Crystal Quest No power to control valve

Softener will not start at all; display is blank and unit appears dead.

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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

Unplugged or failed Crystal Quest power supply, Tripped GFCI or breaker, Faulty power jack or internal fuse, Defective main control board

How to Fix / Troubleshooting

Safety first: Use caution around electrical outlets. Do not work on live circuits.

  • Check outlet: Verify the outlet has power by plugging in another device. Reset any tripped GFCI or breaker.
  • Inspect adapter: Confirm the Crystal Quest AC adapter is firmly plugged in and not warm, swollen, or damaged. Replace with an OEM adapter if suspect.
  • Check power jack: Wiggle the power plug at the valve. If the display flickers, the jack or board is loose or damaged and the Crystal Quest main control board may need replacement.
  • Board replacement: If a known-good adapter and outlet do not power the unit, replace the main control board following Crystal Quest service procedures.
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Repair Difficulty

Medium 3/5

Required Part

Crystal Quest power supply
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