Walk-In Cooler or Freezer Not Cooling: What It Usually Is

The Facts

Walk-In Not Cooling

What It Usually Is

Evaporator coil iced over: a defrost heater, timer, or sensor failed, and the ice blocks airflow.
Evaporator fan motor dead or a blade broken: cold air is being made but not moved.
Run capacitor or start components failed on the condensing unit: the compressor hums, overheats, and trips.
Low refrigerant from a leak: the box cools slowly and never reaches temperature.
Condensing unit coil packed with dirt or lint: head pressure climbs, the unit runs hot and cuts out.

Check This First

Open the box: are the evaporator fans turning? Is the coil iced?
Go to the condensing unit: is the compressor running, humming, or silent? Is the coil dirty?
Read the thermometer and write down the time. Climbing fast means airflow; slow means charge or capacity.
Text a photo of the evaporator and the condensing unit to 601-337-1069. It often tells us the part before we roll.

When To Call

Product is above 41°F in a cooler or thawing in a freezer.
The compressor is humming or clicking but not running.
The coil is iced solid, or the fans are not turning.

What the Repair Usually Costs

Fan motors, capacitors, and defrost components are typical-range walk-in repairs. A refrigerant leak depends on where it is. A compressor is the complex range, and we say so with the replacement number next to it. Ranges from our own invoices are on the walk-in cooler repair cost page.

The diagnostic visit turns that range into a number for your unit, and you approve the number before any repair happens.

Condenser coil before and after cleaning by Dirty Works Services

Cold Side

Need the Documents Today?

Text 601-337-1069 with the certificate holder's legal name and address, or email the vendor form. The W-9 and certificate of insurance come back the same business day.

Text the Request

Common Questions

Walk-In Not Cooling FAQ

Should I turn the walk-in off if it is iced?

Turning it off lets the coil thaw, which can get you through a shift, but the ice will come back until the defrost problem is fixed. Keep the door closed and call.

How fast can you get here?

Warm walk-ins get priority because product loss has a clock on it. Text 601-337-1069 with the temperature and your address.

Is it worth repairing an old walk-in?

Usually yes: most warm-box calls are typical-range parts. If the compressor has failed on an old condensing unit, we show you the replacement number next to the repair number.

Walk-In Running Warm? It Is Rarely the Compressor First