FLT-DEF-05 · High SEVERITY
Emergency Defrost FailureCape Town — 24/7
When the defrost cycle stops working, ice accumulates until the coil is a solid block and cooling effectively ceases.
FLT-DEF-05 Diagnostic Report
Defrost Failure — Symptoms, Causes & Repair
Warning Signs
- Ice building past the defrost termination point
- Defrost heater cold during scheduled defrost
- Drain pan overflowing or frozen solid
- Fan running during defrost (should be off)
- Room temperature rising after each failed defrost
Root Causes
- Open defrost heater element
- Defrost timer or controller failure
- Defrost termination thermostat stuck closed
- Blown fuse or tripped defrost circuit breaker
- Wiring fault at the defrost contactor
On-Site Diagnostics
- Force a defrost and monitor heater amperage
- Test defrost termination sensor resistance at temperature
- Verify defrost timer/controller output and schedule
- Check defrost circuit fuse and contactor coil
- Inspect heater wiring for open or shorted elements
Repair Procedure
- Replace open defrost heater elements
- Install new defrost controller or timer module
- Replace defrost termination thermostat
- Repair defrost circuit wiring and contactor
- Clear and heat-trace the condensate drain
Coverage Grid
Defrost Failure Across Cape Town
Select your area for a hyper-local diagnostic page with response times and local risk factors.
Cape Town CBD
Central · 16 zones
City CentreGardensOranjezichtTamboerskloof+12
Northern Suburbs
North · 20 zones
BellvilleDurbanvilleParowGoodwood+16
Southern Suburbs
South · 20 zones
ClaremontNewlandsRondeboschWynberg+16
Atlantic Seaboard
West · 15 zones
Camps BayCliftonBantry BaySea Point+11
West Coast
North-West · 19 zones
MilnertonTable ViewBloubergParklands+15
Cape Flats
Central-East · 20 zones
Mitchells PlainKhayelitshaGugulethuNyanga+16
Helderberg
East · 17 zones
Somerset WestStrandGordon's BaySir Lowry's Pass+13
Emergency FAQ
Defrost Failure — Your Questions
Our target response time for defrost failure in Cape Town is 60–120 min. We run a 24/7 emergency desk and dispatch the nearest certified technician with the parts most likely needed for this fault already loaded.