The full tune-up checklist
This is the actual checklist behind every Canyon Comfort System Health Report — every item below gets measured or verified and written down, not eyeballed.
What gets checked and measured
- Temperature split (°F) — the difference between the air going in and the air coming out, which tells you whether it's actually heating or cooling to spec.
- Static pressure — supply and return sides (in. WC) — measured separately on each side, so a restriction shows up where it actually is.
- Airflow (CFM) — the actual volume of air the system is moving, not just a guess based on how it sounds.
- Filter — direction, cleanliness & remaining life (%) — checked and corrected if it's backwards or overdue.
- Blower motor shaft play & amps — bearing wear and amp draw, both early predictors of a motor on its way out.
- CO (carbon monoxide) safety test (ppm) — measured at the furnace to confirm it's burning clean and safe.
- Gas manifold pressure (in. WC) — confirms the furnace is burning at the rate it was designed for.
- Furnace amps — total draw into the unit, checked against spec.
- Ignitor resistance (Ω) — a weak ignitor reads out of range long before it dies on a cold night.
- Flame sensor & flame operation — sensor condition and resistance, plus burners inspected for proper, stable flame.
- Exhaust / inducer fan amps — to catch a draft inducer motor on its way out.
- Secondary heat exchanger — buildup & heat stress — a borescope camera look inside, the only way to actually see it instead of guessing.
- Air leakage out of the furnace — cabinet and duct connections checked so the air you paid for isn't escaping.
- A/C coil — dirt buildup (%) — inspected by camera; a dirty coil chokes airflow and cooling capacity.
- Filter drier temperature change (°F) & TXV operation — early warnings of a restriction in the refrigerant circuit.
- Outdoor unit voltage — confirms the equipment is getting clean, correct power.
- Compressor & condenser fan amps — each measured against the nameplate rating.
- Both capacitors — compressor and fan (µF) — each tested against its rated microfarads, not just "does it start."
- Condenser cleanliness — coil fins need to be clear of dirt and debris to reject heat properly.
- Thermostat operation — confirmed it's actually controlling the system the way it should.
- A/C drain & condensate pump operation — tested under real operation, so a clog doesn't turn into water damage mid-summer.
- Equipment slope — A/C and furnace verified level or sloped correctly, so condensate drains the way it was designed to.
- Any water leaking — checked and flagged before it becomes a stain on the ceiling.
- Anything else worth noting — any other concern we spot goes in the report, even if it's outside the checklist.
On refrigerant: superheat, subcooling, and pressures get measured when the readings above point to a problem — we don't hook up gauges "just in case" on every visit, because that habit slowly bleeds refrigerant from a healthy system.
Why this matters
Most of what determines whether a tune-up actually extends the life of your system, or is just a quick filter change with an invoice attached, comes down to whether these numbers get measured at all. A capacitor that "looks fine" can still be reading well under its rating. A secondary heat exchanger caked with dirt won't show up unless someone actually looks with a camera. Ask what was measured, and ask to see the numbers — a tech who's actually doing the work will have them.
See real numbers on your next visit
Every Canyon Comfort tune-up comes with a System Health Report — the actual readings, not just “looks good.”
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