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Problem (cont.)
Display reads "Er6"
(Reservoir float error)
Display reads "Er7".
(Reservoir fill time error)
"Low RO Purity" LED is ON - Red
(% rejection is below set point)
"Replace RO Prefilter" LED is ON - Red
(RO Carbon Prefilter Timer)
See wiring diagram
1
Possible Causes (cont.)
One or more of the float connections
to the PC boards are unplugged.
One or more of the floats are sticking
in position.
RO membrane rinse-up.
No inlet water supply.
Carbon prefilter (D50246) is clogged
(visual check and/or pressure
decrease from installation)
Accessory AY1332X2 external system
sediment/antiscalant filter (FLX35)
is clogged.
RO probe connections to PC board
are unplugged.
RO membrane is fouled.
RO probes are fouled or out of
tolerance.
Daughter board (PC1332X1
is out of tolerance.
Six month service life of the Carbon
Prefilter has expired.
Action (cont.)
High Float -- J8 on daughter board
(PC1332X1 PC5
Medium Float -- J9 on daughter
board (PC1332X1, PC5
Low Float -- Position 3-4 of
WH1305X1 (WH3
Call Technical Service.
Correct operation per Membrane
Rinse-Up section. Continue
following rinse-up procedure.
Check water inlet connection to
R
EASYpure
water is turned on.
Replace carbon prefilter (D50246)
and reset prefilter timer.
Replace external
sediment/antiscalant filter.
Check ribbon cable connection
between probe interface board
(ME1332X1, PC6
board (PC1332X1, PC5
Replace RO membrane
(FL1332X2).
Call Technical Service.
)
Call Technical Service.
1
Replace Carbon Prefilter (D50246)
and reset Prefilter Timer.
T
ROUBLESHOOTING
)
1
)
1
)
1
D
unit. Ensure tap
O
I
) and daughter
1
)
1
45
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