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Heat Pump Repair in Burlingame, CA

Heat pump repair in Burlingame, CA delivers reliable warmth year-round with expert diagnostics and prompt, lasting fixes. Get a quote today

Our heat pump repair services in Burlingame, CA are all about bringing back reliable year-round comfort by expertly diagnosing and fixing issues specific to our coastal environment. We tackle common problems like a lack of heat, poor comfort, short cycling, icing, unusual noises, electrical faults, uneven temperatures, and efficiency losses. We'll then walk you through our step-by-step troubleshooting process, discuss component-level repair options, and give you typical timelines, from same-day fixes to multi-day projects. We also cover warranties, how estimates are factored, and preventive maintenance to extend your system's life and performance in marine air conditions.

Heat Pump Repair in Burlingame, CA

Heat pump repair in Burlingame, CA focuses on restoring reliable, efficient heating and cooling for homes that rely on this all-in-one technology. In Burlingame’s mild, coastal climate, heat pumps often run year-round and face unique stresses: salt-laden marine air that accelerates outdoor coil and electrical corrosion, morning fog and humidity that affect defrost cycles, and energy-efficiency expectations from homeowners pursuing electrification. Proper troubleshooting and targeted repairs keep systems performing efficiently, reduce utility costs, and extend equipment life.

Common heat pump issues in Burlingame and what they mean

  • No heat or no cooling: System runs but delivers little conditioned air. Causes include low refrigerant, compressor failure, reversing valve faults, or airflow restrictions.
  • Short cycling or frequent on/off: Often caused by thermostat errors, faulty capacitors, or an overheating compressor. Short cycling raises wear and reduces efficiency.
  • Icing on outdoor unit or coil: In coastal, humid conditions this can happen when defrost controls fail or when refrigerant levels are low.
  • Strange noises: Grinding, rattling, or loud hums point to failing fan motors, worn bearings, loose components, or failing compressors.
  • Electrical problems: Tripped breakers, burned contactors, or intermittent operation frequently come from corroded connections, failed capacitors, or control board faults.
  • Uneven heating or cooling: Blocked airflow, failing reversing valves, or refrigerant distribution issues can cause hot and cold spots.
  • Reduced efficiency/increased bills: Dirty coils, clogged filters, refrigerant loss, or aging compressors reduce COP and increase runtime.

Heat pump troubleshooting process

A systematic diagnostic approach isolates problems before repair. Typical steps:

  1. Visual inspection: Check outdoor unit for corrosion, debris, coil condition, and electrical panel condition. Inspect indoor blower, filters, and ductwork for obstructions.
  2. Operational verification: Run the system in heat and cool modes to reproduce symptoms and listen for abnormal sounds.
  3. Electrical testing: Measure voltage, current draw, capacitor health, and continuity of safety devices to detect failing electrical components.
  4. Refrigerant and pressure checks: Use manifold gauges to check charge level and identify leaks. Low charge often indicates a leak needing repair.
  5. Component-level testing: Evaluate compressors, fan motors, reversing valves, defrost controls, thermostats, and control boards.
  6. System performance metrics: Measure supply and return temperatures, superheat/subcooling values, and airflow to determine overall functioning.

Component-level repairs explained

  • Compressors
  • Diagnosis: High current draw, noisy operation, or failure to start indicate compressor issues. Compressor replacement is common for seized or electrically failed units.
  • Repair notes: Replacement often requires evacuating refrigerant, matching refrigerant type, and ensuring proper flushing of lines if contaminants are present.
  • Outdoor and indoor fans
  • Diagnosis: Bent blades, worn bearings, or failed start capacitors cause reduced airflow or noise.
  • Repair notes: Fan motor replacement or blade balancing typically restores airflow and quiet operation. Corrosion from coastal air can necessitate more frequent replacements.
  • Reversing valves
  • Diagnosis: System stuck in one mode (heating or cooling) or slow to change modes indicates valve malfunction or valve actuator issues.
  • Repair notes: Valve repair may require partial evacuation and replacement of the valve assembly; testing actuator controls is also critical.
  • Electrical controls, capacitors, and contactors
  • Diagnosis: Intermittent operation, failure to start, or arcing suggests control failures.
  • Repair notes: Replacing capacitors, contactors, or control boards often resolves responsiveness and reliability issues. Protecting connections from salt corrosion is important in Burlingame.
  • Refrigerant leaks and metering devices
  • Diagnosis: Low charge and pressure imbalances or hissing sounds; leaks are more common at joints and outdoor coil fittings.
  • Repair notes: Leak repair, evacuation, and recharging to proper manufacturer specifications restores system performance. In older systems, refrigerant conversion may be necessary if the refrigerant type is phased out.
  • Defrost system and sensors
  • Diagnosis: Persistent icing or excessive defrost cycles point to failed sensors, timers, or control logic.
  • Repair notes: Sensor replacement or control module repair typically corrects defrost behavior.

Expected repair timelines

  • Simple repairs (capacitors, contactors, fan motor replacement, thermostat calibration): Often completed same day or within 1 business day.
  • Moderate repairs (motor replacements, reversing valve replacement, leak patching and recharge): Typically 1–2 days, depending on parts availability.
  • Major repairs (compressor replacement, multiple component failure, refrigerant system overhaul): Can take 2–4 days or longer if hard-to-find parts or refrigeration certification procedures are required.Emergency response options exist for situations that leave a home without heat in cooler months; priority diagnostics and temporary fixes may be applied while parts are sourced.

Parts and labor warranties you can expect

Warranties for heat pump repairs commonly include:

  • Parts warranty: Standard durations range from 90 days to several years depending on the component and manufacturer. Compressor replacements may carry separate manufacturer warranties.
  • Labor warranty: Often offered for a specific period (commonly 30–365 days) covering workmanship on the repair performed.
  • Scope: Warranties typically cover the repaired component and labor required to fix the original failure, but may exclude consequential damage, preexisting conditions, or failures from lack of maintenance.Clarify warranty terms up front so coverage for parts, labor, and potential follow-up visits is transparent.

How repair estimates are determined

Cost estimates depend on several factors:

  • Age and model of the heat pump: Older equipment or discontinued models may need more labor or special parts.
  • Accessibility of components: Tight attic or rooftop installations increase labor time.
  • Refrigerant type and charge: Recovering, disposing, or retrofitting refrigerants adds to complexity.
  • Extent of corrosion or secondary damage: Coastal corrosion can require replacing additional components such as condensate pans or electrical connectors.
  • Urgency and scheduling: Emergency or after-hours response may affect availability and timing.

Estimates should itemize parts, labor hours, and any testing or system commissioning required to verify the repair.

Aftercare and maintenance to prevent repeat issues

  • Seasonal inspection: Check and clean outdoor coils and drain lines before peak heating and cooling seasons to prevent icing and efficiency loss.
  • Protect electrical connections: Apply corrosion inhibitors or protective covers on outdoor unit connections exposed to marine air.
  • Replace filters regularly: Monthly checks and timely replacements preserve airflow and reduce blower motor stress.
  • Keep the area clear: Maintain clearance around the outdoor unit to ensure proper airflow and reduce debris buildup.
  • Monitor performance: Track run times, unusual noises, or change in comfort—early attention prevents larger failures.
  • Consider system upgrades: When multiple major components fail or efficiency drops significantly, weigh repair costs against replacement benefits in energy savings and reliability.

Timely, expert heat pump repair in Burlingame, CA restores comfort, reduces energy waste, and addresses coastal-specific challenges before small problems become major failures. Focusing on accurate diagnostics, component-level fixes, and sensible aftercare preserves system life and performance in the local environment.

testimonials

hear what our satisfied clients have to say

5.0

We found Plum HVAC in 2024 after spending more than 2 months searching and comparing estimates.  The owner Sam gave us a very competitive price for a Mitsubishi mini-split and the installation went off without a hitch.  Our experience was so positive that we later requested their services twice more to also install A/Cs for our 2 other rooms.  Their technician, Jake, led our installations each time and we were very impressed by their professionalism and quality of work. Now 1 year in and we could not be any happier, nor have we encountered any issues with our models.

Jesse Y.

5.0

Sam of Plum HVAC, responded to our Heat Pump installation request promptly and provided a very competitive estimate after an onsite visit. He was very flexible and patient to answer and explain our questions. After we signed the contract, he and his team of 4 worked very hard to deliver and install the whole Heat Pump system on time with good quality. I am particularly impressed by their problem solving skills to overcome different connection challenges for the attic installation. Each day before they started, they covered the floors with protection blankets and cleaned after they were done for the day. They also revised the drainage and electric work per the city inspection guidance. Sam and his team were professional and honest so we highly recommend Plum HVAC to any customers who need HVAC work done for their houses.

Chunshi C.

5.0

We needed to install a mini-split in a backyard unit. Sam and his team helped with this, and they did a fantastic job. Sam visited our place and clearly explained to me what needed to be done, and offered a great price. He scheduled the job for a few days later, and his team performed the job with extraordinary quality. Later, I noticed a minor issue and reached out to them. Sam helped me to fix the issue on a second visit by his team later in the week, providing top-notch customer service. I will work with them in the future for my HVAC jobs, and highly recommend them given their excellent work quality and customer service.

Majid J.

5.0

I reached out to 4 companies for mini split quotes; Plum HVAC pricing came in the lowest. Beyond that, Sam was very knowledgeable and kind during the in home consultation. He offered a quote in person, & stuck by it. They removed our old furnace, and installed a two head mini split in our two story townhouse. The work as you can see is very clean! The guys who installed it were very fun & professional. Sam & his team were communicative the whole way through including the permitting process. They took roughly one full day for install, which was very fast! Including removal & disposal of our old furnace. Natalie was very helpful throughout the Bayren Rebate process & always available for any questions! This system has changed our lives, wish we would have gotten it done sooner! It’s way better than we could have imagined.

Bobby R.

5.0

Plum HVAC exceeded my expectations in every way. Sam and his installer team were not only professional but also incredibly responsible throughout the entire process. They provided top-notch service at a very reasonable price, which is hard to come by these days. I highly recommend Plum HVAC to anyone looking for quality HVAC services. You won't be disappointed!

A Chui

5.0

I recently engaged Plum HVAC to install two mini-split units at my residence, and I'm thrilled with the outcome.Throughout the entire process, from the initial consultation to the project's completion, Plum HVAC showcased professionalism and expertise. The technician, Sam, arrived promptly and conducted a comprehensive assessment of my HVAC system. Sam took the time to thoroughly explain the technicians' tasks, the estimated duration of the project, and provided transparent pricing options.

Romero J.

5.0

Wonderful experience with Plum HVAC on a heat pump installation! I checked several companies, compared their recommendations, timelines, reputations and prices.Sam, the owner, was very professional and has almost 2 decades of experience in HVAC. When I asked dumb questions, he answered most graciously. And when I noted that some companies we queried said we could get away WITHOUT replacing our original ductwork from 1965, he gave us his honest opinion why that wasn't a good idea. (Hubby remembered later that people who worked in our attic adding insulation told us there were lots of duct leaks.)

Marlene S.

5.0

I called 8 different HVAC companies for quotes for a heat pump heating/ac system because I want to save money by switching from a forced air gas furnace to an electric heat pump system which will give me both heating and air conditioning. In addition my old furnace (circa 1991) was way oversized for my home and the air coming out too noisy. The New heat pump system is quieter and more efficient.  Back to the quotes for the system, all the other 7 companies sent a salesperson/advisor to give the quote. Sam, the owner of Plum HVAC came our to give the quote. He was quick with his quote and was very knowledgeable. He didn't try to upsell me on anything and have the lowest quote of them all. His price was 60% less than the highest quote and 15% lower than the next second lowest quote.

Michael C.

5.0

Plum HVAC is an extremely professional, knowledgeable, and an established company to hire. I highly recommend Plum HVAC! Sam and his crew did a wonderful job. Sam worked with my schedule and his crew had completed the job with ease.

Blake

5.0

Sam was one of the most professional business owners I had the chance to meet over the past few years and I'm so happy I trusted him to install our new A/C unit.- He showed up on time- He was transparent (and reasonable) regarding pricing- He offered 2-3 options- His crew did a very clean/thorough jobWhat I loved the most though, was the fact he was very easy to communicate with. I would definitely use him again and recommend him to our neighbors/friends.

Bruno L.

5.0

We recently had a complicated Bryant Evolution dual fuel system with variable speed and zoning installed in our home by Plum HVAC, and we are very pleased! The team also changed the entire crawl space ducting, ensuring a comprehensive upgrade. The price was fair, and the team was always on time and easy to contact. Sam Mousavi, the head of the team, paid great attention to detail and demonstrated a strong understanding of systems. His expertise in HVAC systems and his friendly character made us feel comfortable throughout the process. We highly recommend Plum HVAC for their professionalism and excellent service.

Amirali B.

5.0

I cannot say enough about Plum HVAC, who replaced my aging heater furnace, and in particular Sam. Sam was very highly recommended by my sister, who replaced her furnace and added air conditioning.First, they gave me a good deal for a 2-stage, at the same cost as the lowest bid for a 1-stage. The other bids were dancing around some gas line work made by previous owners.

Kumar S.

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