AC tune-up and maintenance in Stockton
A tune-up is a yearly check of the system before the hot months. This Old House puts it at $65 to $200, with a $133 average. In Stockton, book it for April or May, before the 95 degree days start around May 22.
What a technician should check
ENERGY STAR's maintenance checklist covers most of it:
- Clean the outdoor coil and check the refrigerant charge.
- Tighten electrical connections and measure the voltage and current on the motors.
- Lubricate moving parts where needed.
- Check the condensate drain so it doesn't back up into the house.
- Check the thermostat's settings, and that the system starts and shuts off properly.
- Inspect the indoor coil and the blower. Replace the filter.
Ask the technician to test the capacitor too. A weak one is cheap to replace in May and a lot less convenient in July.
Why spring, here
Over 2016-2025 the first 95°F day at the airport came around May 22 on average, and the first 100°F day around June 2. Summer is also dry: almost none of the year's 13.43 inches of rain falls in June or the three months after it, so dust and pollen build up on the outdoor coil all season. A clean coil before the heat starts is the single most useful thing a tune-up does.
Average days at 95°F or hotter, by month
What you can do yourself
- Change the filter every one to three months in summer, more often if you have pets or nearby fields.
- Keep plants and fences about two feet back from the outdoor unit.
- Rinse the outdoor coil gently with a garden hose, with the power off at the disconnect. No pressure washer.
- Pour a cup of white vinegar down the condensate drain line in spring if your system has an access port.
Questions Stockton homeowners ask
How much is an AC tune-up?
This Old House lists AC tune-ups at $65 to $200, with a $133 average. Some companies sell yearly maintenance plans that include one.
How often should I service my AC in Stockton?
Once a year, in spring. The summer is long and dry here, so the outdoor coil gets dirty fast.