Page 56 • DRI-STEEM XT Series Electrode Steam Humidifier Installation, Operation, and Maintenance Manual
System messages
E messages
The humidifier is factory programmed to display five system
messages: E1, E2, E3, E4, and E5. These messages may also be
programmed to provide remote indication using two relays, r1 and
r2. The E messages indicate the following:
E1: Check the steam cylinder
An E1 message indicates the steam cylinder can no longer meet
demand. Inspect the cylinder to determine if it needs to be
cleaned or replaced. An E1 message is a service message only; the
humidifier will continue to operate with a reduced output. Press the
SET button to acknowledge the message.
An E1 message can also occur during start-up or after installing a
new cylinder if the supply water has low conductivity.
E2: Over current
An E2 message indicates the humidifier has been switched off
due to an over current condition (140% of the nominal current).
Resolve the over current condition by clearing the drain if clogged,
or by cleaning or replacing the cylinder if there is excessive mineral
buildup, and then press the SET button to restart the humidifier.
E3: No water
An E3 message indicates there is no water in the steam cylinder.
The humidifier shuts down automatically after 30 minutes if no
current is sensed. Press the SET button to restart the humidifier.
Check the water supply (supply valve, in-line water strainer, inlet
valve) for water flow. Next, look for constant water flow out of the
drain cup (may indicate drain valve stuck open). Try to clear the
drain valve by going to the Service operating mode to cycle the
drain valve on and off. If this doesn't help, resolve the condition by
manually clearing the drain valve if it is stuck open (see Cleaning
the drain valve in Maintenance procedures section on page 59).
E4: Uncoded processor board
An E4 message indicates a replacement processor board has
been installed uncoded (slide switches in off position). Switch
unit off. Code the processor board switches per the instruction
sheet included with the replacement board to enable humidifier
operation.
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XT_IOM_Jan_2008.pdf 58 11/19/2009 10:13:40 AM
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