Aprilaire humidifier water panel scales up very quickly (within weeks)

Safety first: Turn off water and power before servicing the humidifier.

• Check water hardness: If the home has very hard water, consider installing a water softener or feeding the humidifier from a treated water line.
• Verify orifice: Confirm the correct Aprilaire orifice is installed for your model and water pressure. A larger orifice than specified can cause excessive flow and scaling.
• Inspect drainage: Ensure the drain line is clear so mineral-laden water can flush away instead of stagnating.
• Increase service frequency: In hard water areas, plan to replace the Aprilaire water panel more frequently (2–3 times per heating season) to maintain performance.