09/03
2-35
DC 3535/2240/1632, WC M24
3-350, 3-351
Status Indicator RAPs
Initial issue
3-350 IOT-ESS Communication Failure 10
Controller received check code error (wrong sequence number in received message packet).
Procedure
Switch the power off then on. The problem continues.
YN
Return to Service Call Procedures.
Reinstall the software. If the problem continues, check the MCU PWB connectors (P/J Loca-
tions, Figure 15). DC 3535 only: Replace the VSEL PWB (PL 13.1). If the problem persists,
replace the MCU PWB (PL 13.1).
3-351 IOT-ESS Communication Failure 11
Controller received check code error (wrong packet number in received message packet).
Procedure
Switch the power off then on. The problem continues.
YN
Return to Service Call Procedures.
Reinstall the software. If the problem continues, check the MCU PWB connectors (P/J Loca-
tions, Figure 15). DC 3535 only: Replace the VSEL PWB (PL 13.1). If the check is OK, replace
the MCU PWB (PL 13.1).
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