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Page 43
2008-08-28
Symptom Diagnosed Probable Cause Corrective Action
Unit is awaiting a demand or
control signal.
This is normal when there is no need for
humidity. If you believe there is a need for
humidity, and the unit should not be idle,
refer to troubleshooting
Normal Operation
The unit is now boiling water in
the cylinder and filling as
necessary.
This is normal when there is a need for
humidity. If you believe there is no need for
humidity, and the unit should idle, refer to
troubleshooting
Normal Operation
This is not a fault or warning. It
is an indication that the manual
drain switch has been activated.
Manual drain switch has been activated. Press Manual Drain button again to
stop the drain action.
Safety loop circuit (terminal 1
and 2) is open.
One or more of the safety devices is open
as the result of a device failure, improper
installation or an unsafe condition has been
detected.
Determine which device is preventing
continuity of the safety loop circuit, and
verify that it is functioning properly and
is properly installed and calibrated.
Water has reached the top of
the cylinder and has activated
the high water sensor. This is
not an error or fault, but is
normal on start-up and at the
end of a cylinder life span.
1. Normal on start-up with a new cylinder
or a cylinder that has been completely
drained because of an extended off
period. This condition can last several
hours until the water in the cylinder has
concentrated or the electrodes can no
longer provide rated capacity or
adjusted capacity. Water level
automatically rises to meet the demand.
2. Foaming can also cause an invalid high
water indication.
If foaming is determined to be the
cause of the high water indication,
consult your local representative about
possible adjustment and/or a foam
detection kit. If not foaming, consider it
normal operation unless water level is
not at the top of the cylinder.
Keep Warm feature is enabled
and proceeding to a Keep Warm
Cycle.
Unit is entering the Keep Warm cycle. The
unit has been inactive for a given period
and is keeping the water warm.
Normal for unit with Keep Warm setting
activated.
Electronics have determined
cylinder is spent. Within the next
72 hours the humidifier will stop.
The cylinder must be replaced with the
same type and model.
When ordering a new cylinder, quote
the model number presently installed in
the humidifier.
Electronics have determined
that the cylinder is spent.
The cylinder must be replaced with the
same type and model.
When ordering a new cylinder, quote
the model number presently installed in
the humidifier.
The electronics has detected
foaming within the cylinder (only
for units with the optional Foam
Detection Package).
The unit has detected a foaming condition
within the cylinder.
The unit will initiate corrective action on
its own.