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leak-detection-repair

Leak Detection Inspection

Always tested on the EPA 608

Inspect refrigerant systems for leaks per EPA 40 CFR 82.157.

About this skill

Mandatory leak inspection for systems containing more than 50 lbs of refrigerant. Includes visual inspection, electronic leak detection, and leak-rate verification for large systems.

10 total steps
4 critical steps
Time limit: 15 min

What graders are watching for

  • 1
    Mandatory for systems over 50 lbs of refrigerant charge
  • 2
    Electronic detector calibration must match the refrigerant type
  • 3
    Maintain leak inspection records for at least 3 years

Common mistakes (and how to avoid them)

  • !
    Using an uncalibrated detector (false negatives)
  • !
    Skipping the verification of large-system leak rates
  • !
    Not documenting the inspection

Practice this skill step-by-step

The static walkthrough above is the marketing overview. The full step-by-step interactive practice (with critical-step highlighting, per-step "why this matters" rationale, and what graders watch for on each individual step) is unlocked with a subscription.

View pricingTry 10 practice questions

Related leak detection repair skills

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.