Kenmore CENTRAL HUMIDIFIER 303.9380612 - Manual (Page 15)

TROUBLESHOOTING
Frequently, what seems to be a major problem can be
solved very easily. Listed below are the common con­
cerns with any humidifier.
Check the simple things first. Remove the front panel
and see if there is a crusty, white lime buildup on the
media pad. The lime buildup won’t hurt the humidifi­
er, but will reduce its output. Low output might just
mean your humidifier needs cleaning. While you’re
checking for lime buildup, look to see if the media
wheel is turning. If not, check the power supply.
PROBLEM CHECK CORRECTION
Too Little
Humidity
1. if humidifier needs cleaning 1. Clean humidifier and clean or replace media
pad
2. If media wheel is rotating 2. a. Clean or replace media pad
b. Inspect main fuse or circuit breaker
c. Check to see if media motor gear is rotating
and engaged with media wheel gear
d. Check if humidistat setting is too low; turn
knob clockwise to increase humidity
3. Humidistat setting 3. Set for proper outdoor temperature - lowest
expected temperature for a 24-hour period
4. If not enough water is going to unit 4. Turn on saddle valve and check for possible
obstruction in water line. Is water supply
connected?
5. If there is excessive air loss in house 5. Close fireplace damper, seal around doors
and windows
6. If water level is correct 6. Adjust float
Too Much
Humidity
1. Humidistat setting 1. Turn knob counter-clockwise to decrease
humidity
2. For other humidification sources 2. May be a temporary condition caused by
moisture from laundering, bathing, cooking, etc.
Humidifier 1. Is the humidifier level? 1. Level unit
Overflows
2. Is the float valve button worn? 2. Remove the float valve button and turn it over
or, replace if both surfaces are worn, as shown
in Fig. 27
Humidifier
Making Noise 1. Mounting or plenum
2. Water pressure
1. Tighten all fasteners
2. A slight sound is normal as water enters
humidifier
3. Media Wheel 3. Check clearance of media wheel in reservoir
4. Blower Motor 4. Loosen mounting nuts on rubber grommets so
they are just flush with mounting studs
Humidifier
Motor Comes This is a normal condition
1. If heating season is over 1. Turn knob on humidistat to minimum setting
On When
Furnace Isn’t
Running
2. If heating season is just starting 2. This is a normal condition since humidistat is
controlling humidifier
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