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CHAPTER 4: TROUBLESHOOTING
4.3 ERROR CODE LIST
02XX: LCB Errors
CODE CLASS DESCRIPTION MACHINE SOLUTION
02AB C
Machine type
error.
C Change the machine type on the console to match the correct frame.
02A0 C Encoder error C
a. Check the connection of the speed sensor cable from the LCB to the speed sensor.
b. Check to see if LED19 on the LCB is on when the brake is turned to the left release
position.
c. If it is off, move the stairs about 3 stairs and check to see if LED19 is flashing.
- If not, replace the first speed sensor (near the brake).
- If yes, adjust the first speed sensor position and clean the speed sensor of any
debris then re-test.
02B2 C
Safe key action
response
C
a. Check the connection of the safety key (emergency stop) switch. If the switch is
always open or shorted out, replace the switch.
b. If the emergency stop does not resolve the issue, replace the UCB.
02B4 C
Resistance
Type Error.
C
a. Make sure machine type is set for the correct frame in console.
- If yes, replace LCB.
- If no, change to correct type and reboot the power.
02BF C
DC brake Over
Current
C
a. Check the power extend wire connection between the brake and LCB for any damage.
b. Check to see if the stairs will move when you are in the stop position. If yes, replace
the brake.
02C0 C
DC brake in
manual mode.
C
a. Check if the DC brake is in the right, lock position. Turn the brake (move to the right) if
in release position.
b. Replace the brake.
02C1 C
Speed tracking
error
C
a. Adjust the speed sensor position and clean the speed sensor of any debris.
b. Check the ECB extension cable connection at the LCB (pins 1 & 3 for ECB1), there
should be between 9.5 ~ 10.9 ohms, check which ECB is outside the range and replace
it.
01XX: Motor Errors
CODE CLASS DESCRIPTION MACHINE SOLUTION
01AC C
Electro magnet
(ECB) over cur-
rent.
C
a. On standby mode, measure the resistance on ECB1. Please check the ECB extension
cable connection
at the LCB (pins 1 & 3 for ECB1, there should be between 10.13 ~ 10.27 ohms.
- If the ECB resistance is out of the range, replace the ECB.
- If the ECB resistance is within the range, replace the LCB.
b. Check the gap of ECB1. There should be a gap of .5mm between the ECB and the
flywheel.
01AF C
Electro magnet
(ECB) discon-
nected.
C
a. Check the connection of the ECB extension cable from the LCB to the ECB.
b. On the workout, check to see if LED10 on the LCB have a brief light.
- If LED10 do not have a brief light, replace the LCB.
- If LED10 do have a brief light, check the ECB extension cable connection at the LCB
(pins 1 & 3
for ECB1), there should be between 10.13 ~ 10.27 ohms.
- If the ECB resistance is out of the range, replace the ECB.
- If the ECB resistance is within the range, replace the LCB.
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