Why is the steam light not turning on in my Aprilaire Humidifier?
The steam light on your Aprilaire Humidifier might not be turning on because:* The unit is not receiving a call for humidity; check the humidistat wiring and setting, and ensure ADHC is not in TEST mode.* Check the wiring and settings of the high RH limit switch and airflow proving switch.
What to do if my Aprilaire Humidifier is leaking water?
If you notice water leaking from your Aprilaire Humidifier, start by inspecting the water supply connection at the fill valve inlet and tighten it if needed. Check the internal hose clamp connections and reposition/tighten them as necessary. Ensure the steam hose connection on top of the canister is secure and the clamp is tight. Also, inspect the internal hoses for any kinks or blockages, and make sure the drain hose has a constant downward slope without any obstructions.
Why Aprilaire Humidifier will not fill?
If your Aprilaire Humidifier is not filling, ensure the saddle valve is properly installed and open. Also, check the internal hoses for any kinks or blockages.
What to do if Aprilaire Humidifier is leaking water?
If your Aprilaire Humidifier is leaking water, here are some things to check:* Make sure the water supply connection at the fill valve inlet is tightened.* Check the internal hose clamp connections, repositioning and tightening the clamps as needed.* Ensure the steam hose connection on top of the canister is secure and the clamp is tight.* Inspect the internal hoses for kinks or blockages and eliminate them.* Verify that the drain hose has a constant downward slope and is not blocked.
What does it mean if the fill light is solid red on my Aprilaire 800?
A solid red fill light on your Aprilaire Humidifier indicates:* The fill valve has been filling for 40 minutes; make sure the high water pin wire is securely installed.* There is a low spot in the steam hose collecting water; support the steam hose along its length, ensuring a 2" per foot slope from the dispersion tube to the humidifier.* High static pressure in the duct is causing back pressure; ensure the dispersion tube is not discharging into a duct with static pressure greater than 2.0 in w. g.* Make sure dispersion tube tubelets are pointed up.
Why Aprilaire 800 Humidifier will not turn on or turn off?
Your Aprilaire Humidifier might not be turning on or off due to several reasons. Here are some things you can check:* Verify that the field-wired terminal connections L1, N/L2, and ground are properly wired and have the correct voltage.* Check that the HUMIDISTAT and FAN PACK terminal connections are tight and correctly wired.* Ensure the HUMIDISTAT terminals are connected to an on/off device.* Inspect wiring connections and settings on accessories like the high limit switch and airflow proving switch.* Examine electrode and high water probe connections on the top of the canister.* Confirm the ribbon cable from the membrane switch is securely plugged into the control circuit board.* Ensure the black/white wire is attached to the terminal that matches the input voltage.* Che...
Why is water dripping from the Fan Pack of my Aprilaire 800 Humidifier?
If you see water dripping from the Fan Pack of your Aprilaire Humidifier, check all tubing connections to ensure they are secure. Clean the steam dispersion manifold outlet if the steam outlets are blocked. If there's foaming in the canister or steam hose, rinse the components with clean water.
Why is the fan not operating on my Aprilaire Humidifier?
If the fan on your Aprilaire Humidifier's Fan Pack isn't working, check the wiring. Make sure the steam humidifier is powered on. Adjust the humidistat setting and check its location. Confirm there's 24 VAC output from the steam humidifier FAN PACK terminals during a call for humidity. If none of these steps work, the motor may have failed and needs replacement.
Why is there water in duct coming from Aprilaire 800 Humidifier?
If you notice water in the duct, it may be because the dispersion tube is installed incorrectly. Ensure the dispersion tube is installed with the tubelets facing straight up. Additionally, rinse the canister, fill hose, and fill cup with clean water to remove any impurities causing foaming. Determine the necessary absorption distance.
Why is water constantly running down drain of Aprilaire Humidifier?
If water is constantly running down the drain of your Aprilaire Humidifier, there might be debris in the drain valve preventing it from closing. Remove the canister and clean any debris from the drain valve. Also, check the O-ring in the drain valve to ensure it's properly seated and not damaged; replace it if necessary. If water is flowing from the fill cup overflow port, inspect the internal hoses for kinks or blockages. Ensure the dispersion tube tubelets are pointed up and that the dispersion tube isn't discharging into a duct with static pressure greater than 2.0 in. wg.
General| Type | Steam Humidifier |
|---|---|
| Installation | Professional installation recommended |
| Warranty | 5-Year Limited Warranty |
| Coverage Area | Up to 6, 200 sq. ft. |
| Control | Automatic or manual control |
| Capacity | 11.5, 16.0, 23.3, or 34.6 gallons per day (depending on model) |
| Voltage | 120V or 240V (depending on model) |
Read manual before service/maintenance. Failure can cause hazardous situations, property damage, personal injury, or death.
System has hot surfaces and water up to 212°F (100°C). Contact can cause severe personal injury. Follow manual procedures.
Follow shutdown procedures before service. Loss of power during maintenance can cause severe injury or death from electrical shock.
Explains how the Aprilaire Steam Humidifier generates steam using electrodes and water in a canister to deliver humidity.
List of recommended inspection items when servicing the humidifier, including canister, valves, and wires.
Step-by-step procedure for safely shutting down the humidifier before performing service or maintenance.
Procedure for disconnecting, cleaning, and reconnecting the fill valve strainer and water supply line.
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