Nov '25 • HVAC Tip of the Day
HVAC Tip of the Day: The #1 Mistake Techs Make
Most HVAC breakdowns don’t happen because the system “just failed.”
They happen because techs jump straight to refrigerant before checking the two things that matter most:
✔ Electrical Health
✔ Airflow Performance
Here’s the rule elite technicians follow:
Never put gauges on a system until you know the electrical and airflow are perfect.
Why? Because:
- Weak capacitors give false refrigerant readings
- Undersized return air makes a system look low
- Failing blower motors distort superheat & subcool
- Bad wiring causes pressure symptoms that mimic leaks
- Poor airflow ruins refrigerant balance before you even touch your gauges
Refrigerant is the LAST step — never the first.
Elite techs follow the right sequence:
1️⃣ Fan switch to “On” → Confirm power2️⃣ Check return air → 144 sq in per ton3️⃣ Verify electrical → capacitors, wiring, connections4️⃣ THEN check refrigerant
Do it in this order, and you’ll:
- Reduce callbacks
- Diagnose faster
- Look like an expert
- Earn homeowner trust
- Make more money
- Protect compressors and motors before they fail
Do it the right way. Every time. Transparent Air 14.
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HVAC Tip of the Day: The #1 Mistake Techs Make
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