A hissing sound coming from the freezer of your refrigerator after cleaning and removing ice could indicate a few potential issues. The most likely problem is related to the refrigerant system. Here are some possible explanations:
Refrigerant leak: The hissing sound might be caused by a refrigerant leak. Refrigerant is a gas used in the cooling process, and if there's a leak, it can escape and create a hissing noise as it moves through the system. A refrigerant leak can impact the cooling efficiency of the refrigerator and should be addressed promptly.
Pressure equalization: Another possible cause of the hissing sound is the pressure equalization of the refrigerant system. When you turn on the refrigerator after cleaning it, the sudden change in temperature and pressure inside the system can lead to this noise. This is not necessarily a problem if it occurs only momentarily.
Evaporator fan: The hissing sound could also be related to the evaporator fan inside the freezer. If the fan's blades are misaligned or if there is debris obstructing its movement, it may produce a hissing noise as it spins.
Water inlet valve: Some refrigerators with ice makers and water dispensers have a water inlet valve that could be causing the noise. If there is a leak or if the valve is malfunctioning, it might result in the hissing sound.
In any case, it is essential to have the refrigerator inspected and repaired by a qualified technician. Refrigerant-related issues can be hazardous, and only trained professionals should handle them. If it's a refrigerant leak, they will need to locate the leak, repair it, and recharge the refrigerant to the correct levels.
For the evaporator fan or water inlet valve issues, a technician can diagnose and fix the problem as well. Regular maintenance and timely repairs can help extend the lifespan of your refrigerator and prevent more significant problems down the line.
If your refrigerator is under warranty, contact the manufacturer or the authorized service center for assistance. Otherwise, look for a reputable appliance repair service in your area to handle the issue. Remember to unplug the refrigerator and avoid using it until the problem is resolved to prevent further damage.