AC Maintenance in Hermiston, OR
Air conditioners here run from July through August, so June is the time for a tune-up. Tell us about your system, and a licensed contractor who covers Umatilla County will get in touch.
Tell us about the job
It takes about a minute.
Two months of hard running, then months of sitting still
Your air conditioner in Hermiston only earns its keep in July and August, when afternoons average 81°F. The rest of the year it sits idle, and a system that sits is one where a small problem can go unnoticed until the next hot day calls on it.
Umatilla County has also seen 15 hail events and 77 damaging wind events over the past ten years. A dented cabinet or debris pushed into the coil doesn't always show itself right away. A tune-up checks the coil, the refrigerant charge, and the electrical connections before the short cooling season puts them to the test.
- 2 months
- July through August, your air conditioner is on duty
- 81°F
- the average summer afternoon it cools against
- 15 hail events
- in ten years, and hail bends the fins on outdoor coils
- 77 wind events
- in ten years, and wind drives debris into outdoor units
NOAA nClimDiv, 1991–2020 normals
Book your AC tune-up in June, before homes here start needing cooling in July.
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
A tune-up checks the refrigerant charge, cleans the coils, tests the capacitor and tightens the electrical connections.
Oregon requires HVAC contractors to hold a state license.
The license is held by the contractor's business, not issued job by job, so it covers whoever the Construction Contractors Board has on record for that company, tested and licensed before they take on work in Umatilla County or anywhere else in the state. Work under $1,000 falls outside that requirement, so a small job can legally be done without a licensed contractor.
Maintenance on a central air conditioner is usually within that threshold, but the CCB license is still what tells you the business behind the technician has met the state's requirements. If the work involves opening the refrigerant side of the system, whoever does it needs EPA Section 608 certification, a federal requirement that applies no matter the size of the job or the state you're in.
Source: Oregon Legislative Assembly
- What does AC maintenance include?
- A technician checks the refrigerant level, cleans the condenser coil, and tests the capacitor and contactor that start the compressor. They also check the airflow across the indoor coil and confirm the thermostat is calling for cooling correctly. Anyone opening the refrigerant side of the system has to hold EPA Section 608 certification, so this part of the job always goes through a certified tech.
- How often does an air conditioner need maintenance?
- Once a year, before the weather turns hot, is the standard. Here that means getting it done before July, since cooling season only runs through July and August. A yearly check catches a weak capacitor or a low refrigerant charge before it leaves you without cooling on one of the hot afternoons.
- Is AC maintenance worth it?
- Yes, because a system that is not checked can fail on the hottest days, which here means summer afternoons averaging 81°F. Maintenance also catches problems like a failing capacitor before they turn into a breakdown. A contractor can price the specific job for your house, but the check itself is what keeps the system running when you need it most.