EmergencyDiagnostic guide
Walk-in cooler not cooling
A walk-in above 41°F is product on a clock. Move what you can, and we will get a refrigeration tech on site fast.
01 / 04Likely causes
What is usually
behind it.
The shortlist of root causes we find on this call. The truck is stocked for most of these.
- 01Iced-over evaporator coil
- 02Failed defrost timer or heater
- 03Condenser coil clogged
- 04Door gasket worn or torn
- 05Low refrigerant charge from a slow leak
- 06Evaporator fan motor failed
02 / 04Right now
Do this while you wait.
Steps that can save product, prevent damage, and shorten the repair once we are on site.
Do this
- Move temperature-sensitive product to a working unit
- Keep the door closed; do not prop it open
- Note the supply air temp and discharge line temp if possible
Do not do this
- Do not turn the unit off and on repeatedly
- Do not chip ice off the coil with a tool
03 / 04On the truck
What our tech will check.
The diagnostic flow we run on this call. Most are resolved on the first visit.
- 01Inspect coils, fans, and door gaskets
- 02Check refrigerant charge and superheat
- 03Test defrost cycle and clear blocked drains
- 04Recover product to working refrigeration if needed
Fast dispatch
Most calls see a tech in under two hours.
First-visit fix
Common parts on every truck.
Documented
Photos and notes attached to your ticket.
04 / 04Related service
This sits under
our refrigeration service.
Walk-ins, reach-ins, prep tables, and ice machines — kept inside spec so product never sits in the danger zone.
Related problems
Might also be one of these.
Other failures with similar symptoms or in the same trade.
Urgent
Ice machine not making ice
Read guide
Urgent
Fryer not heating or pilot will not light
Read guide
Urgent
Kitchen hood not pulling smoke
Read guide
Urgent
Espresso machine not building pressure
Read guide
Urgent
Restaurant drain clogged or backing up
Read guide
Emergency
Gas smell near kitchen equipment
Read guide
Service request