20
supply (3 wires) from printed circuit board.
14. Reconnect power supply to new printed circuit board
and install the new printed circuit board. Refer to elec-
trical diagrams.
15. Reconnect the resistivity cell lead and printed circuit
board relay plug.
16. Reconnect the membrane switch lead.
17. Reinstall the front cover.
18. Retape the Luer fitting with new Teflon tape and rein-
stall fitting.
19. Reinstall the EASYpure LF’s cover.
20. Reconnect the power cord and the pump interlock
plug to the unit, and reconnect the unit to the power
supply. Connect the incoming water line at quick dis-
connect.
M
AINTENANCE AND
S
ERVICING
Figure 7 Printed Circuit Board
