47
Pictures for illustra
Ɵ
ve purposes
only
Alerts and alarms
Causes and corrections
This means that the temperature inside the water tank is
too high. The heating elements are no longer completely
immersed.
When this alarm is shown, the water tank is drained out, the
genaral fault alert is trigged on and the humidifier is
stopped.
1. Incorrect water supply. Few or
no water flushes the tank due to
a piece of chalk clogging the
inlet valve. All the water pipe
must be cleaned up.
FAULT : NEED FOR A
CHECKING / A1
2. Faulty water level detector. Make sure that the sensor wires are correctly attached to their posts
and that none of them create short-circuits. Open the detector and clean the electrodes. Make
sure they work well.
In case of a unit fitted with a floating water level device (DI steam humidifier), make sure that all
the floating elements can move freely.
3. Faulty temperature sensor : this message is generally displayed when the water tank is still cold.
The temperature must be replaced and calibrated (s.a. §4).
4. Temperature calibration drifting. The sensor must be re-calibrated.
5. Control correct connection of wires 45, 50, 51, 52, 25, 24, 23, 22 and 21. There should be no
short-circuit.
6. Electronics. Change the water level management board first. If the fault persists, change the main
board.
Water supply tees to clean up
Water filtre inside the
water tank to clean or
change
E
LECTRO
V
AP
RTH-LC
System management - Messages
Float water level
With electrodes
Water level sensor wires