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Christian ArmstrongOct 25, 2025
What to do if Apriaire 800 Humidifier won't turn on or off?
- CChristopher WilliamsOct 25, 2025
If your Apriaire Humidifier isn't turning on or off, there are several things you can check: * First, verify that the L1, N/L2, and ground connections are properly wired and that the appropriate voltage is present. * Also, check that the HUMIDISTAT and FAN PACK terminal connections are tight and properly wired. * Ensure the HUMIDISTAT terminals are connected to an on/off device, as connecting 24 volts to these terminals can damage the control circuit board. * Examine the wiring connections and settings on accessory items like the high limit switch and airflow proving switch. * Check the electrode and high water probe connections on top of the canister. * Make sure the blue/white wire jumpers (2) connecting the Control PCB and Current Sensing PCB are secure and properly orient...
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