Nortec SE Series - Manual (Page 81)

Troubleshooting | 78
Code Display
Message
LED System Detected Cause Corrective Action(s)
FLF Float Level
Red
More than one
Float Level is
registering at the
same time
1. Float chamber or
board not in place
1 Check that float board
is properly installed in
plastic support , that tie
wrap is in place, and
that float reservoir is in
place.
FLF
(Cont)
2 Float level sensor is
malfunctioning.
2 Squeeze bottom hose
from float chamber and
activate fill valve using
diagnostic output test.
Watch for proper light
sequence. Replace
assembly if sequence is
incorrect.
FTF
Fill Fault /
Warning
Red
The fill valve has
been active for
an extended
time without
reaching level 1.
1 Water supply off or
inadequate
1a Ensure water line is
open and that adequate
water supply and
pressure is available.
2 Fill valve strainer
blocked
2a Disconnect water
supply line and remove
strainer. Clear if
obstructed.
FTW
3 Fill Valve not activating 3a Check wiring to fill
valve.
3b Activate fill valve with
diagnostic output test.
Verify water is flowing
when activated.
4 Float board not
detecting water
4a Check wiring to float
board.
5 Manual drain switch on
or auxiliary drain open.
5a Check that manual
drain switch is not on.
5b Check that auxiliary
drain valve is closed.
HMF
Maint. Fault /
Warning
Red
The Humidifier
Maintenance
interval and 72
hour window for
cleaning has
expired 1 Humidifier requires
maintenance
1 Perform humidifier
maintenance as
described Maintenance
Schedule on page 65
HMW
Yel
The preset
service interval
time has
expired. 2 Service reminder not
reset after
maintenance
2 Reset service reminder
as described in Reset
Service Reminder on
page 50
KWF
Keep Warm
Fault
Red
Keep Warm
activated but
tank
temperature has
not increased
within time
allotted 1 Tank temperature
sensor not detecting
warm tank.
1a Check tank to see if hot
(caution).
1b Check wiring to tank
temperature sensor.
1c Check if sensor closed
when tank is hot.