Clarke Clean Track® L24 56317170 Service Manual page 68

Status LED Fault Codes (Table 1)
LED Status Light
Code Display
1,1 0 0
1,2 0 00
1,3 0 000
1,4 0 0000
1,5 0 00000
2,1 00 0
2,3 00 000
2,4 00 0000
3,1 000 0
3,2 000 00
3,3 000 000
3,4 000 0000
3,5 000 00000
4,1 0000 O
4,2 0000 00
4,3 0000 000
4,4 0000 0000
* Jack up vehicle and retest to confirm diagnosis. Clean the connections, inspect system wiring, then retest.
**Note: A KSI (Key Switch Input) system problem is a specific HPD (high pedal disable) type operational fault caused by
the operator activating the Forward/Reverse drive paddle before turning on the main Key Switch. This can be cleared
by returning the operator's drive paddle to neutral, then cycling the Key Switch OFF and ON.
68 - Form No. 56043161 - Clean Track
Explanation
over-/under-temperature cutback
throttle fault
speed limit pot fault
battery voltage too low
battery voltage too high
main contactor driver Off fault
main contactor fault
main contactor driver On fault
fault present for >10 sec.
brake On fault
pre-charge fault
brake Off fault
HPD (High Pedal Disable) fault
current sense fault
motor voltage fault (hardware fail-
safe)
EEPROM fault
power section fault
L24
®
Possible Cause
1. Temperature >92°C or < -25°C.
2. Excessive load on vehicle
3. Operation in extreme environments.
4. Electromagnetic brake not releasing.
1. Throttle input wire open or shorted
2. Throttle pot defective.
3. Wrong throttle type selected.
1. Speed limit pot wire(s) broken or shorted.
2. Broken speed limit pot.
1. Battery voltage <17 volts.
2. Bad connection at battery or controller.
1. Battery voltage >36 volts.
2. Vehicle operating with charger attached.
3. Intermittent battery connection.
1. Main contactor driver failed open.
1. Main contactor welded or stuck open.
2. Main contactor driver fault.
3. Brake coil resistance too high.
1. Main contactor driver failed closed.
1. Misadjusted throttle.
2. Broken throttle pot or throttle mechanism.
1. Electromagnetic brake driver shorted.
2. Electromagnetic brake coil open.
1. Low battery voltage.
2. KSI and throttle turned on at same time.
1. Electromagnetic brake driver open.
2. Electromagnetic brake coil shorted.
1. Incorrect sequence of throttle and KSI,** push, or inhibit
inputs.
2. Misadjusted throttle pot.
1. Short in motor or in motor wiring.
2. Controller failure. *
1. Motor voltage does not correspond to throttle request.
2. Short in motor or in motor wiring.
3. Controller failure. *
1. EEPROM failure or fault.
1. EEPROM failure or fault.
2. Short in motor or in motor wiring.
3. Controller failure. *