Air Conditioning Cleaning Training

Lesson 1 • Core Components and Their Functions

Examines evaporator coils, condenser coils, compressors, fans, and drain pans. Understanding each part's role directs targeted cleaning efforts.

Lesson 2 • Airflow Pathways and Ductwork

Maps supply and return airflow routes through ducts, plenums, and registers. Correct airflow mapping ensures complete cleaning coverage.

Lesson 3 • Types of AC Systems Overview

Covers split, central, window, and portable AC categories and their configurations. Establishes system identification skills needed for all subsequent cleaning procedures.

Lesson 4 • Refrigerant Cycle Basics

Explains the compression, condensation, expansion, and evaporation cycle. Technicians use this knowledge to recognise contamination effects on system efficiency.

Lesson 1 • Electrical Safety Fundamentals

Covers lockout/tagout procedures, voltage verification, and safe de-energisation steps. Electrical safety is the prerequisite for every hands-on cleaning activity.

Lesson 2 • Biological and Mold Hazards

Addresses mold spores, bacteria, and Legionella risks present in contaminated AC systems. Early hazard recognition triggers correct containment and remediation protocols.

Lesson 3 • Personal Protective Equipment Selection

Specifies correct PPE for each cleaning scenario including respiratory, eye, and skin protection. Matching PPE to hazard type is mandatory before work begins.

Lesson 4 • Chemical Hazard Management

Identifies hazardous cleaning agents, refrigerants, and biocides with their exposure risks. Proper handling prevents chemical burns, inhalation injury, and environmental release.

Lesson 1 • Vacuum and Air Duct Cleaning Equipment

Details HEPA vacuums, rotary brush systems, and negative-air machines for duct cleaning. Equipment selection depends on duct material, diameter, and contamination level.

Lesson 2 • Hand Tools for AC Cleaning

Covers brushes, fin combs, scrapers, and inspection mirrors used in manual cleaning tasks. Correct tool selection prevents coil fin damage and surface scratching.

Lesson 3 • Pressure Washing and Fogging Equipment

Explains low-pressure washers, fogging machines, and spray applicators for coil and duct cleaning. Pressure calibration protects delicate fins while achieving deep contamination removal.

Lesson 4 • Equipment Maintenance and Storage

Establishes cleaning, inspection, and storage routines for all tools and machines. Well-maintained equipment ensures consistent performance and extends service life.

Lesson 1 • Disposable Filter Replacement Procedure

Covers safe removal, disposal, and correct installation of disposable filters. Proper airflow-direction alignment is critical to filtration performance.

Lesson 2 • Washable Filter Cleaning Procedure

Details rinsing, drying, and reinstallation steps for reusable electrostatic and foam filters. Correct drying prevents mold growth before reinstallation.

Lesson 3 • Filter Types and Efficiency Ratings

Distinguishes fibreglass, pleated, electrostatic, and HEPA filters by efficiency rating and application. Rating knowledge guides correct replacement selection.

Lesson 4 • Filter Inspection and Condition Assessment

Teaches visual and pressure-drop methods to assess filter loading and damage. Accurate assessment determines whether cleaning or replacement is required.

Lesson 1 • Evaporator Coil Inspection

Identifies fouling patterns, fin damage, ice formation, and microbial growth on evaporator coils. Thorough inspection determines the correct cleaning method and chemical choice.

Lesson 2 • Drain Pan and Condensate Line Cleaning

Covers manual scrubbing, flushing, and biocide treatment of drain pans and condensate lines. Clean drainage prevents water overflow, mold growth, and indoor air quality issues.

Lesson 3 • Rinse-Based Coil Cleaning Method

Details chemical application, dwell time, and low-pressure rinsing for heavily fouled coils. Controlled rinsing removes loosened debris without fin distortion.

Lesson 4 • Post-Cleaning Performance Verification

Uses temperature differential and airflow measurements to confirm restored coil performance. Verification data is recorded and compared against manufacturer benchmarks.

Lesson 1 • Outdoor Unit Inspection Procedures

Assesses fin blockage, debris accumulation, fan blade condition, and refrigerant line insulation. Systematic inspection identifies all cleaning and repair needs before work begins.

Lesson 2 • Cabinet and Base Pan Cleaning

Covers debris removal from the cabinet interior, base pan, and drain ports of outdoor units. A clean base pan prevents corrosion and standing water that harbours pests.

Lesson 3 • Condenser Coil Cleaning Techniques

Applies inside-out rinsing and chemical treatment to remove dirt, pollen, and cottonwood debris. Inside-out rinsing dislodges embedded particles without compacting them deeper.

Lesson 4 • Fan Blade and Motor Cleaning

Details safe blade removal, degreasing, and motor housing cleaning for condenser fan assemblies. Clean fan blades restore rated airflow and reduce motor amperage draw.

Lesson 1 • Mechanical Agitation and Vacuuming

Applies rotary brushes, air whips, and skipper balls to dislodge debris while negative-air machines capture it. Coordinated agitation and extraction prevents cross-contamination.

Lesson 2 • Access Point Creation and Sealing

Covers cutting, sizing, and sealing access holes in sheet metal, flex, and fibreglass ducts. Properly sealed access points restore duct integrity after cleaning.

Lesson 3 • Duct Sanitising and Deodorising

Applies EPA-registered sanitisers and encapsulants to cleaned duct surfaces to control microbial regrowth. Sanitiser selection depends on duct material and occupant sensitivity.

Lesson 4 • Post-Cleaning Verification and Reporting

Conducts visual, video, and particle-count verification to confirm cleaning effectiveness. A complete written report documents before-and-after conditions for the client.

Lesson 1 • In-Process Quality Control

Establishes checkpoints during cleaning to verify technique, chemical dwell times, and equipment settings. Mid-job verification catches errors before they affect final outcomes.

Lesson 2 • Client Communication and Handover

Guides technicians through verbal summaries, maintenance advice, and next-service scheduling with clients. Effective handover increases client retention and referral rates.

Lesson 3 • Service Report Writing

Structures clear, accurate service reports including findings, actions taken, and recommendations. Professional reports build client trust and support warranty or insurance claims.

Lesson 4 • Pre-Service Inspection Checklists

Standardises pre-job walkthroughs using structured checklists to capture system condition and client concerns. Checklists prevent missed components and establish a liability baseline.