AMAPPLIANCE MASTERSACADEMY

COURSE 04 · COMPLETE COURSE PACKAGE

Refrigerators & Freezers

Refrigerators & Freezers course book cover

Essential refrigeration knowledge for the calls where temperature, timing and diagnosis matter.

Understand cooling, airflow, defrost, sensing, ice and water systems. Build advanced fault-isolation skills before sealed-system intervention.

For aspiring technicians and experienced professionals.

Invest in your skills. Build a stronger future in appliance repair.

Course book

241 pages, 60 chapters and 24 worked cases. 20 guides for testing components.

Video references

6 supplemental third-party references with viewing tasks.

Quizzes & workbook

180 explained assessment questions, 6 additional component exercises, a 104-page workbook and 10 printable field forms.

Diagnostic support

12 months after completion; response within 24 hours.

$999 USD

One course purchase includes the course book, workbook, supplemental video references, quizzes and 12 months of diagnostic email support after completion.

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60 course chapters

Part 1: Foundations

  1. Safe refrigerator service
  2. Model, refrigerant and system identity
  3. Heat, temperature and humidity
  4. How the refrigeration cycle moves heat
  5. How cold reaches the compartments
  6. Temperature tools and useful logs

Part 2: Working cycles

  1. Cooling demand and setpoints
  2. What allows the compressor to run
  3. Evaporator and condenser airflow
  4. A complete automatic-defrost sequence
  5. Defrost termination and recovery
  6. Water fill, ice freezing and harvest

Part 3: Cabinet and installation

  1. Ambient conditions and condenser clearance
  2. Gaskets, hinges, doors and mullions
  3. French-door systems
  4. Side-by-side systems
  5. Top- and bottom-freezer arrangements
  6. Chest, upright and static freezers

Part 4: Airflow and distribution

  1. Evaporator fans
  2. Condenser fans
  3. Dampers and ducts
  4. Dual-evaporator operation
  5. Frost that blocks airflow
  6. Load placement and return air

Part 5: Defrost systems

  1. Defrost heaters and their circuits
  2. Thermistors, thermostats and cold-state checks
  3. Timers and adaptive defrost controls
  4. Defrost drains
  5. What an evaporator pattern can tell you
  6. Recurring ice and moisture

Part 6: Electrical diagnosis

  1. Supply, load paths and control power
  2. Compressor windings, starting devices and capacitors
  3. Variable-speed compressor drives
  4. Compressor request and drive response
  5. Sensors and communication
  6. Harness faults that depend on movement

Part 7: Ice and water

  1. Water valves, filters and supply
  2. Ice-maker components and sequence
  3. Ice fill and local freezing
  4. Augers, crushers and dispenser doors
  5. Door switches, optics and moving wiring
  6. Leaks and frozen water lines

Part 8: Complaint diagnosis

  1. Warm compartments
  2. Freezing food or overcooling
  3. Noisy refrigerator operation
  4. Long compressor run times
  5. Condensation and water on the floor
  6. Ice and dispenser diagnosis

Part 9: Sealed-system triage

  1. Checks before a sealed-system diagnosis
  2. Limited evaporator activity
  3. Compressor sound, current and cooling
  4. Low charge versus restriction
  5. What external checks cannot establish
  6. Moving into sealed-system work

Part 10: Advanced field assessment

  1. Worked intermittent-cooling case
  2. Worked dual-evaporator case
  3. Worked defrost-versus-refrigerant case
  4. Temperature verification after repair
  5. Explain the cooling diagnosis
  6. Practice a complete refrigeration diagnosis

This course teaches refrigeration operation and non-invasive sealed-system diagnosis. Full refrigerant intervention and sealed-system repair are taught in the separate sealed-system course.

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