Heatcraft makes refrigeration equipment used on many walk-ins, including condensing units and unit coolers. Typical repairs are condenser cleaning, fan motors, capacitors and contactors, defrost parts, controls and refrigerant leaks. Start with the nameplate on the condensing unit or unit cooler and call with what the walk-in is doing.
Open the roof or yard behind many Hattiesburg restaurants and you will find a Heatcraft condensing unit, often paired with a unit cooler inside a box from another maker.
About Heatcraft equipment
Heatcraft Refrigeration Products makes commercial refrigeration equipment for walk-ins and larger systems, sold under several brand names. Condensing units sit outdoors or on roofs, and unit coolers hang inside the box. Model and serial numbers on each nameplate identify the capacity, refrigerant and electrical rating.
Common problems on Heatcraft systems
| Problem | Usual cause |
|---|---|
| Condensing unit trips on hot days | Dirty coil, failed fan or high head pressure |
| Compressor hums, will not start | Capacitor, contactor or compressor fault |
| Unit cooler iced | Defrost heater, timer or termination problem |
| Fans not turning | Motor or capacitor failure, ice |
| Bubbles in sight glass | Low charge or restriction |
| Short cycling | Control, pressure switch or charge problem |
Parts that often need attention
- Condenser and evaporator fan motors
- Capacitors and contactors
- Defrost heaters, timers and termination switches
- Pressure controls
- Filter driers and expansion valves
- Controllers and sensors
Mixed systems are normal
A Heatcraft condensing unit may be paired with a unit cooler from the same family or from another maker, on a box from a third. That is normal and does not prevent repair. What matters is that the capacity, refrigerant and defrost method match, especially after a part has been replaced. See condensing unit vs unit cooler.
Before you call
- Photograph the nameplate on the condensing unit or unit cooler.
- Note the refrigerant listed on the nameplate.
- Note whether it is a cooler or freezer system and the defrost type if known.
- Describe what it is doing: temperature, fans, ice, noise or tripping.
- Note the box brand if there is a label on the door frame.
Do not open electrical panels, touch capacitors or loosen refrigerant fittings. The troubleshooting guide lists safe checks, and the brands guide shows where to find every nameplate.
What we look at on a Heatcraft system
With Heatcraft equipment we start at the nameplates on both the condensing unit and the unit cooler to confirm capacity, refrigerant and defrost type. We measure pressures, superheat and subcooling, check the condenser fan and coil, and test capacitors and contactors. On the unit cooler we check fans, defrost heaters and drain heaters. If either half has been replaced, we confirm the pair is still properly matched.
Repair, upgrade or replace
When the refrigeration system is old, uses a phased-down refrigerant or keeps failing, a new condensing unit or a matched system may be better value than repeated repairs. See the repair or replace guide and upgrades and retrofits.
Repair across Hattiesburg
Walk in cooler repair Experts repairs Heatcraft walk-in refrigeration systems, including condensing units and unit coolers for restaurants, stores, schools, churches, homes, hunting camps and farms in Hattiesburg and nearby communities. Call with your nameplate details and a short description of what the walk-in is doing.
Walk in cooler repair Experts is an independent repair service. It is not affiliated with, endorsed by or an authorized service agent of Heatcraft. Heatcraft is a trademark of its owner and is used here only to identify the equipment.
Questions about Heatcraft walk-ins
Do you repair Heatcraft condensing units?
Yes, as part of walk-in cooler and freezer repair. Call with the nameplate details.
My unit cooler and condensing unit are different brands. Is that okay?
Yes, if they are properly matched for capacity and refrigerant.
Are you a Heatcraft authorized service agent?
No. This is an independent repair service.