Service Hub · 24/7 Johannesburg
Defrost System Repairs Johannesburg
Defrost failures are the single biggest cause of ice build-up and cooling loss in cold and freezer rooms. We repair the full defrost system — heaters, timers, sensors and drains.
Fault Symptoms
- [01]Ice build-up on the evaporator
- [02]Defrost not clearing
- [03]Water leak from the unit
- [04]Temperature rising after defrost
Possible Causes
- [01]Defrost heater failure
- [02]Defrost timer or controller fault
- [03]Defrost termination sensor failure
- [04]Drain line freeze or blockage
Professional Diagnostic Process
We test each heater for continuity, verify the defrost schedule, check the termination sensor and inspect the drain line and heater.
Repair Process
We replace failed heaters, recalibrate or replace controllers, clear drains and install drain line heaters where needed.
Frequently Asked Questions
Why does ice keep returning after I defrost manually?
Manual defrost doesn't fix the failed defrost system — the ice returns because the heater, timer or sensor is still faulty.
Is a water leak related to defrost?
Very often. A frozen or blocked defrost drain causes water to leak inside the room.
Can defrost be adjusted to suit my load?
Yes. We set defrost frequency and duration to match your actual operating conditions.
Available in Every Johannesburg Suburb
Johannesburg
Greater Johannesburg
~35m
Johannesburg CBD
Central
~30m
Sandton
Northern
~25m
Rosebank
Northern
~25m
Bryanston
Northern
~30m
Rivonia
Northern
~30m
Morningside
Northern
~28m
Randburg
North-Western
~35m
Fourways
Northern
~40m
Roodepoort
Western
~45m
Midrand
Central
~50m
Woodmead
Northern
~30m
Sunninghill
Northern
~32m
Melrose
Northern
~26m
Hyde Park
Northern
~28m
Illovo
Northern
~27m
Bedfordview
Eastern
~35m
Edenvale
Eastern
~40m
Kempton Park
Eastern
~45m
Internal Linking Engine