Lennox Heat Pump Service Nationwide | Dalton Heating & Air Fort Lauderdale

Lennox Heat Pump Service: The Fort Lauderdale Owner’s Guide

Lennox heat pump service in Fort Lauderdale typically runs $150 – $650 depending on the failed part, with most repairs completed same-day or next-day. We stock common Lennox components on our trucks and source OEM parts from local supply houses in Broward County, usually within 24 hours for less common items. The price you’re quoted is the price you pay, in writing, before we open a single panel.

Call (754) 354-6972

Most Fort Lauderdale homeowners discover a heat pump failure the same way: the thermostat calls for cooling on a 90-degree afternoon and the outdoor unit either won’t start, runs but won’t cool, or makes a sound that wasn’t there last week. Lennox units are generally well-built, but salt air, relentless humidity, and year-round runtime put stress on specific components that fail in predictable order. We see it every week from Victoria Park to Coral Ridge.

Which Lennox Models This Applies To

We service every residential Lennox heat pump line installed in Fort Lauderdale over the last 20 years, including the Merit, Elite, and Signature series. That covers workhorses like the XP14, XP16, XP20, XP21, and XP25, plus the older 13-SEER units still running in homes near Middle River Terrace and Sailboat Bend. If you have a Lennox model number printed on the data plate of the outdoor unit, we can match the exact part before we arrive.

One compatibility issue we run into often: Lennox Signature series units use communicating controls that require proprietary thermostats and boards. The Merit and Elite lines are far more forgiving with generic thermostats and standard 24-volt controls. That matters when a board fails. A generic replacement board from a discount supplier may power the unit but won’t talk to a Lennox iComfort thermostat correctly. We use OEM Lennox parts when compatibility is critical, and quality aftermarket equivalents only when they meet or exceed spec on straightforward components like capacitors and contactors.

Dalton Heating & Air Fort Lauderdale is an independent service provider. We’re not affiliated with Lennox, but our technicians are factory-trained on Lennox equipment and we install parts every week that fit and function correctly the first time.

Signs Your Lennox Heat Pump Service Is Failing

• The outdoor unit hums but won’t start. This is usually a capacitor, the little cylinder that gives the compressor and fan the voltage kick they need to spin up. Lennox capacitors in Fort Lauderdale’s heat and humidity last 5 – 8 years before they swell and fail.
• The unit short cycles, starting and stopping every few minutes. Often a failing contactor or a refrigerant pressure switch doing its job. The switch shuts down the compressor to protect it from damage when refrigerant levels drop out of spec.
• It runs, but the air from the vents isn’t cool. That points to a reversing valve issue, a refrigerant leak, or a compressor that’s lost efficiency. Lennox reversing valves on older 10-SEER and 13-SEER models are a common failure point in coastal Florida because the valve body sits exposed to salt air.
• Your defrost board is confused. Heat pumps in Fort Lauderdale rarely need defrost, but they still have the board. When it fails, the unit can get stuck in defrost mode or lock out entirely. This is a part we replace regularly on Lennox equipment near the beach.
• The indoor blower runs constantly but the outdoor unit is silent. Usually a failed dual-run capacitor or a tripped high-pressure switch. If it’s the switch, there’s a reason it tripped – and that reason needs to be found before we reset anything.

Replacement Cost & What’s Included

Here’s what Lennox heat pump parts cost installed in Fort Lauderdale right now:

• Capacitor replacement: $150 – $280, including the part and labor.
• Contactor replacement: $180 – $320.
• Defrost board replacement: $280 – $500, depending on whether it’s a standard or communicating board.
• Reversing valve replacement: $450 – $650. This is a brazed refrigerant-line component, so it requires recovering refrigerant, brazing the new valve in, pulling a vacuum, and recharging – not a parts-only swap.
• Compressor replacement: $1,800 – $3,200 when it makes sense versus replacing the whole unit. We’ll tell you honestly when it doesn’t.

Every quote includes the part, the labor, the refrigerant if needed, and the written guarantee. If the repair fails within a full year, we come back and fix it at no charge. That’s the 365-Day Done Right Promise, and it’s included on every Lennox repair we do in Fort Lauderdale. The price you see in writing before we start is the price you pay when the job is done. No trip-charge surprises, no upsell at the door.

DIY or Call Us?

Let’s be direct: anything involving the compressor, reversing valve, or refrigerant lines is not a homeowner job. Lennox heat pumps run on 240 volts and hold refrigerant under pressure. The high-tension electrical and pressurized refrigerant are dangerous enough that we won’t give you a parts list and wish you luck. A mis-wired capacitor or a bad braze on a reversing valve turns a $300 repair into a $3,000 replacement.

What you can do safely: check the thermostat batteries, check the breakers at the panel and the disconnect box next to the outdoor unit, and make sure the condensate drain line isn’t clogged and tripping a float switch. If all of that is fine and the unit still won’t run, the problem is almost always in the electrical controls or the refrigerant circuit, and that’s when you call (754) 354-6972. Marco Benitez and his team diagnose the problem, show you the failed part, and put the price in writing before work begins.

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