SKR Humidifier – kit N
User Manual
www.neptronic.com
21
17. Troubleshooting guide
Problem
Causes
Corrective actions
The humidifier
does not operate
(
no alarm
)
The humidifier is not powered.
Airflow is not detected by the airflow
proving switch.
Ventilation system fan is not
operating.
The airflow proving switch is not
detected or not operational.
The high limit duct humidistat is not
operational (if available).
Check for the main power supply and fuses.
Check that the sensor tube is connected properly
inside the duct and to the airflow switch.
Check that the airflow switch and the high limit duct
humidistat (if available) are located properly.
Check the fan operation.
The humidifier
does not operate
(
alarm indicator
flashing
)
Check the alarm indicator to
determine the cause
See section 16-Types of alarm to correct the
situation
The duct
downstream of the
dispersion tube is
wet
The installation of the steam
dispersion tube is incorrect.
The capacity of the humidifier is too
high.
The high limit humidistat is not
installed properly or is defective (if
available).
Check if the steam dispersion tube is installed
correctly.
Install a high limit duct humidistat if required.
Verify the installation and the operation of the high
limit duct humidistat (if available).
Water
accumulation
under the
humidifier
The drain pipes are leaking, are
obstructed or the slope is incorrect.
A drain trap is installed on the drain
line.
The water supply connection is
leaking.
The installation of the flexible steam
hose is incorrect.
Evaporation chamber is leaking
steam.
Check all the couplings and drains under the unit.
Remove all drain traps.
Check water supply circuit.
Check that the clamp on the steam hose is properly
tightened on the steam outlet of the evaporation
chamber.
Check the condition of the evaporation chamber
gasket inside the evaporation cover.
