Nortec NH-EL Series - Manual (Page 82)

79 | Troubleshooting
Display Message LED
System
Detected
Cause Corrective Action(s)
2 Water foaming 2 Check if water level is at
top of cylinder. If water
is not at top there may
be foam in the cylinder.
Consider the Foam
Mode feature on page
55.
No Current Fault Red
Water level at
top of cylinder
with no current
1 Current transformer
loose on driver board
1 Open disconnect,
ensure current
transformer spade
connectors are secure.
Squeeze with pliers if
loose.
2 Primary wire not looped
through current
transformer.
2 Open disconnect, rewire
primary wire through
current transformer.
3 High water sensor plug
is on an electrode pin.
3 Install high water sensor
plug on cylinder pin with
shroud around it.
Remote Disabled
Warning
Network
shutdown
message
1 Network signal received
by humidifier to shut
down.
1 Normal operation for
humidifier on network
control. Contact network
administrator to enable
humidifier.
RH High Warning
RH higher than
high RH setpoint
1 Setpoint higher than RH
alarm setting
1 If the humidifier is still
operating then check
and adjust setpoints.
RH Low Warning
RH Lower than
low RH setpoint
1 Humidifier not running 1 Check why humidifier is
not running and put it
into operation.
2 Setpoint lower than RH
low alarm setting
2 Check and adjust
setpoints.
Safety Loop Open
Grn
Blink
Security loop
open (terminal 1
and 2)
1 On/Off device
connected to security
loop is open
1a Normal operation, no
action required
1b Wrong setpoint, A/P
not sensing air
movement
2 Loose wire 2 Check wiring to all
On/Off devices
connected to terminals
1 and 2.
SIM Card Fault Red
Controller cannot
detect a valid
SIM card
1 Improper SIM card
installation or missing
1 Check that SIM card is
installed and socket
closed.
2 Incorrect SIM card 2 Check that the SIM card
serial number matches
the humidifier’s.