E13
Crystal Quest
Regeneration inhibit / lockout fault
Display shows E13 and unit will not enter regeneration when commanded; REGEN button has no effect.
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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
Regeneration lockout enabled in programming, Incorrect time-of-day or calendar settings, Failed regen relay or triac on Crystal Quest control board, Defective REGEN button on keypad
How to Fix / Troubleshooting
Safety first: Unplug the unit before removing the front panel.
- Check programming: Enter the installer menu and verify that regeneration is not disabled or restricted to certain days. Correct any lockout settings.
- Verify clock: Ensure the time-of-day and day-of-week are set correctly so scheduled regenerations are allowed.
- Test manual regen: With the panel reinstalled, press and hold the REGEN button for the required duration (often 3–5 seconds). If the display acknowledges but the valve does not move, the regen output on the board may be faulty.
- Inspect keypad: If the button press is not detected at all, replace the Crystal Quest keypad/display module. If the valve motor never energizes despite correct commands, replace the Crystal Quest main control board.
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Repair Difficulty
Medium
3/5
Required Part
Crystal Quest main control board
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