RO Compact Series Technical Manual
34
Solenoid Valve Maintenance
Each RO-compact unit has two solenoid valves which operate
in opposite orientations. The feed solenoid valve normally
closed and the process solenoid valve normally open.
Occasionally, debris may become trapped in the diaphragm of the valve, causing the valve to
not close completely. To perform maintenance on the valve, use the following procedure:
1
Shut o the water
Unplug the system to prevent it from
starting while you are working.
2
Unscrew the electrical connection to the
solenoid valve.
3
Unplug the
connector from
the body of the
valve
4
Unscrew the top
of the valve
5
Remove the top
portion of the
valve
Be careful not
to lose the pilot
spring, located in
the middle of the
valve.
6
Remove the
diaphragm
7
Clean the surface
Using a damp
cloth or paper
towel carefully
clean the surface.
8
Replace the diaphragm and pilot spring
9
Re-fasten the top of the solenoid valve
10
Reconnect the power cable
Fasten using the screw provided.
11
Important!
Clean or change
the plunger to
remove limescale
build up
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