Sentec SDM - Page 73

4 Troubleshooting
SenTec Digital Monitoring System
67
Problem
Possible Cause(s)
Recommended action(s)
SMBM
(Motherboard)
defective
Replace SMBM according to the Repair
Manual for the SDMS .
To be performed by SenTec authorized
service technicians only.
P0416
No alarm on
speaker,
nurse call
Auditory alarm is
muted
Auditory alarm signals can be muted for 1
minute, 2 minutes or permanently with the
Alarm Mute Button.
Push the Alarm Mute Button.
Refer to P0411.
SDM defective
Contact qualified service personnel.
SDM defective
Contact SenTec authorized service personnel.
SMBC (Controller
Board) defective
Replace SMBC according to the Repair Manual
for the SDMS .
To be performed by SenTec authorized
service technicians only.
SMBM
(Motherboard)
defective
Replace SMBM according to the Repair
Manual for the SDMS .
To be performed by SenTec authorized
service technicians only.
P0417
Safety test
does not
comply
SDM defective
Contact SenTec authorized service personnel.
Protective Earth
Resistance is more
than 0.2 Ω
Control the Protective Earth wiring between
the AC Power Connector, the Equipotential
Terminal and the Gas bottle.
To be performed by SenTec authorized
service technicians only.
Protective Earth
wiring defective
If problem persists, replace Protective Earth
according to the Repair Manual for the SDMS .
To be performed by SenTec authorized
service technicians only.
Leakage current
too high
Replace SMBM according to the Repair
Manual for the SDMS .
To be performed by SenTec authorized
service technicians only.