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AprilAire + One

In Home Replacement

Per the terms and conditions of this program, the submission period for this program closed as of 7/1/23. Terms and conditions.

IMPORTANT SAFETY RECALL ALERT: Research Products Corporation, manufacturer of the AprilAire Steam Humidifier, has determined that a specific type of electrode wire with a “D” shaped connector may loosen causing arcing and/or overheating at the interface of the connector and canister, posing a fire hazard. The affected AprilAire Steam Humidifiers were produced from June 2010 – January 2015. Research Products Corporation voluntarily notified and is working with the U.S. Consumer Products Safety Commission and Health Canada on this issue. No other AprilAire products are affected.

To learn about the recall, please go to RPCRecall.com/SteamHumidifier or call 1.888.742.2401 (M-F 8 AM – 5 PM EST) to speak to a customer service agent.

"D" and "O" Connectors

Inventory Replacement Request

AprilAire will replace unused “D” shape connector electrode wire inventory with “O” shape connector wire inventory AprilAire part #4978 at no cost to you.

Replacement requests must include a picture of the “D” shape connector wire inventory with the wire(s) clipped (cut).

Allow 2 weeks for review and processing.



Replacement Request Mockup on Computer

Maintenance Instructions for the Model 800


Terms and Conditions. This incentive offer applies only to the replacement of a pair of “D” shaped electrode wires with a pair of “O” shaped electrode wires for the AprilAire 800 series Steam Humidifier.
For questions, please contact your AprilAire Sales Representative or Customer Support or call (800) 334-6011 Monday through Friday, 7:00 a.m.-5:00 p.m. Central Standard Time.