Huawei NetCol8000-A Series User Manual page 191

NetCol8000-A(050, 100) In-room Air Cooled Smart
Cooling Product
User Manual
Symptom
The humidification
function fails.
The heating
function fails.
Issue 12 (2020-10-28)
Possible Cause
An indoor fan is damaged.
The high water level
detection switch is being
protected.
The infrared humidifier
lamp is burnt out.
Circuit breakers, fuses, or
cables are disconnected.
The water pan in the
infrared humidifier is not
filled with water.
There is no humidification
requirement.
The electrical heater
temperature switch is being
protected.
The airflow loss switch is
faulty, or the electrical
heater circuit breaker is off.
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7 System Operation and Maintenance
Reference Solution
Measure the output voltage
of the indoor fan contactor.
If the voltage is in the
range of main input
voltage with the 10%
deviation, the fan is
damaged. Replace the
faulty indoor fan.
Check whether the high
water level detection
switch is faulty. Replace the
faulty switch.
Measure the current of
humidifier. If no current
exists, the lamp of
humidifier is damaged.
Replace the lamp.
Check the infrared
humidifier connections.
Check whether the water
pressure is proper.
Check the status of the
water injection solenoid
valve.
Check whether the water
injection pipe is blocked.
Check whether the water
inlet pipe valve is opened.
Check for any requirement
on the LCD.
View the alarm, check the
manual reset temperature
switch for the electric
heater, and manually
switch it on if it was
switched off.
Check the temperature
switch and replace it if it is
faulty.
Check whether the airflow
loss switch is properly
connected.
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