61
The liquid in the bottle does not circulate .............................................................................. 61
Information: ........................................................................................................................... 61
AN-374 Level Sensor PCB ..................................................................................................... 61
No water in the container. ...................................................................................................... 62
Overflow (mixing Cup). .......................................................................................................... 63
Air bubbles “shoots” water out of mixing cup. ....................................................................... 63
Valves & contacts connections in the "Basic configuration" and "suction cleaning". ............ 65
Overflow (mixing cup) ............................................................................................................ 65
The Mixing cup is detected as empty when filled .................................................................. 66
The suction cleaning liquid is detected as "low" while the bottle is full (Yellow bottle) .......... 66
Unpleasant smells from the suction ....................................................................................... 66
Suction does not start when one of the suction hoses is lifted but suction motor starts. ...... 69
Suction starts when the unit is switched on ........................................................................... 69
No suction: (Valves activated / spittoon valve / CAS1 / Amalgam separator activated) ......... 69
Connection Diagram .............................................................................................................. 69
The chair does not run properly (hacking while moving). ....................................................... 70
No movement of the chair when the joystick or control pedal is activated. ........................... 70
The backrest motor does not work ........................................................................................ 71
The backrest motor locks up when going up. ........................................................................ 71
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