50
T
ROUBLESHOOTING
Problem (cont.)
Possible Causes (cont.)
Action (cont.)
DI Temp Error
Resistivity cell not connected to board.
Check resistivity cell lead
connection on board.
Resistivity cell temperature sensor
Replace resistivity cell
out of tolerance.
(E1403X1A).
Reservoir water temperature outside
Check the temperature of the
of allowable range.
storage reservoir water.
Control board out of tolerance.
Replace control board
(PC1403X3).
Low DI Purity
Cartridge pack near exhaustion.
Install a new cartridge pack
(D502137) and reset timer.
Cartridge pack not in place
Check that cartridge pack is
(sanitization block installed?).
installed.
DI cell out of tolerance.
Replace resistivity cell
(E1403X1A).
DI meter on control board out of
Replace control board
tolerance.
(PC1403X3).
DI Over-range
Air in system.
Allow system to recirculate to
purge air, or look for possible
suction leak.
Resistivity cell not connected to
Check resistivity cell lead
control board.
connections on control board.
Incorrect NIST calibration offset.
Perform NIST calibration. This will
require an E1403X4 calibration
module. If you do not have a
calibration module, perform
calibration without module and
answer "yes" to prompt to clear
any incorrect offset value.
Resistivity cell out of tolerance.
Replace resistivity cell
(E1403X1A).
RO Temp Error
RTD not connected to board.
Check RTD connection.
RTD out of tolerance.
Replace RTD (RSX432).
Feedwater temperature outside of
Check feedwater temperature.
allowable range.
Control board out of tolerance.
Replace control board
(PC1403X3).
