T
ROUBLESHOOTING
Problem (cont.)
Possible Causes (cont.)
Action (cont.)
Pressure Sensor Er2
Pressure sensor not connected to
Check connection.
board or improperly connected.
Pressure sensor not functioning.
Replace pressure sensor(s)
(TDX8) and recalibrate.
Possible leak, prefilter installed
Check for water spillage. If none,
incorrectly, or faulty prefilter.
check installation of prefilter or
replace prefilter (D502113) if
necessary.
Prefilter and membrane pressure
Check connections.
sensors not connected to control
board or improperly connected.
Pressure Sensor Er3
Pressure sensor not connected to
Check connection.
board or improperly connected.
Pressure sensor not functioning.
Replace pressure sensor(s)
(TDX8) and recalibrate.
Possible leak, or MPS or carbon
Check for water spillage. If none,
filter installed incorrectly or faulty.
check installation of MPS
(D502114) and carbon filter
(D502115), or replace if necessary.
Low Memb Pressure
Carbon cartridge (D502115) is
Replace carbon cartridge
plugged.
(D502115) and reset timer.
Membrane failure or incorrect
Check membrane connections,
installation.
replace membrane(s) (FL1265X1)
if necessary.
Membrane pressure transducer out
Recalibrate membrane pressure
of calibration.
transducer.
RO pump failure.
Replace RO pump (PU1190X1).
Reject solenoid out of calibration or
Perform manual flush. If error
stuck open.
persists, replace solenoid
(RY1265X1).
Check UV interlock
Reservoir UV cover not in place.
Recheck positioning of UV cover.
UV interlock actuator or sensor out
Check that the actuator is attached
of position.
to the cover and the sensor is
mounted to the reservoir.
UV interlock cable not connected.
Check cable connections at the
reservoir circuit board.
UV interlock sensor not functioning.
Replace interlock sensor
(SW1406X1 for 30L, or SW1407X1
for 60L).
52
