EPA 608 Hub
EPA 608 Clinical Skills
Every clinical skill tested on the National Healthcareer Association EPA 608 exam blueprint. Each skill ships with the step list, the critical steps (the ones the grader is watching), and the common mistakes candidates make on the walkthrough.
These 13 skills appear on virtually every EPA 608 exam form. Walk through them first when you start studying — they're worth the most points and the test makers can't make the exam without them.
equipment service
System Evacuation (Vacuum Pump)
Pull a deep vacuum before charging a new or opened system.
Dehydration of Wet Systems
Remove moisture from a system contaminated with water.
Charging by Weight (Cylinder Method)
Charge a system with refrigerant using the cylinder-and-scale method.
Major Component Replacement
Replace a compressor, coil, metering device, or reversing valve.
leak detection repair
Leak Detection Inspection
Inspect refrigerant systems for leaks per EPA 40 CFR 82.157.
Electronic Leak Detection
Use a calibrated electronic leak detector to find small leaks.
Bubble Method Leak Detection
Use soap-and-water to find medium and large refrigerant leaks.
Leak Repair Verification
Verify a leak repair before returning the system to service.
recovery recycling
Recovery from Low-Pressure Appliances
Recover refrigerant from low-pressure systems (chillers, R-11, R-113).
Recovery from High-Pressure Appliances
Recover refrigerant from high-pressure systems (R-22, R-410A, R-134a).
On-Site Recycling of Recovered Refrigerant
Recycle recovered refrigerant through an ARI-740 certified machine.
refrigerant regulations
Refrigerant Recovery from Stationary Equipment
Recover refrigerant from stationary equipment to EPA-required thresholds before opening the system.
Refrigerant Handling and Identification
Identify, handle, and transport refrigerants per AHRI Guideline N and 40 CFR Part 82.
safety handling
Personal Protective Equipment for Refrigerant Work
Wear the correct PPE for refrigerant work and confined spaces.
Refrigerant Cylinder Handling and Transport
Handle and transport refrigerant cylinders safely.
Refrigerant Identification
Identify unknown refrigerants before service or recharge.