Carel humiSonic Compact - Page 62

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ENG
“Ultrasound for fancoil” +0300059IE - rel. 1.7 - 24.10.2022
12.1 Troubleshooting
NOTICE: if the problem identied cannot be solved using the following
guide, contact CAREL technical service.
1. Firstly, check the humidi er and the surrounding area.
Problem Cause Check Solution
No atomised water
production
Power supply
Terminal M14 open
Visual verify
Connetct
terminal M14 to a bridge
No power Measure the voltage at the humidier
input terminals of the transformer
Connect power
Power supply fault Measure the voltage at the power
supply output terminals
Replace the power supply
Feedwater system Valve closed upstream Check Open the valve
The quantity of atomised
water is too low
Power supply Low power supply voltage Check the voltage at the power supply
output terminals
Replace the power supply, if
damaged
Feedwater system Water level during production
is too high and over owing
Check visually See following table
Other The humidi er is not installed
horizontally
Check visually Adjust
No atomised water
production
Dust and foreign matter accumulated in the tank (*) Clean the inside of the tank
Transducer deterioration
Verify the d6 >0 parameter Repalce if d6=0
The quantity of atomised
water is too low
Dust and foreign matter accumulated in the tank (*) Check a view the inside of the tank
Scale build-up on the surface of the piezoelectric
transducers (*)
Clean the inside of the tank
and replace the transducers
Tab. 12.b
(*) These malfunctions can be avoided by carrying out preventive
maintenance.
2. If the cause has not been identi ed with the previous checks, there
may be faulty components. Check the inside of the humidier.
Problem Cause Check Solution
No atomised water
production
Feedwater system Float level sensor fault Empty the tank, remove the electronic board
and check continuity of the level sensor
Contact service to replace the level
sensor
Float level sensor blocked Clean the sensor. If normal opera-
tion is not restored, replace
Fill valve fault No water lled even when the tank has been
emptied
Replace the valve
Clean the sensor. If normal opera-
tion is not restored, replace
Other The fan cables are loose or
detached
Check connection after removing the
humidier cover
Restore correct connection to the
terminals
The quantity of
atomised
water is too low
Water level over-
ow
Float level sensor blocked If the water level in the tank reaches the overow
pipe, remove the connector from the control board
and check continuity of the level sensor
If there is continuity, contact service
to replace the level sensor
Fill valve fault Water is  lled even after switching o the appliance Replace the  ll valve
Tab. 12.c