A lab’s ULT freezer is critical to your work. However, what do you do when it stops working? How do you properly diagnose its error? What should you be checking if it starts malfunctioning? In this post, we’ll discuss what you should do when your lab’s ultra-low temperature freezer malfunctions.

At Cryostar Industries, we know just how essential an ultra-low temperature (ULT) freezer is for your lab. It doesn’t matter if you’re in a university, hospital or even a biological lab. No matter your industry, your ULT freezer is an indispensable piece of equipment. Also, as a lab repair service, one of our specialties is ultra-low temperature freezer repair. We know how important they are. Therefore, we’re passionate about keeping yours working to its full potential.


First: What is an Ultra-Low Temperature (ULT) Freezer?

In essence, an ultra-low temperature (or ULT) freezer’s name is indicative of its purpose. Their extremely cold temperatures are ideal for storing drugs, enzymes, tissue samples and other biological specimens. ULT freezers range between -30 and -40 degrees Fahrenheit.

ULT freezers are essential for research and clinical environments. Lab workers in several industries know just how critical they are to their work and research. In addition, there are several reliable methods for filling your freezer for heightened efficiency.


4 Basic Checks When Your ULT Freezer Malfunctions

ULT freezers can experience all sorts of problems that stem from several different components. It’s an intricate device, with a complex mechanical infrastructure. Therefore, what should you do when your freezer stops working? Which parts should you check first? How do you extend the life of your ULT freezer for as long as possible? Below, we’ll discuss the first (and most important) things you should check if your ULT freezer stops working.

1. The Compressor

Many professionals consider the compressor to be the most critical component of a ULT freezer. In addition, industry data shows that the compressor’s failure is usually the cause of a ULT freezer malfunction. Unfortunately, if this is the case, your freezer will need a replacement in order to get back up and running.

However, on a positive note: replacing a compressor isn’t nearly as costly or time-consuming as replacing the entire unit. A reputable lab service provider will be able to diagnose and replace the compressor with minimal downtime or work disruption.

2. The Door/Gaskets

While the compressor is often a freezer’s central issue, the door comes in a tight second place. Usually, these issues can include the handle, latch or incorrect alignment. However, in most cases, the problem involves the gaskets.

The gaskets form a tight seal between the door and the freezer. Therefore, if the gaskets are either dirty or distressed, they’re unable to keep the freezer properly closed. As a result, the cold air escapes, raising the temperature of the unit and likely compromising the samples. Simply wiping down the gaskets with a soft cloth once a month can stop dust and dirt from impeding the gasket seal. Additionally,¬†cleaning the gasket regularly can help you check for cracks, tears, frost build up, or warping. The right care and maintenance can prevent many time-consuming problems with your freezer’s gaskets.

3. Condenser

If your ULT freezer simply won’t stay cold enough, a lot of times the condenser is the problem. Often, the condenser’s coil will leak the refrigerant fluid. In addition, the condenser’s fan will sometimes become stuck. Common solutions from repair services include cleaning the condenser, installing a new filter, or replacing the fan’s blade or motor.

4. The Evaporator

Your ULT freezer’s evaporator is, essentially, what removes the warm air from the unit. This component ensures that the only air in your ultra-low temperature freezer is extremely cold. However, this part of your ULT freezer can also contribute to its malfunctioning.

A very common problem with ULT freezers involves the evaporator freezing. Over time, your freezer’s evaporator can collect condensation. As a result, in such a cold environment, the condensation will turn to frost. Over time, this frost will collect, and eventually cover the entire evaporator. Naturally, this compromises your ULT freezer’s ability to function properly. This particular issue is why industry experts recommend defrosting your ULT freezer at least twice per year. Doing so will inhibit the growth of ice on your evaporator and maximize your ULT freezer’s long-term efficiency.


Conclusion – Cryostar Industries

Checking these four components can be extremely helpful if your ULT freezer isn’t working properly. Understanding your lab equipment is critical to keeping your facility running smoothly and limiting any downtime.

Are you experiencing problems with your ultra-low temperature freezer that you can’t resolve on your own? At Cryostar Industries, we have many years of experience repairing and maintaining ULT freezers for countless labs and preserving their efficiency. For more information on Cryostar Industries or our services, contact us today!

Selective focus of ultra low temperature -70 degree celsius freezer for keeping specimens for laboratory testing in hospital
Call for Immediate Lab Services
Long Island, Nassau & Suffolk County
Call: 516-333-4006
The Bronx, Manhattan, Brooklyn,
Queens, & Staten Island

Call: 718-885-0833
Albany & Southern New York State
Call: 800-564-5513
Piscataway, Northern & Central New Jersey
Call: 800-564-5513
Danbury Connecticut & Surrounding Areas
Call: 203-748-7343

24/7 Emergency Service

Call: 1-800-564-5513