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Cleveland HVAC Blog

A Leaky Humidifier Is A Sign That Professional Service Is Required

Posted by Paul Wadsworth on Mon, Mar 11, 2013 @ 02:24 PM

If you have problems with dry air in your home, a whole-house humidifier will help alleviate the problem by increasing the relative humidity — the amount of moisture in your indoor air. Since humidifiers contain water, there is always a chance that the unit might develop a leak. If you have a leaky humidifier, contact your local trusted HVAC service provider for repair.

Whole-house humidifiers are usually attached to your existing forced-air furnace. The airflow from the heating system is directed into the humidifier, where moisture is added in the form of mist or water vapor. The moistened air then travels through the heating system as normal, warming your home and increasing indoor humidity.

A leaky humidifier may require repair or maintenance procedures such as:

  • whole house humidifierCleaning, adjusting or replacing the drain line: Over time, sediments, minerals and other material can accumulate in humidifier drain lines. They also need a gradual or continuous slope so that water will drain properly. Your HVAC technician can check the drain line to make sure it's not clogged and that it has a smooth slope with no kinks, twists or highs or lows in the pipe's direction or travel. *NOTE: There is usually a u-shaped water trap somewhere in the line before it goes to the drain to keep objectionable odors from being transferred from the drain to the heating system and distributed throughout your home.   
  • Reducing water pressure: If the pressure of the water coming into the humidifier is too high, it can cause the unit to leak. The tech can reduce and adjust the water pressure until the leak is stopped.
  • Cleaning the drain opening: The drain opening beneath the water panel, sponge, water pad or other water-containing media can become clogged with buildup. Change the media and clear out the drain opening so water can flow freely down the drain line. Generally this is a good idea annually during the regular maintenance inspection. 
  • Checking the solenoid: The solenoid controls operation of the water inlet valve. Your technician can check or replace the solenoid to make sure both it and the valve are free of debris and working properly and that water is flowing in the correct direction.

Serving customers in Greater Cleveland and northern Ohio with expert HVAC services is the mission of P. K. Wadsworth Heating & Cooling. Contact us today for more information on humidifier maintenance and what to do if you have a leaky humidifier in your home.

fix cleveland winter home air with a whole house humidifier


Paul WadsworthPaul Wadsworth is the President and Owner of P.K. Wadsworth Heating and Cooling. For 37 years, Paul has been providing heating and cooling services to the Greater Cleveland area. P.K. Wadsworth has been a trusted Cleveland HVAC service company for 75 years. The company understand the area's construction and local heating and air conditioning needs. Paul has an MBA from the University of Michigan and a B.S., Industrial Engineering from Purdue University. He's been President of the Cleveland Air Conditioning Contractors of America and a founding member of the local chapter. Paul was born and raised in Cleveland and has been active in the local community. He resides in Cleveland, Ohio with his wife and two sons.

The opinions and statements contained in this article are for general informational purposes only and are not instructions. Only trained, licensed and experienced personnel should attempt installation/repair. The author assumes no liability for the opinions/statements made in this article. Any individual attempting a repair or installation based on this article does so at their own risk of loss.

Topics: whole house humidifier, indoor air quality, hvac technician, humidifier

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