Troubleshooting - Carrier 61AF Instrucciones De Instalación, Funcionamiento Y Mantenimiento

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61 AF

Troubleshooting

A list of possible faults, as well as the probable cause and suggested solutions is shown as follows. In the event of a unit malfunction it is
recommended to disconnect the power supply and ascertain the cause.
SYMPTOMS
Unit does not start:
Unit runs continuously or starts and stops frequently:
Unit continuously cuts out at low pressure:
Unit continuously cuts out at high pressure:
Abnormal system noise:
Compressor loses oil:
Water loss:
The unit does not defrost:
CAUSE
No power supply;
Main switch open;
Low line voltage;
A protection has tripped;
Contactor stuck open;
Loose electrical connections;
Defective compressor contactor;
Refrigerant losses;
Total water flow too low;
Static pressure in the hydraulic circuit too low;
Refrigerant losses;
Low water flow in the exchanger;
Unit start-up delay;
Defective high pressurestat;
Blocked expansion valve;
Blocked filter drier;
The outdoor fan/s does/do not work;
Obstructed or dirty battery;
Piping vibration;
Noisy compressor;
Hissing expansion valve;
Badly fitting panels;
Leaking refrigeration circuit;
Defective entering or leaving connections;
Four-way reversing valve faulty;
Defrost sensor broken;
E N G L I S H
REMEDY
CONNECT POWER SUPPLY.
CLOSE SWITCH.
CHECK VOLTAGE AND REMEDY THE DEFICIENCY.
RESET.
CHECK AND IF NECESSARY REPLACE CONTACTOR.
CHECK CONNECTIONS.
CHECK AND IF NECESSARY REPLACE CONTACTOR.
CHECK AND ADD THE NECESSARY QUANTITY.
CHECK FOR PRESSURE DROP IN THE HYDRAULIC
CIRCUIT.
CHECK IT ON THE PRESSURE GAUGE AND RESTORE IT
IF NECESSARY.
CHECK AND ADD THE NECESSARY QUANTITY.
CHECK WATER PUMP.
WAIT UNTIL THE SYSTEM HAS STABILISED
CHECK AND IF NECESSARY REPLACE PRESSURESTAT
CHECK AND REPLACE IF NECESSARY
CHECK AND IF NECESSARY REPLACE FILTER
CHECK THE CONDITION OF THE FAN MOTOR/S AND ITS/
THEIR ELECTRICAL CONNECTIONS
REMOVE THE OBSTRUCTION OR CLEAN THE BATTERY
SUPPORT PIPING
CHECK AND CHANGE IF NECESSARY
CHECK AND ADD REFRIGERANT IF NECESSARY
INSTALL CORRECTLY.
REPAIR LEAK.
CHECK AND TIGHTEN IF NECESSARY
CHECK AND REPLACE THE VALVE IF NECESSARY.
CHECK AND REPLACE THE SENSOR IF NECESSARY.
GB - 13
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