Defrost System Failure
The defrost cycle is not clearing ice from the evaporator, leading to airflow loss and rising temperature in freezer and cold rooms.
What Causes Defrost System Failure
- 01Open or shorted defrost heater
- 02Faulty defrost termination thermostat or sensor
- 03Defrost timer / controller schedule incorrect
- 04Frozen or blocked condensate drain
- 05Failed hot-gas or reverse-cycle solenoid
- 06Fan delay relay not restarting fans
How We Diagnose It
- 01Test heater continuity, resistance and earth leakage
- 02Check termination device and controller defrost settings
- 03Clear and verify condensate drain and drain heater
- 04Test solenoid and fan-delay operation
- 05Set defrost frequency to actual load pattern
Related Repair Services
Equipment Affected
Defrost System Failure Across Gauteng
Speak to a Reyds Technician
Cold chain failure costs stock by the minute. Call or WhatsApp now — a technician is dispatched to your suburb and interim holding steps are confirmed on the phone.
Defrost System Failure — FAQ
What causes defrost system failure?
Common causes include open or shorted defrost heater, faulty defrost termination thermostat or sensor, defrost timer / controller schedule incorrect. We confirm the specific cause through structured testing before replacing any parts.
Is defrost system failure an emergency?
If it affects product temperature, treat it as an emergency. Call or WhatsApp 069 268 0988 and we dispatch a technician with interim stock-saving steps.
Do you repair this fault across Gauteng?
Yes — across all ten Gauteng districts and their suburbs, with 24/7 response.