If your home runs an AC in summer and a furnace or heat pump in winter, one annual tune-up means one of those systems is going a full year, sometimes longer, without ever being checked. Here’s why spring and fall visits check different things.
If you’re only booking one visit a year, you’re leaving one whole system unchecked. See how our AC, furnace, and heat pump services cover both seasons.
Spring: Preparing the Cooling Side
- Refrigerant level check. Low refrigerant reduces cooling capacity and efficiency — better to catch a slow leak in spring than discover it during the first heat wave.
- Coil and condenser cleaning. A winter’s worth of dust and debris on the outdoor unit affects how efficiently it can reject heat once cooling season starts.
- Electrical component check. Capacitors and contactors wear out at unpredictable times — testing them before peak season use catches failures before they leave you without AC in July.
- Condensate drain clearing. A line that’s been sitting unused over winter is a common place for a summer clog to start.
Fall: Preparing the Heating Side
- Heat exchanger inspection (furnaces). Checking for cracks or corrosion before the system runs constantly through winter is a safety check, not just a performance one.
- Ignition and flame sensor check. These components sit unused all summer and can degrade or accumulate dust in that time.
- Defrost cycle testing (heat pumps). Confirming the defrost control is working correctly before the first cold, humid nights of the season.
- Carbon monoxide safety check (gas systems). An annual check most homeowners don’t think to ask for, but one of the most important.
The Bottom Line
A single tune-up, done once, inevitably favors whichever system happens to be in season at the time — leaving the other one unchecked for potentially 18 months or more between visits.