5900S Neutralizer Operation & Maintenance Manual
Page 24
www.cleanwaterstore.com
Rev 110117
Troubleshooting the 5900-BT Neutralizer Filter
Backwash Flow Rate
One problem that may occur is if you do not have enough backwash flow rate to properly clean
the Neutralizer filter. You can verify the backwash flow rate by running the drain line into a
bucket and timing it when the 5900‐BT is in Cycle 1 or backwash. A 1.0 or 1.5 cubic foot system
should have 5 gallons per minute and a 2.5 cubic foot system should have 7 gallons per minute
of backwash.
In some cases, the 5900‐BT may not be programmed correctly. See this manual for instructions
on how to access the master programming.
Error Codes
There are five (5) error codes that could indicate a possible problem with the control valve:
Error 2
‐ Homing slot expected. Valve will start looking for home. (Normal operation continues)
Error 3
‐ Encoder is not sending a signal (Check that cable is attached)
Error 4
‐ Unable to find homing slot (Valve requires service to continue)
Error 5
‐ Motor overload (stalled position or shorted motor valve requires service to continue)
pH is Too High
If the pH after your neutralizer is greater than 8.5, your pH kit may turn the color of the
reagent, a purple color. This is nothing to be alarmed about.
In some cases, too much Corosex added to the Calcite‐Corosex blend can cause this problem; it
almost never happens with Calcite only systems.
If this happens, set the backwash cycle frequency to every night for a couple of weeks, which
will cause the media to be washed more thoroughly and use up the excess Corosex.
Alternatively, you can manually backwash it several times on a given day, etc. Secondly, you
can open the bypass valves slightly, and allow some untreated water to lower the pH by
blending in some of the lower pH water.
When you go to add more media in 6 to 12 months, just add less Corosex.
