My Humidifier Drips & Leaks

Water Pan

• Check the water pan, drip pan or reservoir, depending on your humidifier model. This is the holding tank, and the most likely source of water problems. Be sure that it is not too full, and is sound, with no cracks or breaks. If you find a problem, correct it appropriately. A short-term fix is to place a pan or mat beneath the unit to catch water until you can get the pan replaced or repaired.

Drain Line

• Sometimes the drain line that allows water to drain out of the humidifier becomes clogged or gets pushed out of place. Make sure it attaches correctly and water is able to flow through it. Air lock occurs if the line is not sloped properly, or has dips in it so that water becomes trapped. Use a high-pressure water flush to clear air lock from the line. Inspect the entire line for wear and replace as needed, usually annually.

Valves and Pressure

• The solenoid valve needs to be adjusted to allow water to flow in the appropriate direction. It is typically marked with arrows. If it is adjusted for water to flow in instead of out, your reservoir over-fills and overflows. Water pressure that is 125 psi or higher may also cause leaking and dripping. Reduce water pressure until the problem is fixed.

Maintenance

• Maintain your humidifier correctly to avoid many of the causes of leaking and dripping. Regular visual checks catch problems early. Periodically check the solenoid valve by shutting off the humidistat and turning it back on while listening for a clicking noise. Replace or clean filters regularly, especially if you have a well. Clean away any mineral deposits by soaking removable parts in a 1:1 vinegar to water ratio for 15 to 20 minutes. Be sure to re-assemble correctly and tighten all fittings to prevent additional leaking.