Cycle 4
• When the system advances to
Cycle 4
(Brine Draw), it is
important to listen for a significant sound difference as the
drain water is diverted through the injector. The flow at
the drain should reduce to approximately 30% of the backwash
rate.
• If the system does not draw brine, check the flow of water at the
drain. If the flow is fast like backwash, the water is bypassing the
injector, indicating that the piston seals may be the problem.
Remove, inspect, and replace the seals if necessary.
• Verify that the piston is in the right location (number 4) and
that the brine refill shut-off assembly is depressed. If the piston
is properly aligned and the refill shut-off assembly is not
depressed, the brine cam is out of synchronization with the
drive cam. Remove the drive cam and realign it with the brine
cam.
• If the flow of water to the drain is very slow (less than 20% of the
backwash rate), the brine injector or injector screen is
plugged or partially plugged; clean or replace as necessary.
• If the vacuum tested poor (below 10 inches), low water pressure,
an undersized, kinked, or an obstructed drain line may be the
cause. A partially plugged injector or bad seal can also cause
poor vacuum. Replace, clean, or repair as necessary.
Cycle 5
• A malfunction rarely occurs in
Cycle 5
(Fast Rinse). However,
if the system is allowed to draw brine, it is important to ensure
that the salt is thoroughly rinsed. Allow the system to complete
the entire rinse cycle and return to Service automatically.
• If the system does not count gallons, verify that the sensor cable
is attached to the computer board in the proper direction. The
connectors are keyed and do not fit properly if reversed.
• Verify that the other end of the sensor cable is firmly pressed
into the flow wheel housing.
• If the system is still not counting gallons, disassemble the rotor
assembly and check for any obstructions in the housing; remove
any visible obstructions.
For additional assistance with troubleshooting the “8 Steps to
Successful Service”, please contact RainSoft Technical Support at 1-
800-860-7638.
32
Summary of Contents for EC5 Series
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