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SECTION V TROUBLESHOOTING GUIDE
All Herrmidifier 6000 Series Humidifiers are
manufactured under strict quality control and are
subjected to a complete operational test. All circuit board
adjustments are made at the factory and should not be
adjusted beyond the guidelines set in this
troubleshooting guide without first consulting a factory
representative. The following information is for your help
and reference. If you still experience difficulty after trying
these remedies, contact your Herrmidifier representative.
TEST POINTS
Each circuit board (See Figure 12) features three test
points to aid in the troubleshooting process. Each of
these test points works on a 0-4 VDC scale. “0 VDC” =
0%. “4 VDC” = 100%. All readings are between the test
point and ground (Molex J1, terminal 11 [far right of
molex connector, hours wire #11]).
Test Point #1:
Provides exact reading of drain threshold setting.
Test Point #2:
Provides circuit board reference voltage. Should always
read 4 VDC +/-2%.
Test Point #3:
Provides actual percentage of output. For example, a
unit running at 80% of maximum output would have a
Test Point #3 to ground reading of 3.2 VDC.
Maximum Capacity Setpoint
The potentiometer labeled “R39" located in the top left-
hand corner of the board allows adjustment of the unit's
capacity in the range of 50-100% of maximum.
Circuit Board Settings
Models Time Cycle
R23
Low Drain
Setting,
R18
Capacity,
R39
Standard Settings
All 60 sec 90 100%
High Conductivity Settings
(over 1000 micromhos)
All 84 sec 93 90%
Softened Water Settings
(750-1000 micromho)
All 60 sec 92 95%
Low Conductivity Settings
(<100 micromho)
All 60 sec 85 100%
NOTE
A
ll blower units have their capacity set from the
factory at 4 lbs/hr. These units can have thei
r
capacity increased by increasing the capacit
y
adjustment potentiometer. Ensure there is
sufficient air circulation in the conditioned space
to prevent condensation on walls or ceiling
when increasing capacity beyond 4 lbs/hr.
WARNING!
The Herrmidifier 6000 Series Electronic Steam
Humidifier cabinet was designed to house and
shield the components from outside
interference. Absolutely NO other components
may be mounted inside or be electrically tapped
into the humidifier without Herrmidifier's express
written permission. Failure to heed this warning
will void your warranty.
Figure 12
13