A walk-in cooler failure can cost a restaurant thousands in spoiled inventory in a single day. The good news: most failures give warning signs days or weeks before they happen. Here’s what to watch for.
1. Temperature Fluctuations
If your walk-in is cycling between 35°F and 45°F instead of holding steady at 38°F, something is wrong. Common causes include:
- Failing thermostat
- Dirty evaporator coils
- Low refrigerant
- Worn door gasket letting warm air in
Action: Check your temperature logs. If you see swings of more than 3°F, call for service.
2. Ice Buildup on Evaporator Coils
Some frost is normal. Heavy ice buildup is not. If your evaporator coils look like an ice sculpture, your defrost system has failed. This forces the compressor to work overtime and will eventually cause a complete cooling failure.
3. Unusual Noises
You know what your walk-in sounds like when it’s running normally. Pay attention to new sounds:
- Clicking: Relay or compressor issue
- Hissing: Refrigerant leak
- Grinding: Fan motor bearing failure
- Constant running: System struggling to maintain temperature
4. Water on the Floor
Water pooling inside or around your walk-in typically means:
- Clogged drain line
- Failed defrost drain heater
- Cracked drain pan
- Condensation from a gasket leak
Beyond the slip hazard, standing water creates health code violations and accelerates floor panel corrosion.
5. Higher-Than-Normal Energy Bills
If your electricity bill spikes without a corresponding increase in usage, your refrigeration equipment may be working harder than it should. A struggling compressor can use 2-3x more energy than a properly functioning one.
Don’t Wait for the Breakdown
Every one of these signs gets worse over time — and more expensive to fix. A $200 repair today prevents a $2,000 emergency call next week.
Cold Pros offers same-day commercial refrigeration repair and preventive maintenance programs designed to catch these issues before they cost you product. Schedule a service call or call us at (720) 902-8090.