Thermo Scientific 1403 Series Operating Manual page 61

Message
Pressure Sensor Er1
Pressure Sensor Er2
Pressure Sensor Er3
Low Memb Pressure
Check UV interlock (Reservoir UV)
Thermo Scientific
Possible Causes
Pressure sensor not connected to
board, or improperly connected.
Pressure sensor not functioning.
Check calibration tag
Pressure sensor not connected to
board, or improperly connected.
Pressure sensor not functioning.
Possible leak, prefilter installed
incorrectly or faulty prefilter.
Prefilter and membrane pressure
sensors not connected to control
board or improperly connected.
Check calibration tag.
Pressure sensor not connected to
board or improperly connected.
Pressure sensor not functioning.
Possible leak, or MPS or carbon fil-
ter installed incorrectly or faulty.
Check calibration tag.
MPS (D502114) or carbon cartridge
(D502115) is plugged.
Membrane failure or incorrect
installation.
Membrane pressure transducer out
of calibration.
RO pump failure.
Reject solenoid out of calibration or
stuck open.
Reservoir UV cover not in place.
Maintenance and Servicing
System Alarms and Errors
Action
Check connection.
Replace pressure sensor(s)
(TD1403X1) and recalibrate.
Ensure that reading on tag agrees
with reading in software.
Check connection.
Replace pressure sensor(s)
(TD1403X1) and recalibrate.
Check for water spillage. If none,
check installation of prefilter or
replace prefilter (D502113) if neces-
sary.
Check connections.
Ensure that reading on tag agrees
with reading in software.
Check connection.
Replace pressure sensor(s)
(TD1403X1) and recalibrate.
Check for water spillage. If none,
check installation of MPS
(D502114) and carbon filter
(D502115).
Ensure that reading on tag agrees
with reading in software.
Move cartridge to first position and
check pressure. Replace cartridge
and reset timer.
Check membrane connections;
replace membrane(s) (FL1265X1) if
necessary.
Recalibrate membrane pressure
transducer.
Replace RO pump (PU1190X1).
Perform manual flush. If error per-
sists, replace solenoid (RY1265X1).
Recheck UV cover position.
TII Water System 5-11