It is possible for breakdowns to occur on a freezer, often related to temperature problems. If this happens, it is necessary to react immediately and to shelter the food so that it does not deteriorate further.
Some high-end freezers may display an error message to direct the source of the problem. The freezer may also be beeping and there can be two main reasons why your freezer may be beeping:
- a door left open
- an abnormal rise in temperature.
Generally these sound signals do not have the same tones. They can also be associated with a flashing symbol on the control panel.
The hum of a well-working freezer is a familiar sound in most households, a sound that usually goes unnoticed because it’s so routine. However, when your freezer starts making unfamiliar noises, like a ringing sound, it can be quite disconcerting. This article will help you understand why your freezer might be ringing and what you can do about it.
Normal Sounds vs Problematic Sounds
First, it’s important to distinguish between normal and potentially problematic sounds. Your freezer will make some noise during regular operation. You might hear the compressor kicking on and off, the defrost timer switching, or even the sound of ice being made. However, if your freezer is making a ringing or a high-pitched buzzing sound, it may be a sign of a problem.
Possible Reasons for the Ringing Sound
1. Faulty Evaporator Fan Motor
The evaporator fan motor is a component that circulates the cold air from the coils throughout the compartment. If the motor is faulty or if something obstructs the fan blades, the fan might make a ringing or buzzing noise.
2. Compressor Issues
The compressor is the heart of the freezer’s cooling system. If it’s wearing out or if it’s under too much pressure, it could start making a ringing sound. Over time, this could result in your freezer not being able to maintain the correct temperature.
3. Condenser Fan Motor Problems
The condenser fan motor is located near the compressor and cools the compressor and the condenser coils when the compressor runs. If this fan motor is faulty, it can cause a ringing noise.
4. Loose or Broken Parts
Loose screws, a detached fan blade, or even a loose light bulb can cause a ringing or vibrating sound as they rattle against other components of the freezer.
CHECK DEFROST HEATER
During the defrost cycle, the resistance provides the heat needed to melt the frost to ensure air circulation and optimal cold production. It is usually located next to or in contact with the evaporator.
- Disconnect the defrost resistor connector
- Select the ohmmeter function of your multimeter
- Insert the multimeter leads into the resistors.
- If you have a value showing , the resistor is good.
However, if you don’t have any, then it’s defective and will need to be replaced.
THERMAL SAFETY CHECK
The role of the thermal fuse (pos. 2 in the photo opposite) is to turn off the heating of the defrost resistance in case of abnormal overheating. It usually comes into contact with the evaporator (item 3) from the side.
- Set the multimeter to the continuity function
- Place the test probes on the thermal protection connector.
If you have 1 or OL displayed, it is faulty. On the other hand, if the thermal protection is good, then you will have to replace the electronic card.
What to Do About It
If your freezer is making a ringing noise, here are some steps you can take:
- Check for Loose Parts: Inspect your freezer to see if there are any loose screws or other parts that might be causing the noise.
- Check the Fan Blades: Inspect both the evaporator and condenser fan blades to see if they’re obstructed or if they’re loose.
- Call a Professional: If you’re unable to find the source of the noise, or if the noise is coming from the compressor, it’s best to call a professional. The compressor is a complex component that involves refrigerant, and handling it improperly can be dangerous.
Remember, while some noises are part of the normal operation of your freezer, others can be a sign of a problem. If you’re ever in doubt, it’s best to consult with a professional. Ignoring a problematic noise can lead to more serious issues down the line and might lead to more costly repairs or even a need for a replacement. Regular maintenance and prompt attention to potential issues will keep your freezer running efficiently for many years.