30
Fault Isolation
Condair TE
7.4
Warnings and Faults
Warnings and faults for the humidifier are indicated by the alarm light on the remote controller and by
LEDs on the humidifier control unit. When receiving an alarm, find the humidifier with the problem (using
the Find button on the remote control), then inspect the LEDs on the control unit. Refer to the table below
to understand the LEDs, and resolve the issue before resetting the alarm.
For more detailed descriptions on general issues, refer to
.
Table 11: LED Fault Patterns (refer to
LED No. LED Illumination Pattern
Description
Solution
LED 1
LED 1 Blinks quickly (0.1-sec
-
ond intervals).
Occurs when there is a communica
-
tion error.
This may be due to incorrect wiring,
loose wires, damaged wires, or
excessive wiring lengths.
Check the wires between the remote
controller and the main humidifier, and
check the wires between the humidifi
-
ers in the group.
Reconnect and secure any loose
wiring. Replace damaged wires. Ensure
wire lengths are as short as possible.
LED 1
LED 2
LED1 blinks slowly (0.5-sec
-
ond intervals).
LED 2 blinks quickly (0.1-sec
-
ond intervals).
Occurs after 950 000 counts of
operation. The unit stops operating,
but can be restarted.
Press and hold the power button for 10
seconds to restart the unit.
Water supply unit to be replaced soon.
LED 1
LED 2
LED 1 blinks quickly
LED 2 illuminates.
Occurs after 1 000 000 counts of
operation (approx. 5 years, at 5000
hours per year). The unit stops oper
-
ating and an alarm signal is created.
Replace the water supply unit.
LED 3
LED 3 illuminates
Occurs when the water level in the
drain pan is too high.
This may indicate an error with the
drain pump, or a blockage at the
drain pan.
Inspect the drain pain for blockages
and clear them if present. Check the
drain pump for damage or malfunction.
Check DIP switch settings DS1 for cor
-
rect water volume rate (refer to section
)
LED 4
LED 4 Illuminates
Occurs when a water leakage is
detected in the humidifier.
The water droplet collection panel
above the drain pan contains a water
leakage sensor on its surface. This
error may indicate an issue with
foaming, water spraying or leaking
out of the supply or drain line.
Check the supply headers feeding
water to the humidification module. The
headers may be blocked with sediment.
Check the hoses/pipes inside the unit
for holes or cracks.
Check DIP switch settings DS1 for cor
-
rect water volume rate (refer to section
).
Clean or rinse the humidification
module.
Replace parts as necessary.
LED 5
LED 5 Illuminates
Occurs when water supply solenoid
valve leakage or drain error in drain
pump.
Check the water supply solenoid valve
or drain valve for damage or blockages.
Check DIP switch settings DS1 for cor
-
rect water volume rate (refer to section
)
Clear the blockage, or replace the part.
LED 7
LED 7 Illuminates
Occurs when drain error in drain
pump.
Check the drain valve for damage
or blockages. Check the drain hose/
pipe installation (proper incline, proper
heights and sizes, etc.). Check DIP
switch settings DS1 for correct water
volume rate (refer to section
Clear the blockage, reconfigure the
installation, or replace the part.