Bohn Commercial Refrigeration Repair

Unit Coolers

Evaporator assemblies that circulate air through a walk-in or other refrigerated space. Fan operation, coil condition, drainage and defrost behaviour are part of diagnosis.

Condensing Equipment

Remote condensing components reject system heat. Coil condition, fan operation, electrical controls and refrigeration measurements must be considered together.

Controls and System Sequence

Controllers, sensors and connected components coordinate temperature and defrost operation. A system-level test helps identify where the sequence changes.

Conditions That Need Investigation

• The room no longer maintains its required temperature
• Frost returns quickly or spreads across the coil
• A unit-cooler fan is noisy, slow or stopped
• Water or ice develops near the drain pan or line
• Defrost does not start, end or recover as expected
• The condensing section cycles unusually or stops
• The controller shows an alarm or inconsistent reading

One Symptom Can Cross Several Components

A frosted unit cooler may involve airflow, defrost, drainage, a sensor, controls, infiltration or a refrigeration-side condition. A warm room may involve the enclosure, evaporator, condensing section, electrical sequence or operating load.

Changing a visible component without confirming the cause can leave the original fault unresolved.

Bohn System Diagnostic Process

1. Map the system. Identify the Bohn component, connected condensing equipment, controls, application and design temperature.
2. Record room conditions. Compare set point, controller reading and independent temperature observations.
3. Inspect the evaporator side. Check fans, coil, frost pattern, drain pan, drain path and accessible wiring.
4. Review defrost and controls. Test the sequence and relevant sensors, heaters or control outputs for the application.
5. Assess the condensing side. Inspect heat rejection, fan operation, electrical components and required refrigeration measurements.
6. Confirm and verify. Document the cause, approved scope and post-repair system operation.

Possible Repair Scope

Confirmed work may involve a fan motor, sensor, controller, relay, contactor, defrost component, drain condition, coil-related component or another measured refrigeration-system fault.

Component selection follows the Bohn model and the connected system configuration.

Walk-In Cooler Applications

Positive-temperature rooms depend on stable airflow, drainage, controls and enclosure performance. The unit cooler and condensing equipment are evaluated within that operating context.

Walk-In Freezer Applications

Low-temperature rooms add defrost and ice-management demands. Coil, fan, drain, heater, control and door observations help define the next measurements.

Preventive Maintenance

Planned checks can track fans, coils, drain pans, drain paths, defrost observations, controls, contactors, condenser condition and operating temperatures. Findings should be tied to the exact system.

Businesses Using Remote Refrigeration

Bohn components may be found in refrigeration serving restaurants, grocery and specialty retailers, bakeries, butcher shops, commissaries, warehouses and other operations with walk-in cold storage.

Related Refrigeration Services

• Commercial Refrigeration Repair
• Walk-In Freezer Repair
• Commercial Freezer Repair

Bohn Refrigeration Service Areas

Service is organized across Toronto and the approved surrounding areas. These are service areas, not separate branch offices.

View Commercial Refrigeration Service Areas