36
Maintenance
LED
CODE
PROGRAMMER LCD DISPLAY EXPLANATION POSSIBLE CAUSE
3,1 PROC/WIRING FAULT HPD fault present for >10 sec.
1. Misadjusted throttle.
2. Broken throttle pot or throttle
mechanism.
3,2 BRAKE ON FAULT brake On fault
1. Electromagnetic brake driver
shorted.
2. Electromagnetic brake coil
open.
3,3 PRECHARGE FAULT precharge fault
1. Low battery voltage.
2. KSI and throttle turned on at
same time.
3,4 BRAKE OFF FAULT brake Off fault
1. Electromagnetic brake driver
open.
2. Electromagnetic brake coil
shorted.
3,5 HPD HPD (High Pedal Disable) fault
1. Improper sequence of throttle
and KSI,
push, or inhibit inputs.
2. Misadjusted throttle pot.
4,1 CURRENT SENSE FAULT current sense fault
1. Short in motor or in motor
wiring.
2. Controller failure.
4,2 HW FAILSAFE motor voltage fault (hardware)
1. Motor voltage does not corre-
spond to throttle request.
2. Short in motor or in motor
wiring.
3. Controller failure.
4,3 EEPROM FAULT EEPROM fault 1. EEPROM failure or fault.
4,4 POWER SECTION FAULT power section fault
1. EEPROM failure or fault.
2. Short in motor or in motor
wiring.
3. Controller failure.
86347810 Chariot iVacuum 34
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