Heat Pump Services

Heat Pump Repair & Service

When your heat pump quits on you, it's a real problem, whether it’s failing to heat on a chilly morning or can't cool your home on a warm San Diego afternoon. Common symptoms include lukewarm air, rattling or screeching noises you can hear from inside, or an outdoor unit that has completely iced over. It’s not in your head—these are symptoms of a system in distress, and they won't fix themselves.

A heat pump is a complex piece of equipment, and a lot can go wrong. Refrigerant leaks are common, especially on older units, and starve the system of its ability to move heat. The reversing valve—the component that switches between heating and cooling—is another common failure point that can leave you stuck in the wrong season. Sometimes, the issue is electrical, like a bad capacitor that won't let the compressor or fan motor start, or a fried control board.

Common Causes of Heat Pump Failure

We trace most breakdowns back to a handful of core issues. Our job is to find the real source of the problem, not just treat the symptom.

What we look for first:

• Low Refrigerant: Usually due to a leak, this is a common cause of poor performance.
• Faulty Reversing Valve: The component is either stuck or has failed electronically.
• Bad Capacitors or Contactors: These electrical parts wear out and prevent motors from running.
• Compressor Failure: This is the heart of your system, and a major repair. When this goes, you have to weigh the cost against a full Heat Pump Installation & Replacement.
• Clogged Filters & Dirty Coils: Restricts airflow and makes the system work dangerously hard.
• Thermostat Malfunctions: The "brain" is giving the wrong signals to the "body."

Ignoring these signs almost always leads to a bigger, more expensive failure. Our NATE-certified technicians run a full diagnostic to find the root cause, so you get a repair that actually lasts. We'll get your system running right, whether it's a simple fix or a complex component replacement.

When you need a technician who can accurately diagnose and fix the issue, check out our Heat Pump Repair & Service coverage across San Diego County.

Heat Pump Installation & Replacement

Deciding to replace your heat pump is a big call, but sometimes it’s the smartest one you can make. If your unit is over 10-15 years old, needs constant repairs, or still uses the old R-22 refrigerant that’s now incredibly expensive, sinking more money into it is often a losing battle. A system that can’t keep the house comfortable anymore or runs up huge energy bills is telling you it's time to consider an upgrade.

A proper installation is more than just swapping boxes; it's about setting up your home's comfort for the next decade or more. The most critical step is getting the size right. We perform a Manual J load calculation that looks at your home’s square footage, insulation, windows, and layout. Guessing or installing the same size as the old unit is a recipe for high bills and poor comfort. An oversized unit will short-cycle, failing to dehumidify properly, while an undersized one will run constantly and never keep up.

We’ll walk you through modern options with high SEER2 and HSPF2 ratings, explaining the real-world benefits of variable-speed compressors and smart thermostats. The installation itself is meticulous. We ensure the new indoor and outdoor units are placed correctly, the refrigerant lines are flawlessly brazed, and the entire system is commissioned and tested to meet manufacturer specifications. A quality installation is the foundation of a reliable system, and it’s where we refuse to cut corners. Investing in a new system is also the perfect time to plan for its longevity with a regular Heat Pump Maintenance & Tune-Up plan.

To see how we approach system upgrades and new installs, explore our Heat Pump Installation & Replacement services for San Diego County homeowners.

Heat Pump Maintenance & Tune-Up

The single best way to avoid emergency repair calls is with proactive maintenance. A heat pump works hard all year long in San Diego County, switching between heating and cooling, and that wear and tear adds up. Skipping an annual tune-up is like never changing the oil in your car—the system might seem fine for a while, but efficiency drops, parts wear out faster, and you're setting yourself up for a catastrophic failure.

A professional tune-up isn't just a quick filter change. Our technicians perform a comprehensive inspection and cleaning to restore your system to factory specifications. We clean the indoor and outdoor coils, which get caked with dirt and debris, restricting airflow and heat exchange. We check and tighten every electrical connection, because loose wires are a fire hazard and cause components to fail. We lubricate motors, check refrigerant levels, and clear the condensate drain to prevent water damage.

What Our Tune-Up Includes:

• Thorough cleaning of indoor and outdoor coils
• Inspection and tightening of all electrical components
• Lubrication of all moving parts, including fan motors
• Refrigerant level and pressure check
• Condensate drain line cleaning and inspection
• Thermostat calibration and testing
• Air filter inspection and replacement (if you have one on hand)
• Full system operational test in both heating and cooling modes

This preventative service catches small issues before they become major breakdowns, keeps your energy bills low, and extends the life of your equipment. If we find a worn part during the visit, we can often address it on the spot, saving you from a future no-heat or no-cool emergency that requires a full Heat Pump Repair & Service call.

Lock in proactive care and protect your investment with our Heat Pump Maintenance & Tune-Up program.

Our Approach to Heat Pump Service

Since 1990, John Stevenson Plumbing, Heating & Air Conditioning has operated on a simple principle: do the job right and treat people fairly. When our NATE-certified technician arrives at your home, they come prepared to solve the problem, not to sell you something you don't need. We start with a thorough diagnostic to understand exactly what’s wrong with your heat pump.

Once we’ve identified the issue, we explain the problem and your options in plain English. You’ll get a clear, upfront price before any work begins, so you can make a decision without pressure or surprises. Our team respects your home, using drop cloths and shoe covers to keep things clean, and we don't leave until the job is done and you're satisfied. We back all our work with a 5-Star Service Guarantee because our family’s name is on every job we do across San Diego County.

Related Services

Your heat pump is central to your home’s comfort, but it works as part of a larger system. If you have rooms that are always too hot or too cold, a Ductless System can provide zoned heating and cooling to solve those stubborn comfort issues.

The air your heat pump circulates has a major impact on your well-being. If you're concerned about dust, allergens, or stale air, our Indoor Air Quality solutions can work with your system to make your home’s air cleaner and healthier. And to reduce the strain on your system during warm weather, improving your Attic Ventilation can lower the heat load on your home, helping your heat pump run more efficiently and last longer.

Get Your Home Comfortable Again

You shouldn't have to put up with a heat pump that's noisy, unreliable, or expensive to run. Whether you're facing an urgent breakdown, thinking about a high-efficiency upgrade, or want to keep your current system in peak condition, our team has the experience to get it done right.

For honest advice and expert service from a local, family-owned company you can trust, reach out to John Stevenson Plumbing, Heating & Air Conditioning today.