Softener does not power on at all; display is blank and unresponsive.

Safety first: Do not attempt to open the power adapter. Work with dry hands around electrical outlets.

Step-by-step:

• 1. Check outlet: Test the outlet with another device and reset any tripped GFCI or breaker.
• 2. Inspect adapter: Ensure the AquaHouse adapter is firmly plugged into both the outlet and the control head.
• 3. Try another outlet: Move the adapter to a different known-good outlet.
• 4. Replace adapter: If still no power, try a compatible AquaHouse replacement adapter.
• 5. Inspect control head: If a good adapter does not restore power, the DC jack or main control board is likely failed and should be replaced.