Nortec NHPC User Manual

75 | Troubleshooting
No. Display
Message
LED System Detected Cause Corrective Action(s)
W16
Excess Current
Current has
exceeded 130%
of max
5 Water supply too
conductive
5a Contact NORTEC
representative for
recommendation on
alternate cylinder
5b Change the water
supply
E16 Red
6 Wrong cylinder installed
6 Install correct cylinder
model
7 Cylinder Spent but not
detected by software
7 Replace the cylinder (see
maintenance chapter)
E17 Req off current Red
Current detected
with no demand
1 Contactor seized closed
1 Open Disconnect, check
if contactor is closed
2 Driver Board out of
Calibration
2 If display indicates output
with contactor open then
replace the driver board.
W18
Foam
Foam inside the
cylinder.
1 Back pressure
restricting water from
entering cylinder
1a Check for restrictions
and proper condensate
removal in steam line.
1b If water is going down
drain during fill cycle
then install fill cup
extension kit.
2 Organic material in
water
2 Install filter to remove
organic material
E18 Red
3 Drain blocked water
over concentrated
3 Clean the drain line
4 Humidifier short cycling 4 Observe operation to
insure humidifier can
normally run long enough
to perform a drain. If not
see W44 / W45 – Short
cycling.
W19
Cylinder Spent
Yel
Electrodes
covered with
scale.
1 Cylinder electrodes are
covered with scale and
humidifier cannot meet
demand
1 Replace cylinder with
same model number (see
maintenance chapter)
E19
Yel
Red
W20
Conductivity too
low
Low water
conductivity
1 Drain valve leaking 1 Clean drain valve or
replace (see
maintenance chapter)
2 Back pressure causing
some fill water to go
down drain
2a Check for restrictions
and proper condensate
removal in steam line.
2b If water is going down
drain during fill cycle
then install fill cup
extension kit.
3 Wrong Cylinder
Installed
3 Install cylinder of same
model number as was
previously installed

Nortec NHPC Specifications

General

Brand	Nortec
Model	NHPC
Category	Humidifier
Language	English