Love my Aprilaire Steam Humidifier but can you help me with the banging, please!

Consumer question:

I had the Aprrilaire Model 800 Steam Humidifier unit installed a little over a year ago. I am very happy with the unit except for the water valve. When it closes it makes a water hammer sound that can be heard 2 floors up from the unit. My next door neighbor complains about the same banging noise. Thank you!

Aprilaires’ response:

Thank you for contacting us regarding your model 800 humidifier. If you are experiencing water hammer with the solenoid, you can most times remedy this with the installation of a shock arrestor. The shock arrestor gives the pressure behind the water a place to go without banging the water against the valve.

We have a shock arrestor available, which is our part number 4280. Please contact your installing contractor regarding having a shock arrestor installed.

If you have any further questions regarding this or any of our products, please feel free to contact our customer service department at your earliest convenience.

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