North Star
No Power to Control
Softener will not power on; display is blank
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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
Faulty power supply transformer, Loose power cord, Tripped GFCI or breaker, Failed control board
How to Fix / Troubleshooting
Safety: Do not work on live electrical circuits. Unplug before inspecting internal components.
- 1. Check outlet: Test the wall outlet with another device to confirm power. Reset any tripped GFCI or breaker.
- 2. Inspect power cord and transformer: Ensure the transformer is firmly plugged into the outlet and the low-voltage plug is fully seated in the control.
- 3. Test transformer output: Using a multimeter, verify the transformer outputs the correct low voltage specified on its label. Replace the power supply transformer if no output.
- 4. Replace control board: If the transformer is good but the display remains blank, replace the electronic control board.
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Repair Difficulty
Medium
3/5
Required Part
Power Supply Transformer
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