Troubleshooting - CLIMAVENETA MICS-C FF Serie Manual De Instalación-Operación-Servicio

TROUBLESHOOTING

FAULT
The chiller does not
start up
Insuffi cient output
Compressor noisy
Noise and vibrations
The compressor stops
due to the activation of
the protection devices
MICS-C / MICS-CN
CAUSE
No voltage
Mains switch in OFF position
Remote switch (if present) in OFF position
Control panel set to OFF
Main unit switch in OFF position
Compressor thermal solenoid switch OFF
Supply voltage too low
Contactor coil faulty
Electronic board faulty
Start-up capacitor faulty (if present)
Compressor faulty
Insuffi cient refrigerant
Sizing of unit
Operation outside recommended limits
Liquid returning to compressor
Inadequate fi xing
Reversed phase (three phase units only)
Contact between metal bodies
Weak foundations
Loose screws
Excessive discharge pressure
Low suction pressure
Low voltage
Electrical connections not suffi ciently tight
Operation outside permitted limits
Faulty operation of pressure switches
Thermal cut-out tripped
I A
REMEDY
Check presence of voltage
Check safety systems upstream
of the appliance
Switch ON
Check power line
Replace the component
Check
Check
Reverse one phase
Check
Repair
Tighten screws
Check
Replace the component
Check supply voltage
Check electrical insulation of
windings
English 06/09
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