Nortec SE Series - Manual (Page 79)

Troubleshooting | 76
SETC Warnings and Faults
The self-diagnostic system built into the SETC is continually monitoring the operation of the
humidifier.
Warnings

When problem symptoms are detected, the SETC will attempt to take self-corrective actions
to try to correct the problem. A warning is displayed on the screen for information purposes
and the humidifier continues to operate.

If the condition which generated the warning is eliminated the warning is cleared from the
display.
Faults

If the humidifier is not able to self correct a problem symptom it will if necessary respond by
shutting itself down.

When this occurs the humidifier illuminates the red “Fault” LED, shuts off the signal to the
CV valve actuator, and activates the “Error” relay of the remote relay board.
Clearing a Fault

Check the fault message that the humidifier is displaying and take any necessary actions to
correct the cause(s) as outlined in Table 13, Troubleshooting Warnings and Faults.

Power cycle the humidifier with the On/Off switch waiting 3 seconds between turning it off
and on.
Table 13: Troubleshooting Warnings and Faults
Code Display
Message
LED System Detected Cause Corrective Action(s)
CLF
Clock Fault
Red
Controller
system clock
failure.
1 Software has detected
a hardware problem
with main control
board
1 Restart humidifier, if
error occurs within 1
minute replace main
control board. If error
does not occur then
primary power
fluctuation may be the
cause.
DCF
Drain Ck Fault
Red
The drain pump
is activated but
water level has
not decreased
1 Drain blocked
1 Check water flow at air
gap when drain
activated. Flow should
be > 5 gal (20 l) / min.
2 Pump not working
2a Check wiring to pump.
2b Activate pump with
diagnostic output test
and verify pump runs
and drains water.