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2-Pack Electrode Wire Replacement for AprilAire 4978

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Solve "No Steam" and Unstable Humidity Issues If your AprilAire humidifier is experiencing problems such as no steam output, unstable humidity, or decreased performance, replacing the electrode wire is often the solution. Restore stable and reliable humidity in your home.
The 4978 is an original-grade replacement designed specifically for AprilAire whole-house steam humidifiers and compatible with models 800, 800LC, 801, 865, and 866. It has the same size and performance as the original part, but at a significantly lower price.
Easy Installation Plug and Play No special tools required. Simply turn off the power, unplug the old power cord, and insert the new 4978 electrode wire. For safety, always disconnect the power before installation.

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For optimal performance, it is recommended to replace the electrode wire every 36 months the manufacturer recommends replacing it every 3 years to prevent loose connections and mineral buildup. This double package includes one electrode wire for immediate replacement and another as a spare.
The product includes: two high-quality 4978 model steam humidifier electrode wires. One is for immediate replacement, and the other is a spare, ensuring stable humidity in your home over the long term.