Freezers are used to store surplus amounts of groceries, including meats and vegetables. Freezers can suffer from a range of mechanical faults that can disrupt the efficient running of households. Freezer problems are often solved by some basic maintenance work, but more complex issues require a professional.
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If you can see a light inside your freezer or hear a fan, the appliance is still working. If you can't see a light, plug another device into the same outlet to determine whether power is coming from the socket. If it works, examine the fuses and circuit breakers. If these are fine, contact an electrician to repair the electrical socket. If the freezer has power but still isn't functioning, it is possibly due to the wiring, the thermostat or the timer on the defrost mechanism. The problem is sometimes caused by the freezer compressor or the overload function.
Lack of Cooling
If your freezer isn't cooling properly, see that the thermostat knob is fixed at the proper setting. If this appears OK, examine the compressor motor to determine if it is running properly. The compressor motor is usually located at the rear of the freezer near the bottom. It should make a consistent humming noise if working. If the compressor is not at fault, the problem is probably due to the freezer's condenser, evaporator or defrost timer. Only allow a qualified electrician to service each of these components.
Freezers that defrost themselves can suffer from heavy frost accumulation around the evaporator coils. Iced-up coils are usually caused by problems with self-defrost mechanisms and can result in inconsistent or poor cooling. Frost present on the walls, roof or base of a freezer are strong signs that the freezer is suffering from excess frost. Self-defrosting freezers should defrost around three times a day. If an element of the defrosting mechanism fails, the freezer keeps trying to cool itself, resulting in icy build-ups around the evaporator coils. This restricts the flow of air over the evaporator coils so the freezer can't reach low enough temperatures.
A noisy freezer may have a faulty circulating fan. Circulating fans move air through freezers and maintain the cooling process. The circulating fan is usually situated near the back wall of the freezer. The circulating fan may become loud or make unusual squeaking or groaning noises. To determine if the fan is at fault, keep the freezer door open and hold down the door switch. If the fan seems louder than with the closed door, the motor is malfunctioning. Freezer fans are not usually serviceable, so you will probably need to install a new one to repair your freezer. Excessive noise is also caused by a condenser fan which has a build-up of debris within its blades. If cleaning it doesn't solve the problem, it may need replacing.
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