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CHAPTER 8: TRoUblESHooTINg
8.8 ERRoR CodE TRoUblESHooTINg - 02C1
ERRoR CodE 02C1
1) SyMPToM:
a. 02C1 -Speed tracking error (the speed tracking is off by at least 10 rpms for a continuous 20 sec).
2) SolUTIoN:
a. Adjust the speed sensor position and clean the speed sensor of any debris (Figure A).
b. Check the ECB extension cable connection at the LCB (pins 1 & 3 for ECB1, pins 2 & 4 for ECB2), there should be between 12.8 ~ 14.2
ohms, check which ECB is outside the range and replace it (Figure B).
fIgURE A
fIgURE b
8.9 ERRoR CodE TRoUblESHooTINg - 02C2
CHAPTER 8: TRoUblESHooTINg
ERRoR CodE 02C2 (Control Zone 3 IR sensors error)
1) SyMPToM:
a. The control zone 3 IR sensors are no communication or disconnected over 3 seconds.
b. Once power on, the control zone 3 IR sensors are no power or hidden over 3 seconds.
c. After power on, the control zone 3 IR sensors are no power or hidden over 4 hours.
2) SolUTIoN:
a. Check if there's something in the control zone 3 IR sensors.
b. Check the connection of the control zone extension cable from the LCB to the control zone 3 IR sensors (Figure A & B).
c. Check if LED1 on the receiver board is flashing (Figure C).
- If yes, measure if the control zone extension cable (white wire- pin2) from the LCB to receiver board of control zone is good (Figure A
& B). Replace it if the cable is defective.
- If not, go to next step to verify.
d. Check if D12 on the LCB is light (Figure D).
- If not, replace the LCB.
- If yes, go to next step to verify.
e. Check LED1 status on the receiver board (control zone).
- If LED1 is light, replace the transmission board.
- If LED1 is off, replace the receiver board.
fIgURE A
fIgURE b
fIgURE C
fIgURE d
