Condenser hums, fan still
Classic capacitor. Do not keep resetting it.
A bulge on the capacitor is the photo we show you. That is a documented finding, not a vibe.
Many “dead compressors” are capacitors, contactors, or a breaker that trips on a failing fan motor.
If the search that brought you here was “AC capacitor failure,” start with a test, not a replacement pitch.
We measure start and run current in context. A high LRA on a locked rotor is different from a dirty filter making a blower work harder.
On this call we confirm the symptom you described — condenser hums, fan still — before we open a price book.
You approve any repair after the findings are written down. Diagnostic visits are a flat $69. New installation estimates are free in-home with a load calculation — not a number invented from square footage on Zillow.
Replacing the compressor because amps “look high” without a capacitor test is a five-figure mistake.
A company that skips testing on AC capacitor failure will skip it on the next call too. We would rather lose a job than install the wrong thing.
Related service page on this site: air conditioner repair. The article you are reading is the explanation; that page is how to book the work.
OTTER HVAC is based at 2939 Santos Ln, Walnut Creek. Oakland, Concord, and San Ramon are regular routes, along with the rest of our listed East Bay cities. Hours are 7am–5pm, seven days a week. We do not advertise 24/7 because we do not staff a night shift.
Inland heat (Pleasanton, Livermore, Concord) and marine air (Alameda, Daly City) are different loads. A note written for Oakland is not automatically right for a fog-belt house. We treat them that way.
Category on this guide: Cooling. Primary search phrase: AC capacitor failure.
Call (650) 900-0440 or book online. Tell us the city, the symptom in one sentence, and the brand if you know it. If we have a window today, we will say so. If we do not, we will say that too.
Technicians are EPA 608, OSHA, and NATE certified. Public reviews average 5.0 stars across roughly 146 Google and 151 Yelp reviews. That does not replace a test on your unit.
Related service: Air Conditioner Repair. Book a $69 diagnostic or a free install estimate. Hours: 7:00am–5:00pm, seven days a week. Shop: 2939 Santos Ln, Walnut Creek, CA 94597.
Related: All HVAC guides · Air Conditioner Repair · Pricing and $69 diagnostic · Contact OTTER HVAC
Frequently asked questions
What do you test on a AC capacitor failure visit?
We measure start and run current in context. A high LRA on a locked rotor is different from a dirty filter making a blower work harder. The visit is a flat $69. Repair work starts only after you approve the written findings.
Will you quote AC capacitor failure from a photo?
No. We do not price AC capacitor failure from a driveway photo. $69 diagnostic, then a quote — or a free in-home install estimate if replacement is the honest path.
Do you handle this in Oakland and Concord?
Yes. We run Oakland, Concord, and the rest of our East Bay list from 2939 Santos Ln, Walnut Creek. Hours are 7am–5pm every day — not 24/7. Call (650) 900-0440.
Explore related pages
References and credentials
- U.S. DOE Energy Saver
- EPA Section 608
- EPA Section 608 refrigerant certification
- U.S. Department of Energy — Energy Saver
Authority sources: U.S. DOE Energy Saver · EPA Section 608