Aquasana Overheating Control Board or Power Adapter

Aquasana softener emits a burning smell or the control head feels unusually hot

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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

Shorted component on control board, Incorrect power adapter used, Blocked ventilation around control head, Internal wiring fault

How to Fix / Troubleshooting

Safety first: Immediately unplug the power adapter. Do not touch hot components or continue using the system until inspected.

Steps to address overheating:

  • 1. Verify adapter: Confirm that the Aquasana-branded adapter with correct voltage and polarity is being used.
  • 2. Inspect surroundings: Ensure the control head is not enclosed in a tight cabinet without ventilation.
  • 3. Visual inspection: After cooling, remove the control head cover and look for burnt components or melted plastic.
  • 4. Replace components: Replace a hot or buzzing power adapter. If the board shows signs of burning, replace the electronic control board / control head.
  • 5. Do not reuse damaged parts: Operating with overheated components is a fire risk.
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Repair Difficulty

Hard 4/5

Required Part

Electronic Control Board
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