David's Used Appliance sales and repair

Commercial refrigerators must maintain 40°F (4°C) or below for food safety compliance. Walk-in freezers should be at 0°F (-18°C) or below. Many food safety programs require refrigerators to run at 35-38°F for proper margin. If your unit struggles to maintain proper temperature, especially during busy service periods or in hot kitchen environments, call a technician — compressor capacity or refrigerant levels may be the issue.

Chemical dispensing problems are typically caused by: clogged or faulty chemical pumps, incorrect dilution ratios, empty chemical containers, broken injection lines, or control board issues. In low-temperature machines, proper chemical concentration is essential for sanitization — test strips should verify concentration after every repair. Many chemical distributors offer free testing; alternatively, a technician can verify and repair the dispensing system.

Kitchen equipment emergencies include: walk-in cooler/freezer temperature rising (food inventory at risk), gas leak or smell, fire suppression system discharge, electrical sparks or burning smells, complete loss of cooking equipment during service hours, dishwasher failure during a busy shift, or any situation creating an immediate food safety risk. These situations require immediate professional attention and may require temporary closure.