E16
SoftPro
Valve Configuration / Parameter Fault
Display shows E16 and the unit indicates an internal valve configuration error.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Incorrect valve type selected in programming, Firmware mismatch with valve hardware, Corrupted configuration data, Recently replaced valve head not matched to controller
How to Fix / Troubleshooting
Safety first: This is a control/programming issue. No plumbing needs to be opened.
- 1. Confirm valve model: Check the label on the SoftPro control valve head for the exact model. Compare this to the valve type selected in the controller's installer menu.
- 2. Correct programming: Enter the installer setup and select the proper valve type, tank size, and system configuration. Save settings and exit.
- 3. Factory reset: Perform a factory reset per the SoftPro manual, then re-enter all parameters carefully.
- 4. Check firmware compatibility: If the valve head or control board was recently replaced, ensure they are compatible revisions. Contact SoftPro support or your dealer if unsure.
- 5. Replace control board: If E16 persists with correct settings and compatible hardware, the control board may be corrupted and should be replaced.
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Repair Difficulty
Medium
3/5
Required Part
SoftPro control board
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