Expert AC Repair in the Greater Seattle Area

Your AC may run but not cool because of a clogged filter, a blocked outdoor condenser, low refrigerant from a leak, incorrect thermostat settings, or dirty coils. Cardinal Heating & Air provides same-day diagnostics and 24/7 emergency service in Seattle and Bellevue. Diagnostic specials are listed at $99–$129, with no service call or dispatch fees.

• Replace or rinse the air filter.
• Set thermostat to “Cool” and 3°F lower.
• Clear debris 2–3 ft around the outdoor unit.
• Check supply/return vents are open.

<br/> Updated: 2025-12-28 00:00:00 <br/>

Need help in Seattle, WA? Call (425) 827-9997 or book online.

If your AC runs but isn’t cooling, it needs a professional diagnostic to confirm the cause. We provide same-day A/C repair diagnostics and 24/7 emergency service in Seattle, plus ductless mini-split checks. A technician will pinpoint the problem on site and review repair options. Annual tune-ups are available with our No-Breakdown Guarantee.

Quick checks:

• Set thermostat to Cool and 3°F lower.
• Replace a dirty air filter.
• Clear debris around the outdoor unit.
• Check the HVAC breaker and open supply vents.

<br/> Updated: 2025-12-28 00:00:00 <br/> Need help in Seattle, WA? Call (425) 827-9997 or book online.

Turn the system off, then check a few basics. If warm air keeps coming back, schedule a same-day diagnostic so a tech can test refrigerant levels and electrical components.

Quick checks:

• Set thermostat to Cool and Fan to Auto.
• Replace a dirty air filter.
• Make sure the outdoor unit is clear and running.
• If you see ice on lines or the coil, keep the system off to thaw.
• Open supply vents and check the breaker.
• For ductless, confirm each head is in Cool.

Same-day and 24/7 emergency service available in Seattle and Bellevue. <br/><br/> Updated: 2025-12-28 00:00:00 <br/><br/> Need help in Seattle, WA? Call (425) 827-9997 or book online.

AC compressor replacement cost is not one-size-fits-all and is confirmed only after an on-site diagnosis and written quote. The biggest cost drivers are the system’s size, the exact compressor your brand requires, refrigerant compatibility, and how much labor is needed to recover refrigerant and swap components. In many cases, we also evaluate the whole system’s condition and warranty status to decide if repair or full unit replacement makes better long-term sense. A seasoned tech will also look for root causes like airflow or contamination, because a new compressor won’t last if the original issue remains. Our team regularly handles these calls across Greater Seattle and often sees this need in Everett homes.

• What affects price: equipment tonnage, brand-specific parts, refrigerant type, and installation complexity.
• Replace vs. repair signals: out-of-warranty compressor, repeated hard-starts, or multiple aging components.
• Next steps: diagnostic, root-cause check, then a firm, line-item quote before work.

Shut the system off if you hear grinding or see tripped breakers to avoid further damage. <br/> Updated: 2026-04-01 <br/> Need help in Everett, WA? Call (425) 827-9997 or book online. “Cardinal has been taking care of my furnace and AC for a number of years. They are easy to communicate with, on time, and do great work.” — Nora Wright