Emergency Walk-In Cooler Repair & CAREL Controller Service – Austin, TX 10.31.26
Setpoint Services responded within one hour to an emergency commercial walk-in cooler service request for Rapid Response Logistics in Austin, Texas. The refrigeration system was a Polar Temp PT3 HEAVY walk-in cooler utilizing R-448A refrigerant, a Copeland compressor, and a CAREL electronic temperature controller.
During the inspection, our technician discovered burned electrical wiring at the temperature controller connection. The damaged wiring was repaired, and the condenser coil was thoroughly cleaned using coil cleaner to improve heat transfer and refrigeration system efficiency.
Additional service included adjusting the controller's temperature differential to 8°F, configuring the evaporator fans to operate continuously except during defrost, and reducing the defrost frequency from six cycles per day to four cycles spaced six hours apart. All modified controller settings were rechecked and confirmed saved.
The refrigeration system was inspected following the repairs. The refrigerant sight glass was clear with no visible flashing, and the compressor and other major motors were operating at the time of inspection.
Replacement of the compressor's separate start and run capacitors was recommended as an additional preventive repair. A separate quote will be provided for approval before that work is scheduled.
