AC not cooling in Puyallup?

AC Repair in Puyallup, WA

Most AC breakdowns in Puyallup happen on the first hot week of the year, when a system that sat idle for eight months suddenly runs all day. The usual culprits are a failed capacitor, a clogged filter, a frozen coil or low refrigerant from a slow leak.

Home Comfort Alliance repairs central air conditioners, heat pumps and ductless systems across Puyallup and South Hill, with priority service during heat waves.

BBB Accredited Business since 2002NATE-certified techniciansACCA, Air Conditioning Contractors of America memberTrustAnalytica Top 10 HVAC Contractor Redmond 2026TrustAnalytica Top 10 HVAC Contractor Everett 2026TrustAnalytica Top 10 HVAC Contractor Bremerton 2026

Locally-owned since 1977 • Licensed, bonded and insured in Washington (WA Contractor Reg. #HOMECCA785BD) • NATE-certified technicians • Carrier Factory Authorized Dealer

  • Local team based in nearby Sumner
  • HVAC, plumbing and electrical under one roof
  • Upfront pricing before work starts
  • Serving Puget Sound homes since 1977
  • Mon to Fri 8 to 5, emergency service available

Quick checks before you call

Check the thermostat mode and batteries, replace a dirty filter, make sure both breakers (indoor and outdoor) are on, and clear leaves or cottonwood fluff from the outdoor unit. If it still is not cooling, turn it off and call.

  1. Thermostat set to Cool, below room temperature, with fresh batteries.
  2. Filter replaced if it is gray or clogged. A blocked filter is the top cause of frozen coils.
  3. Breakers and disconnect on. The outdoor unit has its own breaker and a disconnect box on the wall.
  4. Outdoor coil clear of leaves, grass clippings and cottonwood seed, which is common near the Puyallup River in early summer.
  5. Ice on the lines? Turn the system off and run only the fan for a few hours to thaw it before calling.

Common AC problems in Puyallup homes

What you noticeCommon causeTypical fix
Outdoor unit hums but the fan does not spinFailed run capacitor or fan motorReplace capacitor or motor, usually same visit
Blowing warm airLow refrigerant from a leak, failed contactor, compressor problemLeak search and repair, then recharge; or electrical repair
Ice on the refrigerant linesDirty filter, low airflow, low chargeRestore airflow, check charge, clean coil
Water leaking indoorsClogged condensate drain or failed pumpClear and flush drain, replace pump
Upstairs is 10°F hotter than downstairsDuct design, weak return, oversized system short cyclingAirflow balancing, return added, or zoning. See fixing uneven cooling
Heat pump will not switch to coolingReversing valve or control issueDiagnose valve and board

Why heat waves break air conditioners

Puyallup ACs are built for 78°F summers and asked to handle 100°F days. That extra load exposes weak capacitors, dirty coils and marginal refrigerant charge all at once.

Puyallup's normal July high is about 78°F (U.S. Climate Data), but the June 2021 heat dome reached 101°F in the city (HistoryLink). On days like that, outdoor units run nonstop with high head pressure. Parts that were borderline fail first, and every HVAC company in Pierce County gets busy at the same time.

The best protection is a spring tune-up. Our Comfort Club maintenance plan includes an annual check of capacitors, coils, charge and drains, plus priority scheduling when a heat wave hits. Learn more about heating and cooling maintenance.

Repair or replace your AC?

RepairConsider replacing
System under 10 to 12 years oldSystem over 12 to 15 years old
Single part failureCompressor failure or a large refrigerant leak
Uses current refrigerantOlder R-22 system, now expensive to recharge
Home cools evenly when it worksYou also want cheaper winter heating

If replacement makes sense, a heat pump adds efficient heating for Puyallup winters and may qualify for PSE rebates: see AC installation in Puyallup and heat pump installation in Puyallup.

AC repair across Puyallup and South Hill

We repair cooling systems in downtown Puyallup, Meeker, North Puyallup, River Walk, Shaw Road, Sunrise and South Hill, plus Sumner, Edgewood, Fife and Orting. Our Sumner office at 1524 45th St E, Suite 102 is a few minutes from downtown. We work on all major brands of central AC, heat pumps and ductless mini-split systems. Also see Puyallup HVAC, plumbing and electrical.

What our AC repair visit includes

Every AC repair visit starts with a full diagnosis, gives you a written price before any work, and ends with the system tested under load.

  1. Listen to what you noticed. When it stopped, what it sounded like, which rooms are hot.
  2. Electrical check. We test the capacitor, contactor, disconnect, breaker and wiring at the outdoor unit and the control board indoors.
  3. Airflow check. Filter, blower, evaporator coil and return path, because low airflow causes many "no cooling" calls.
  4. Refrigerant check. We measure pressures and temperatures. If the charge is low, we look for the leak instead of just topping it off.
  5. Drain check. We clear the condensate line and test any pump so water stays out of your ceiling or floor.
  6. Written price. You approve the repair before we start. Common parts are on the truck.
  7. Test under load. We run the system and measure the temperature drop across the coil.

Heat pump and ductless repair

More Puyallup homes now cool with heat pumps and ductless mini-splits than with traditional air conditioners, and we repair both.

Heat pumps add parts a standard AC does not have: a reversing valve, defrost controls and outdoor sensors. Symptoms like cooling that works but heating that does not, or ice that never clears in winter, point to those parts. Ductless systems have their own common problems: dirty indoor coils and blower wheels, clogged condensate lines that drip down the wall, and communication errors between indoor and outdoor units.

Ductless heads dripping

Usually a clogged drain or a dirty coil. We clean the coil and blower wheel and flush the line.

Error codes

We read the manufacturer codes and test sensors and communication wiring rather than guessing.

Weak airflow

Filters on ductless heads need cleaning every few weeks during heavy use. Dust buildup cuts capacity quickly.

When a repair is not worth it, we explain why and give you replacement options, including AC installation in Puyallup. Winter heating problems? See furnace repair in Puyallup.

Keeping repair costs down

Most expensive AC repairs start as small problems that nobody noticed: a weak capacitor, a slow refrigerant leak or a drain line that is half blocked.

A yearly spring check catches these while they are cheap. If your system is over 10 years old, ask us to measure its refrigerant charge and capacitor readings even if it seems fine. Those two numbers predict most mid-summer failures. Keep the outdoor unit clear, change filters on schedule, and call early if you hear new noises, rather than waiting for the hottest week of the year when every technician in Pierce County is booked.

Get an estimateA comfort advisor will call you to set up your visit.

AC repair FAQs for Puyallup

Why is my AC running but not cooling?

The most common causes are a dirty filter or frozen coil, a failed outdoor fan or capacitor, or low refrigerant from a leak. Turn the system off if you see ice and call for service.

Do you offer emergency AC repair in Puyallup?

We prioritize same-day and next-day service during heat waves, and Comfort Club members get priority scheduling.

How much does AC repair cost?

It depends on the part. Capacitors and contactors are small repairs; refrigerant leaks and compressors are larger. We give a written price before starting.

Is it worth fixing an old R-22 air conditioner?

Usually only for a small repair. R-22 is no longer produced, so recharging an older system is expensive and replacement is often the better value.

How often should I service my AC in Puyallup?

Once a year, ideally in spring before the first heat wave. Change filters every one to three months during heavy use.

Why Puyallup homeowners call Home Comfort Alliance for AC repair

  • Local team: our Sumner office is a few minutes east of downtown Puyallup, so we can reach South Hill and the valley quickly.
  • Upfront pricing: you see the price before we start.
  • Whole-home skills: if the problem is a tripped breaker, a failing circuit or a condensate line that leaks into a wall, our electricians and plumbers can fix that too.
  • Priority for members: Comfort Club members move to the front of the line during heat waves.
  • Serving Puget Sound homes since 1977.

Get your cooling back

Call our Sumner-based team for AC and heat pump repair anywhere in Puyallup.

Call (425) 645-0404

Get an estimate

A Sumner-based comfort advisor will call you to set up your visit.

This field is for validation purposes and should be left unchanged.

Consent Acknowledgement(Required)

By submitting your mobile number, you agree to receive recurring marketing texts from Home Comfort Alliance. Message/data rates may apply. Reply STOP to opt out or HELP for help. Your info won’t be shared or sold except as required by law or in our Privacy Policy.