Undercounter Freezer



One of the best ways to keep an undercounter freezer running efficiently is to keep the condensing coil (and filter, if installed) clean.

Even a light coat of dust, lint, or grease will decrease cooling efficiency and cause the compressor to run at higher pressures and temperatures.


When this happens, it takes a longer time to cool the box to the desired temperature, so the compressor consumes more power.

The higher temperatures and pressures also shorten the service life of the compressor, and most of the compressor failures I've seen with these types of units have been caused by dirty, usually totally plugged, condenser coils.


Are you interested in helping your equipment run more efficiently and last longer?


Put your undercounter freezer, and your other refrigeration equipment, on a regular maintenance schedule.

Be sure your freezer isn't installed in a location that's too warm.

Make sure it isn't exposed to direct sunlight.

Make sure there is good air flow through the condenser coil.

Make sure there's no heat blowing into the condenser coil from other refrigeration equipment, or from any cooking equipment.

Make sure the door gaskets are in good condition, and that they're sealing correctly.


If you're a technician troubleshooting an undercounter freezer, our System Evaluation Manual has a cycle diagram and guidelines for evaluating the pressures and temperatures on air conditioning and refrigeration systems.


I hope this page has helped, and please, feel free to contact us with any specific HVAC questions you might have, including questions about refrigeration on Guam, and air conditioning on Guam.

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