A good commercial appliance maintenance program comes down to one thing: catching small problems before they shut down your kitchen during a dinner rush. Below is a practical checklist you can hand to staff or share with your service vendor, organized by frequency.
Daily Checks (takes about 10 minutes)
These are quick visual and functional checks your kitchen staff can do at open or close.
Refrigeration (walk-ins, reach-ins, prep tables)
- Verify setpoint temperatures are holding. Walk-ins should read below 38°F in practice; the health code cold-hold limit is 41°F, and anything above that is a potential citation.
- Check door gaskets for tears or gaps. A bad gasket forces the compressor to work harder and raises food-safety risk.
- Clear any standing water or ice buildup around drain pans.
Commercial ranges and fryers
- Inspect burner igniters and pilot lights. A burner that won’t light cleanly or has a yellow/orange flame instead of blue needs attention.
- Check fryer oil temperature with a thermometer, not just the dial. Controls drift over time.
- Wipe down grease traps and surface drains. Grease buildup is a fire hazard and also eats through equipment faster.
Dishwashers
- Check wash and rinse temperatures. NSF/ANSI 3 requires 180°F at the final rinse on high-temp machines, or proper sanitizer concentration on low-temp ones.
- Clean out the filter screen at the end of service. A clogged filter drops wash pressure and leaves food debris on dishes.
Weekly Checks
Refrigeration
- Clean condenser coils if accessible. Dusty coils are a leading cause of premature compressor failure in commercial refrigeration. It takes about 15 minutes with a brush and compressed air.
- Check evaporator fan blades for ice buildup. Some frost is normal; heavy ice suggests a defrost problem.
Cooking equipment
- Degrease hood filters and, if your exhaust fan is belt-driven, check the belt condition and tension. Many modern units are direct-drive and skip this step, but belt-drive fans are still common, especially on older installations. A sluggish fan means your fire suppression system may not function as designed.
- Inspect oven door hinges and seals. A warped door leaks heat and skews cook times.
- Check gas line connections for the smell of gas. Any gas smell stops service immediately and means a tech visit, not a DIY fix.
Ice machines
- Wipe down the bin interior with a food-safe sanitizer.
- Check ice production rate. If output drops noticeably, the water filter is usually the first thing to check, followed by condenser coils.
Monthly Checks
All refrigeration
- Test door switches and alarms. Many units have a door-open alarm that staff silences and forgets exists.
- Inspect refrigerant lines for oil staining. An oily spot near a fitting or line set often indicates a slow refrigerant leak. Call a tech.
- Lubricate door hinges.
Cooking and ventilation
- Clean oven interiors and inspect heating elements or burner tubes for cracks or scaling.
- Check exhaust fan for vibration or noise change. Bearings wear out; catching it early typically means a bearing replacement, versus a full motor replacement if you let it go.
- Inspect flexible gas connectors for cracking or corrosion. These have a finite service life.
Dishwashers
- Descale the wash chamber and spray arms with a commercial descaler. Hard water deposits (common in the East Bay) cut wash pressure and shorten heater life.
- Check water inlet valves for slow fill or drips.
Quarterly and Semi-Annual
This is where you want a service vendor involved, not just staff.
- Full refrigeration system check: refrigerant pressures, superheat and subcooling, electrical draw at the compressor.
- Calibrate thermostat controls on ovens and fryers. Controls drift over time, and a fryer running significantly hotter than its setpoint destroys oil and affects food quality.
- Inspect commercial dishwasher booster heater elements and thermostat.
- Full hood cleaning by a certified hood cleaning company. NFPA 96 sets frequency by cooking type: quarterly for high-volume operations with heavy fryer, charbroiler, or wok use; semi-annual for moderate-volume cooking. Your local fire authority and health department set the enforceable minimum.
- Check and calibrate any automated temperature logging systems. If you rely on these for HACCP compliance, they need to be accurate.
Annual
- Replace water filters on ice machines, steamers, and espresso equipment.
- Have a licensed tech inspect and document refrigerant charge on all covered refrigeration. EPA regulations require recordkeeping for systems containing regulated refrigerants; consult your tech on what applies to your equipment given the expanding scope of federal rules.
- Full electrical inspection of equipment connections. Loose connections cause nuisance trips and, in worse cases, fires.
- Review equipment service history and flag anything that’s had three or more calls in a year. At that point replacement often costs less than ongoing repairs.
When to Call a Pro
Some things on this list are genuinely staff-level tasks: wiping down coils, checking temps, cleaning filters. Others look simple but aren’t.
Call a tech when you see: a refrigeration unit running constantly but not holding temp, any refrigerant oil staining, a fryer that won’t hold setpoint, gas smell anywhere, unusual electrical smell or tripped breakers, or ice machine output that drops and doesn’t recover after a filter swap.
In the East Bay and Tri-Valley, health department inspections tie directly to equipment performance. A walk-in logging above 41°F is a citation, not just a maintenance note.
We do commercial appliance and refrigeration service throughout the Tri-Valley and East Bay. If you want to set up a recurring PM schedule or just need someone to go through your kitchen once and tell you what’s actually due, you can reach us at adriumservice.com.