A welded contactor
Outdoor unit that never shuts off.
If the condenser runs with the thermostat off, kill the disconnect. That is a welded contactor until proven otherwise.
Many “dead compressors” are capacitors, contactors, or a breaker that trips on a failing fan motor.
If the search that brought you here was “welded AC contactor,” 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 — a welded contactor — 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 welded AC contactor 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. Alameda, Alameda, and Pleasant Hill 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 Alameda is not automatically right for a fog-belt house. We treat them that way.
Category on this guide: Cooling. Primary search phrase: welded AC contactor.
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 welded AC contactor 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 welded AC contactor from a photo?
No. We do not price welded AC contactor 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 Alameda and Alameda?
Yes. We run Alameda, Alameda, 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