Hisense Repair Service

Hisense Defrost System Repairs

A failed Hisense defrost cycle lets ice bridge the evaporator coil, blocking airflow until both zones warm up. We repair the heater, defrost timer (or control board), bimetal thermostat and sensors that make the cycle work.

Common symptoms

  • Ice build-up on back wall
  • Excessive frost
  • Fridge warms then recovers
  • Water leaking inside
  • Compressor runs non-stop

Typical causes

  • Defrost heater open circuit
  • Bimetal thermostat stuck open
  • Defrost timer or control board fault
  • Defrost sensor out of calibration
  • Drain line frozen over

How we repair it

  1. 1

    Heater element continuity test

  2. 2

    Bimetal & sensor calibration check

  3. 3

    Timer/board defrost cycle test

  4. 4

    Drain-line clear & flush

  5. 5

    Frost-free recovery verification

Related faults

Related repairs

Ready to book this repair?

Get a certified Hisense technician to your East Rand address. Same-day call-outs available.