How to Clean and Maintain Your Hobart Commercial Refrigerator

What a Hobart refrigerator is and why it matters for your kitchen

Hobart makes commercial-grade refrigerators built for restaurants, bakeries, delis, and other food businesses—but some models sit in larger household kitchens or shared spaces. These units are heavier-duty than home refrigerators: they cool faster, hold temperature more precisely, and are designed to handle constant opening and closing. If you own or manage one, the cleaning and maintenance routines are different from what works for a standard fridge, and skipping them costs you in food waste and repair bills.

The stainless steel exterior, sealed compressor compartment, and commercial-grade shelving all need specific care. Hobart units also run on different electrical systems than home models, and their drainage and condenser coils are positioned differently. Understanding these differences means your food stays fresher longer and your unit runs without unexpected breakdowns.

Key Takeaways

• Hobart refrigerators need the condenser coils cleaned every two to four weeks because they accumulate dust faster than home units and sit in busier kitchens.
• The drain pan and drain line must be checked weekly and cleared of debris, since clogs cause water pooling and mold growth inside the cabinet.
• Stainless steel surfaces should be wiped down daily with a damp cloth and dried immediately to prevent water spots and corrosion.
• Temperature should be checked with a separate thermometer twice weekly, since the unit's internal gauge can drift and food safety depends on consistent 35–38°F storage.
• Gaskets (door seals) should be inspected monthly for cracks or hardening, because a failing seal lets warm air in and forces the compressor to work harder.

Daily cleaning tasks that keep the interior fresh

Start each day by wiping down the interior walls and shelves with a damp cloth and mild soap—not bleach, which can damage the stainless steel lining. Pay special attention to the corners and the area where shelves meet the walls, since spills pool there and bacteria grow quickly. Dry the surfaces immediately with a clean towel to prevent water spots and mold.

Check the drain pan at the bottom of the unit (usually accessible from the front or side) and empty any standing water. If water sits for more than a few hours, it becomes a breeding ground for mold and creates odors that spread to stored food. While you have the pan out, rinse it with hot water and a small amount of dish soap, then dry it before replacing it.

Wipe down the exterior stainless steel with a damp cloth and dry it immediately. Fingerprints and water spots are not just cosmetic—moisture left on stainless steel can cause pitting and corrosion over time. Use a microfiber cloth rather than paper towels, which leave lint behind.

Weekly maintenance that prevents major problems

Once a week, pull out the drain pan completely and inspect the drain line—the small tube that runs from inside the cabinet to the pan. Use a straightened paperclip or a small brush to clear any debris (food particles, mineral buildup, or mold) from the opening. A clogged drain line is one of the most common reasons water pools inside a Hobart unit, and pooling water ruins food and creates odors that are hard to eliminate.

Check the door gasket (the rubber seal around the door frame) by running your finger along it. It should feel firm and flexible, not cracked or hardened. If you see visible cracks or if the gasket feels stiff, it needs replacement—a failing seal lets warm air leak in, which forces the compressor to run constantly and shortens the unit's life.

Measure the internal temperature with a separate refrigerator thermometer (not the dial on the unit itself, which can drift). The temperature should read between 35°F and 38°F. If it is higher, the thermostat may need adjustment or the condenser coils may be too dirty. If it is lower, you may be storing items that freeze easily, or the thermostat is set too cold.

Bi-weekly condenser coil cleaning—the most important maintenance task

The condenser coils sit behind or beneath the unit and release heat as the refrigerant cools the cabinet. In a busy kitchen, these coils collect dust, grease, and food particles much faster than in a home refrigerator. When coils are clogged, the compressor has to work harder to cool the cabinet, which raises your electric bill and shortens the compressor's life.

Every two to four weeks, unplug the unit and locate the condenser coils. On most Hobart models, they are accessible from the back (you may need to pull the unit away from the wall) or from a removable panel on the front or side. Use a soft brush or a coil-cleaning brush to gently remove dust and debris. Do not use a pressure washer or spray water directly on the coils, which can bend the fins and reduce cooling efficiency.

If the coils are greasy (common in kitchens with fryers or grills nearby), use a commercial coil cleaner designed for refrigeration equipment. Spray it on according to the product instructions, let it sit for the recommended time, then brush gently and wipe with a dry cloth. Plug the unit back in and check that the temperature returns to normal within an hour.

Handling odors and stains in a commercial unit

Odors in a Hobart refrigerator usually come from three sources: a clogged drain line (the most common), spilled food that has dried on shelves or in corners, or mold growing on the gasket. Start by clearing the drain line as described above. Then remove all food, take out the shelves, and wash them with hot soapy water. Wipe down every interior surface, paying special attention to corners and crevices where spills hide.

For stubborn odors, place an open box of baking soda on a shelf and leave the door closed for 24 hours. Baking soda absorbs odors without adding chemical smells that can transfer to food. If the smell persists after the drain is clear and the interior is clean, the odor may be coming from mold inside the compressor compartment, which requires a service call.

Stains on stainless steel shelves or the interior walls can usually be removed with a paste of baking soda and water. Apply it, let it sit for 10 minutes, then scrub gently with a soft brush and rinse thoroughly. For rust spots on stainless steel, use a commercial stainless steel cleaner or a small amount of white vinegar on a cloth, then dry immediately.

Seasonal deep cleaning and inspection

Four times a year (or every three months), do a thorough inspection and cleaning. Remove all food and shelves. Wash the shelves in a sink with hot soapy water and dry them completely before replacing them. Clean the interior walls, floor, and ceiling with a damp cloth and mild soap, then dry everything.

Inspect the door hinges and latch mechanism. Tighten any loose bolts with the appropriate wrench. Check that the door closes smoothly and seals completely—if it swings open on its own or does not seal tightly, the hinges may need adjustment or the gasket may need replacement.

Vacuum or brush the area around and behind the unit to remove dust and debris that can be drawn into the condenser coils. If the unit has a fan (most commercial models do), listen for unusual noises—grinding, squealing, or rattling—which signal a bearing problem or loose component that needs professional repair.

When to call a service technician

Some problems require professional help. If the temperature will not hold steady despite cleaning the coils and checking the thermostat, the refrigerant may be low or the compressor may be failing. If you hear grinding or squealing noises, a bearing or motor component is likely damaged. If water leaks from the unit despite a clear drain line, the drain pan itself may be cracked or the drain line may be blocked inside the cabinet where you cannot reach it.

Hobart units are built to last, but they need regular maintenance to stay reliable. If you notice any of these problems, contact a commercial refrigeration technician rather than trying to repair the unit yourself—commercial refrigerants and electrical systems are not safe for untrained handling.

Frequently Asked Questions

How often should I replace the gasket on a Hobart refrigerator?

Gaskets typically last three to five years depending on how often the door opens and closes. Inspect yours monthly—if it feels hard, cracked, or no longer seals tightly, replace it. A failing gasket lets warm air in and forces the compressor to work constantly, raising your electric bill and shortening the unit's life.

Can I use bleach to clean the inside of a Hobart refrigerator?

No. Bleach can corrode stainless steel and leave chemical residue that transfers to food. Use mild dish soap and water instead, or a commercial food-safe sanitizer if required by your health department. Always rinse thoroughly and dry immediately.

What should I do if water is pooling inside the cabinet?

First, check and clear the drain line with a straightened paperclip or small brush. If water returns within a few hours, the drain pan may be cracked or the drain line may be blocked deeper inside the cabinet. Contact a service technician—do not ignore pooling water, as it causes mold and food contamination.

Why is my Hobart refrigerator running constantly?

The most common cause is dirty condenser coils, which force the compressor to work harder to cool the cabinet. Clean the coils as described above. If the temperature is still high after cleaning, the thermostat may need adjustment or the refrigerant may be low—both require a service call.

Is it normal for a Hobart refrigerator to be noisy?

A slight hum from the compressor is normal. Grinding, squealing, rattling, or clicking noises are not normal and signal a mechanical problem. Stop using the unit if you hear these sounds and contact a service technician, as continuing to run it may cause further damage.