HE220A AND HE260A BY-PASS FLOW-THROUGH HUMIDIFIERS
CHECKING YOUR HUMIDIFIER OPERATION
After winter startup or servicing, use the following steps to check the humidifier
operation:
1. Turn on the humidifier power and water supply.
2. Turn the H8908 Humidity Controller to the highest setting, and set the thermostat
to 10°F (6°C) above the room temperature.
3. Observe that water is flowing out of the drain hose.
NOTE: The furnace blower must be on to activate the humidifier.
4. Reset the thermostat and H8908 Humidity Controller to a comfortable setting for
automatic operation.
TROUBLESHOOTING YOUR HUMIDIFIER
Problem What To Look For
Low
Furnace blower not
humidity
operating
Rapid air changes.
Drafts (cold air is
dry and is an added
load to the
humidifier).
High
Condensation on
humidity
walls.
Heavy
condensation on
windows.
69-1654EF
• Reset circuit breaker or check for blown fuse.
• Check that the furnace power is on.
• Check all external wiring connections.
• Check the humidity control setting.
• Call a professional heating contractor.
• Keep doors and windows closed.
• Close fireplace damper when not in use.
• Keep exhaust fan running time to a minimum.
• Seal around doors and windows.
• Turn off the humidistat and water until
condensation is completely evaporated.
• Turn down humidistat low enough to eliminate
condensation caused by moisture from bathing,
mopping, cooking, etc. If moisture persists, more
ventilation is needed.
6
What To Do