Troubleshooting - Carel humiSonic User Manual

Source "Secondary" "Main" electrical
electr. panel panel
H
"Main" panel - _________________
High humidity
H
"Main" panel - _________________
Low humidity
2 slow
Humidifier _________________
flashes
EEPROM alarm
_________________
Humidifier 1 fast flash
Remote unit
_________________
Production
Water level alarm
Fill
Humidifier 8 fast flashes
Water presence
Drain
Offline
"Main" panel - _________________
Remote unit offline

9.3 Troubleshooting

Note: if the problem identified cannot be solved using the following
guide, contact CAREL technical service.
1. Firstly, check the humidifier and the surrounding area.
Problem
No atomised water Power supply
production
Feedwater system
The quantity of Power supply
atomised water is
Feedwater system
too low
Other
No atomised water Dust and foreign matter accumulated in the tank (*)
Transducer deterioration
production
The quantity of Dust and foreign matter accumulated in the tank (*)
atomised water is
Scale build-up on the surface of the piezoelectric transducers (*)
too low
(*) These malfunctions can be avoided by carrying out preventive maintenance.
2. If the cause has not been identified with the previous checks, there
may be faulty components. Check the inside of the humidifier.
Problem
No atomised water Feedwater system
production
Other
The quantity of Water level overflow
atomised water is
too low
Cause
The signal from the probe
indicates a humidity higher
than 80%rH
The signal from the probe
indicates a humidity lower
than 20%rH
EE EEPROM problems
E0 Functional test not complete
in the factory / EEPROM
problems
EL Level too high during
atomised water production
due to:
•
fill SV leaks
•
transducer malfunction
The panel does not detect
communication with the
remote unit
Cause
Humidifier switch in the OFF position
No power
Power supply fault
Valve closed upstream
Low power supply voltage
Water level during production is too high and
overflowing
The humidifier is not installed horizontally
Cause
Float level sensor fault
Float level sensor blocked
Fill valve fault
The fan cables are loose or
detached
Float level sensor blocked
Fill valve fault
Solution
Check humidity probe signal/cable
Check humidity probe signal/cable
If the problem persists, contact the
CAREL service centre
If the problem persists, contact the
CAREL service centre
Check:
•
fill SV
•
transducers
Check:
•
serial connection cable
•
power cable
Check
Check the switch
Measure the voltage at the humidifier input
terminals
Measure the voltage at the power supply
output terminals
Check
Check the voltage at the power supply output
terminals
Check visually
Check visually
The average life of the transducer is around
10,000 to 15,000 operating hours
Visually check the inside of the tank
Check
Empty the tank, remove the electronic board
and check continuity of the level sensor
No water filled even when the tank has been
emptied
Check connection after removing the
humidifier cover
If the water level in the tank reaches the
overflow pipe, remove the connector from the
control board and check continuity of the level
sensor
Water is filled even after switching off the
appliance
37 "humiSonic ventilation" +0300063EN - rel. 1.3 - 14.05.2021
Alarm relay Action Reset
activation
yes signal only AUTO
yes signal only AUTO
yes humidification If the fault persists,
stopped contact service
yes humidification If the fault persists,
stopped contact service
yes humidification AUTO
stopped
yes humidification AUTO
stopped
Solution
Switch ON
Connect power
Replace the power supply
Open the valve
Replace the power supply, if
damaged
See table 2)
Adjust
Clean the inside of the tank
Replace
Clean the inside of the tank
and replace the transducers
Solution
Contact service to replace the level
sensor
Clean the sensor. If normal operation is
not restored, replace
Replace the valve
Clean the sensor. If normal operation is
not restored, replace
Restore correct connection to the
terminals
If there is continuity, contact service to
replace the level sensor
Replace the fill valve
ENG
Tab. 9.a
Tab. 9.b
Tab. 9.c