ASE A7 Heating & A/C practice test
The A7 test leans hard on gauge-reading interpretation — what high and low side pressures together say about charge, airflow, and the expansion device — plus refrigerant handling rules and climate-control electronics.
On a hybrid with a high-voltage electric A/C compressor, why is using the specified POE oil (instead of ordinary PAG) critical?
How the A7 test works
50 scored questions
+ ~10 unscored research questions
75 minutes
computer-based, at a test center
$62 per test
plus one $34 registration fee per order
Valid 5 years
then a shorter recertification test
ASE does not publish one universal passing percentage; the passing standard is set by test. TorquePrep uses 80% as a conservative practice target, not as an official ASE cut score. The certificate is issued once ASE verifies your required work experience.
What the A7 test covers
The official task list for A7 Heating & Air Conditioning breaks down into these content areas — the practice bank above draws from all of them:
- A/C diagnosis — high/low-side gauge interpretation, poor cooling, and noise
- Refrigeration components — compressor, condenser, evaporator, TXV vs orifice tube, drier vs accumulator
- Heating and engine cooling — heater core, blend doors, and thermostat
- Operating systems and controls — blower circuits, automatic climate control, and actuators
- Refrigerant recovery, recycling, and handling — R-134a and R-1234yf
Frequently asked
- How many questions are on the ASE A7 test?
- The A7 test has 50 scored questions plus about 10 unscored research questions, with a 75-minute time limit.
- Is EPA Section 609 the same as ASE A7?
- No — Section 609 is the separate EPA credential required to buy refrigerant and service mobile A/C systems. A7 is the ASE competency certification; many technicians hold both.
- What should I drill hardest for A7?
- Pressure-gauge scenarios. Being able to read “both low”, “high high-side”, or “low side in vacuum” straight to a cause answers a large share of the test.
Exam length, timing, fees, and content areas checked September 11, 2026 against the official ASE test table and ASE study guides.