A real annual visit cleans the condenser, checks the electrical parts and refrigerant readings, tests defrost, fans, drain and controls, inspects the door and box, and gives you a written note. Book it in spring, before the heat. Ask for the checklist in advance so you know what you are paying for.
Annual maintenance is the point where a technician looks at everything at once. Small faults that staff cannot see, such as a weakening capacitor, a slow drain heater or a marginal charge, get found while they are cheap. Skipped visits are how a hot weekend turns into a lost week of stock.
What the visit should include
| Area | Checks |
|---|---|
| Condenser and outdoor unit | Clean coil, fans and motors, mounting, electrical connections, contactor and capacitors |
| Compressor | Current draw, oil condition where visible, sound and heat |
| Refrigerant side | Pressures, sight glass, leak signs, filter drier condition, superheat and subcooling |
| Evaporator | Coil cleanliness, fans and blades, heaters, drain pan |
| Defrost | Timer or controller, termination and fan-delay switches, heater current |
| Drain | Flow, trap, freezer drain heater |
| Controls | Set points, sensors compared with a reference thermometer, alarms |
| Box | Door, hinges, closer, gasket, sweep, panels, floor, lights |
When to book in Hattiesburg
- Spring (March to May). Before summer heat and humidity. This is the most valuable visit.
- Fall, if you want a second visit. After the hottest months, and before winter cold snaps.
- After a major storm or outage. Even if the unit seems fine, a surge may have weakened parts.
How to prepare
- Give the technician access to the outdoor unit and any roof or ladder route.
- Have the log ready, and list any noises, alarms or odd behavior you noticed.
- Clear the space around the condenser.
- Know where the disconnects and breakers are.
- Plan for food if the box will be off for a while.
- Have the model numbers and the last service record on hand.
How to tell it was a real inspection
- You received a written report listing what was checked and found.
- Readings were recorded, such as pressures and motor current.
- The condenser was actually cleaned, not just looked at.
- Any recommended repairs were explained with priority and reasons.
- The technician tested a defrost cycle or explained why not.
- You were told what to watch for before the next visit.
A ten-minute visit with no paperwork is a courtesy call, not maintenance. The maintenance and coil cleaning page lists questions to ask before you sign a plan.
How the visit pays for itself
Consider the cost of one emergency: an after-hours call, lost stock, lost sales and a rushed repair. Compare it with an hour of planned work. A visit also gives you a repair-or-replace read on an aging box. See the repair or replace guide if the technician finds significant wear.
The wider routine is in the maintenance checklist.
Questions about annual maintenance
Is one visit a year enough?
For many boxes, yes, timed for spring. Busy kitchens and older equipment may benefit from two.
Should I be there during the visit?
It helps if you or a manager can walk through the findings and ask questions at the end.
What if the technician finds a problem?
Ask what is urgent and what can wait, and get the options and costs in writing before agreeing to repairs.