Question about Aprilaire 700 Humidifier

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Aprilaire 700 ac running

Air conditioning running

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Posted on Jan 02, 2017

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SOURCE: Aprilaire 700 Humidifier not working. Can it be repaired?

turn the humidistat back up, aand make sure if is still wired up.

Posted on Jan 19, 2009

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SOURCE: Aprilaire 700 using too much water-------

There is a small oriface that is installed next to the solenoid valve. It sounds like this oriface is missing. It reduces the water flow through the humidifier when it is working properly. You should be able to disassemble the solenoid fittings to check and see if the oriface is in the water line. For a "temporary" fix regulate the water pressure down by closing down on the saddle valve.
Good luck
HVAC Teacher

Posted on Mar 08, 2009

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1 Answer

Aprilaire 700 water never shuts off


the float may be bad or sticking allowing water to run continusly even when unit is off.

Nov 06, 2013 | Aprilaire 700 Humidifier

2 Answers

Not working


HI, Troubleshooting an Aprilaire Humidifier

Aprilaire, a manufacturer of indoor air quality products including thermostats, air cleaners and dehumidifiers, also offers a line of whole house humidifiers. Installed in your existing heating and cooling system, humidity is produced by a supplied water source that flows over a water panel before being distributed throughout your air through the heating and cooling system. Issues you may need to troubleshoot with your Aprilaire humidifier include error messages and the unit producing too little or too much humidity.

Things You'll Need:

Replacement water panel


Turn down the control dial by one setting if condensation appears on your windows or walls.


Turn up the control dial by one setting if there is a lack of humidity, often indicated by dry skin or peeling wallpaper or paint.


Turn the control dial to "Test/Reset" if the humidifier does not run. Verify the heating and air conditioning unit blower is operating. If the heating and air conditioning unit is not operating or you are unable to resolve the issue contact a heating contractor.


Contact a heating contractor if you turn the control dial to "Off" and the humidifier continues to run.


Contact your Aprilaire dealer (see Resources) if you notice an error code on the display and the "Call Dealer for Service" light flashes.


Turn the control dial to "Off" and turn off the water supply if the yellow "Change Water Panel" light flashes. Lift the front panel off of the humidifier. Slide out the water panel. Insert a new water panel. Replace the front cover. Turn the control dial to "Test/Reset" until the "Humidifier On" light flashes. If you feel uncomfortable changing the water panel, contact a heating contractor.


Tips & Warnings

Purchase replacement water panels through your Aprilaire dealer or a heating contractor.



You can get parts from the link below:

arnoldservice.com/humidifier_parts.htm


Hope it helps.

Thanks for using fixya....

Nov 17, 2010 | Aprilaire 700 Humidifier

1 Answer

Solenoid on Aprilaire whole house humidifier


the solenoid allows water to flow to jet that then runs down the pad the solenoid is control by the stat

Feb 23, 2010 | Aprilaire 700 Humidifier

1 Answer

New Aprilaire 700 - loud hi pitched whistle


You may be having problem with air scaping from the base of the hum. it will probably may have to put silicone around the base of the hum. to stop the air scaping.

Feb 05, 2009 | Aprilaire 700 Humidifier

1 Answer

Aprilaire 700 Humidifier Doesn't work


check this website for a wiring diaghram Aprilaire 700 Repair Parts & Supplies
http://www.arnoldservice.com/Aprilaire_700_repair_parts_supplies.htm

Dec 07, 2008 | Aprilaire 700 Humidifier

1 Answer

Aprilaire 700 operating at wrong time


You want the humidifier to run in heat mode which is the r-w1 terminal on the stat.

Nov 17, 2008 | Aprilaire 700 Humidifier

1 Answer

Aprilaire 600 just installed and showing an error code


No, it is not an accurate statement.

These units have simple configurations They have a water supply similar to a ice making referigerator, an enclosure connected to your supply duct that houses a prop fan and media, a seperate humidistat and a drain for excess water. Your unit may also include fancy controls including an outside thermometer & humidistat to avoid over humidification that can cause problems during freezing weather. The humidistat looks a lot like a thermostat and is located in your living space or in the return duct. The prop fan in the box pulls air from the duct, through evaporation media and back to the duct. An electric solenoid valve releases water that pours over the media.

If the humidiy is below the humidistat seting and the AC/heater is running, the Aprilaire fan starts and the solenoid valve opens. I suspect the facier controls include the flashing warning light.

The warning light spells problem. Aprilaire's customer service should be able to provide guidance for the homeowner in the form of simple checks. I suspect your contractor is avoiding a warentee call and the trip it requires.

A word of caution. These humidifiers can be powered directly from your air conditioning unit control board from an auxiliary connection. If the control board isn't rated to carry the current required by the Aprilaire fan, valve and controls or the Aprilaire encounters and electrical problem, the board can be damaged. This can be avoided by using a relay. The AC board switches a low energy relay. 120 volt house power is connected to load side of the relay and runs the Aprilaire.

My board cooked at a location near this connection, but I can't be sure that the load from the humidifier caused it since four of our neighbors also lost their board. It failed the evening of a snow storm and required a costly emergency after hours service call. The next day a new board required a three hour drive. Fortunately a fan powered propane heater kept our pipes from freezing.

Aug 27, 2008 | Aprilaire 600 Humidifier

1 Answer

Leaking humidifier


Check for an obstructed drain line.

Feb 28, 2008 | Aprilaire 700 Humidifier

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