Routine Maintenance
The humidifier pad should be replaced at least once
per year. This is critical for optimal performance of
the unit. This can be done at the beginning or the end
of the dry season. The humidifier design makes this
annual replacement quick and easy, providing one-
step access to the pad.
1. Pad can be replaced from the side by gripping the
black handle and pulling out, or from the front by
removing the humidifier's top cover and rocking the
pad forward and out
Humidifier pad might remove from other side of
humidifier, depending on installation.
2. Remove tray on top of the pad, and wipe free any
sediment present within the tray.
3. Replace the old pad with the new, making sure pad
is oriented correctly (see pad box). Wipe free any
sediment present inside the pad frame.
4. Reseat the tray on top of the pad with the arrows
inside the tray pointing into the duct. Then reinsert
the frame into the humidifier.
Troubleshooting
Problem
What To Look For
Low humidity
Furnace blower not
operating
Rapid air changes or
drafts
High humidity
Condensation on walls
Heavy condensation on
windows
Humidifier 33-00617EFS—01
What To Do
1. Reset circuit breaker or check for blown fuse.
2. Check that the furnace power is on.
3. Check all external wiring connections.
4. Check the humidity control setting.
1. Keep doors and windows closed.
2. Close fireplace damper when not in use.
3. Keep exhaust fan running time to a minimum.
4. Seal around doors and windows.
1. Turn off humidity control and water until condensation is completely
evaporated.
1. Turn humidity control down low enough to eliminate condensation
caused by moisture. If moisture persists, more ventilation is needed.
1
25%
2
MCR29885
21