Tennant T981 Manual De Instrucciones página 38

means of the status LED. In the absence of malfunctions, the status LED remains permanently alight while the machine
is in operation.
ERROR CODE
ALARM A1
ALARM A2
ALARM A3
ALARM A4
ALARM A5
ALARM A6
ALARM A7
ALARM A8
ALARM A9
ALARM A10
ALARM A11
ALARM A12
ALARM A13
ALARM A14
DRIVE WHEEL PCB ALARMS
CAUSE
Forward Drive switch closed at start-up
Reverse Drive switch closed at start-up
Potentiometer fault
Potentiometer not on zero at start-up
Thermal cutout
Drive circuit board fault
Overcurrent (motor fault)
Fuse or power contacts damaged (drive circuit board fault)
Undervoltage
Overvoltage
Overload
Disable microswitch active (input fault)
Key shutdown sequence active (input fault)
Internal memory alarm (drive circuit board fault)
EN
SOLUTION
Contact Service
38