It is critical to verify yourhumidifierworks correctly and is properly maintained.
Newer tightly constructed homes have much less air infiltration than older homes.
Warning
Repairs and maintenance on gas appliances (including furnaces) are best left to professionals.
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Since the water supply is constantly flowing, there is a lower likelihood of mold problems.
Steam humidifierscontain self-generating steam heaters and are the most expensive, lowest maintenance, and most efficient design.
Some homes may require special filtration of the water to be suitable for a central steam humidifier.
Before You Begin
Turn off power to the furnace.
Next, turn off the water supply tap valve to the humidifier.
The unit may have humidity controlled with ahumidistat.
Remove the humidifier cover and set it aside.
Remove the Drum
Remove the humidifier drum and check the pad.
If it is hardened from mineral deposits, make a run at clean it using the approach described below.
If that does not work, then the evaporator pad must be replaced.
Soak the foam pad until the deposits dissolve.
Rinse the pad with clean water and repeat if necessary.
If the pad is ripped or does not come fully clean, replace the foam pad.
you’re able to raise or lower the water level by adjusting the float arm.
There is usually an adjusting screw that attaches the float to the float lever arm.
Test the Operation
Turn the power back on to the furnace.
These units control humidity with a humidistat.
The water inlet feed tube will separate from the distribution manifold.
If it is metal, you may have to clean mineral deposits away with a chisel or flat-blade screwdriver.
Check the evaporator screen pad.
Soak the pad until the deposits dissolve.
Rinse the pad with clean water and repeat if necessary.
If that is the case, replace the evaporator pad with a new drip pad.
If there is no voltage, the humidistat is bad.
This is probably a job for a service technician.
Turn the humidistat up to 80 percent.
You should hear a click sound coming from the solenoid valve.
If you hear the clicking sound, the humidistat is working correctly.
The steam is picked up by the system blower then pushed throughout the home vents.
Drain the system of water, following the instructions of your particular humidifier model.
Remove the overflow pan from the unit, loosening the mounting screw if necessary.
Clean the scale from the metal water discharge and water supply tubes.
Reassemble the tank, taking care to install any O-rings correctly.
If the service interval calls for it, replace the water filter, as per the manufacturer’s instructions.
When finished, turn the power back on and reset the humidistat to the desired level.
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