Furnace & heating
AC repair
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TraneSeasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Get your free estimateWhy Miami Homeowners Choose Trane HVAC
Trane in Miami is what we do most weeks, and here’s the short version: Dalton Heating & Air Miami is an independent Trane service provider, not a dealer, which means we fix what’s actually broken instead of pushing a replacement. We work on Trane XV20i, XR14, XL18i, and RunTru systems across every Miami neighborhood, with written pricing before we touch anything and a full-year written guarantee on every repair. Call (850) 754-6042 and you’ll get a live person, not a queue.
Miami’s humidity and salt air chew through HVAC equipment faster than almost anywhere else in the country. Trane builds solid equipment, but even the best aluminum spine-fin coils develop pinhole leaks after seven to ten years of coastal exposure. We see those failures weekly, which means we diagnose them fast and fix them right. We’re not authorized by Trane and we don’t pretend to be. What we are is fluent in their equipment, their sealed-system quirks, and their ComfortLink II communicating controls.
Why Trust Dalton Heating & Air Miami for Your Trane HVAC?
Marco Benitez, our owner, has been running Trane service calls across Miami for well over a decade. He learned the trade at Los Angeles Trade-Technical College and spent years on every system type before settling into South Florida’s specific brand of punishment: salt corrosion, 73% average humidity, and cooling seasons that never actually end. When a Trane XV20i throws a low-pressure lockout, Marco’s crew doesn’t guess. They pull gauges, check subcooling, and trace the leak to its source before quoting a dollar figure.
Every Dalton Heating & Air Miami technician is background-checked, uniformed, and factory-trained on Trane’s communicating systems and variable-speed platforms. We use genuine Trane or OEM-equivalent parts on sealed-system and communicating components. That matters because aftermarket boards and coils on a Trane often create more problems than they solve. We’d rather wait a day for the right part than install a workaround that fails in six weeks. The Garrison Standard, which Dalton has operated under since 2003, requires exactly that discipline on every job, no exceptions.
One of our techs recently traced a Trane XV20i that kept throwing a low-pressure lockout to a microscopic leak in the indoor spine-fin coil, caused by years of salt corrosion. After replacing the coil and pulling a deep vacuum, we recharged the R-410A to exact subcooling and updated the ComfortLink II firmware so the variable-speed drive would stop hunting. The homeowner now has steady 40% humidity on the hottest afternoons. That’s the difference between guessing and knowing.
Styles & brands we work with





Common Trane HVAC Problems We Fix in Miami
- Trane XV20i variable-speed compressors short-cycling from failed inverter drive boards. This one shows up a lot after storm-surge power fluctuations or lightning strikes nearby. The inverter board takes a voltage spike, starts misreading compressor speed, and the system cycles on and off every few minutes. The fix is board replacement with a genuine Trane part, followed by firmware update. We keep these boards on order priority for Miami because August storms make them fail in clusters.
- Aluminum spine-fin coils on XR14 and XL18i developing pinhole leaks from salt-laden coastal air. Trane’s spine-fin design is efficient, but Miami’s salt air eats at the thin aluminum fins over time. We find the leak with an electronic sniffer, then either patch and recharge or replace the coil outright depending on how many spots are compromised. If it’s one pinhole on a coil under eight years old, patching is legitimate. If it’s three or more, the coil is done.
- ComfortLink II thermostats losing signal with the air handler, causing staged cooling lockouts. The communicating control system Trane uses is great when it works, but signal loss between the thermostat and air handler can lock the system into first stage only, or shut it down entirely. We re-terminate connections, check the low-voltage wiring for corrosion, and re-sync the system. Sometimes it’s a bad thermostat; sometimes it’s a rodent that chewed a wire in the attic.
- RunTru heat pumps icing over from stuck reversing valves during Miami’s humid shoulder seasons. RunTru is Trane’s value line, and the reversing valves on their heat pumps are a known weak point. When the valve sticks halfway, the outdoor coil ices up even when it’s 55 degrees outside. We diagnose the valve position, confirm the solenoid is getting voltage, and replace the valve body if it’s seized. This is a sealed-system job, so refrigerant recovery and recharge are part of it.
- Condensate drains and drain pans clogging with bio-growth during the May-October wet season. Miami systems run 3,000+ hours a year, and the constant moisture breeds algae and mold inside condensate lines and pans. Trane’s drain pans are tough, but they still overflow when the line clogs. We flush the line, treat the pan with a biocide, and often recommend a UV air purifier for the coil to slow regrowth. In older Miami homes with slab ducts, a rusted-out drain pan under the coil is a common find after a rainy season.
Trane Parts & Our Repair-vs-Replace Approach
We install genuine Trane or OEM-equivalent parts on sealed-system and communicating components, every time. That’s compressors, coils, inverter boards, reversing valves, and ComfortLink II controls. For universal components like capacitors, contactors, and fan motors, we use high-grade aftermarket parts only when factory parts are backordered and you approve the substitution in writing first. No surprises.
The repair-vs-replace call is simple math. If a Trane compressor or coil fails outside warranty and the unit is over 10 years old, we give you an honest replacement quote alongside the repair cost and let the numbers speak. We don’t push replacement on a 6-year-old XR14 with a bad capacitor. We do tell you straight when a 12-year-old unit with a failed compressor is a money pit. Written price before any work starts, every time. Call (850) 754-6042 if you have a Trane acting up and want a straight answer.
Trane Service Line-Item Pricing in Miami
| Service | Price Range |
|---|---|
| AC Repair diagnostic and common component | $175 – $765 |
| Refrigerant recharge with leak seal | $295 – $650 |
| UV air purifier install | $650 – $1,350 |
Our Trane Service Process – Step by Step
- 1
Diagnosis. We arrive inside the stated window, put on shoe covers inside your home, and start with static pressure and subcooling readings on your Trane. If it’s a communicating system, we check the ComfortLink II error log first. We show you what we find and explain it in plain terms. You get a written price before we touch anything.
- 2
Repair or install. Genuine Trane or OEM-equivalent parts go in on sealed-system and communicating components. If we’re installing UV air purification or doing a refrigerant recharge on your Trane, we pull a proper vacuum first and recharge to exact manufacturer subcooling specs.
- 3
Test. We run the system through a full cycle in both stages where applicable, confirm refrigerant pressures, measure temperature drop, and check humidity output. On Trane variable-speed systems, we verify the inverter drive is ramping properly and the ComfortLink II thermostat is communicating cleanly with the air handler.
- 4
Guarantee. Every repair carries a written full-year guarantee. If the work fails within that year, Dalton Heating & Air Miami returns at no charge. That’s the 365-Day Done Right Promise, and it’s included on every job. Not an upgrade. Not a membership perk.
See the difference
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AfterTrane Products We Service & Install in Miami
We service and install the full Trane residential lineup, including Trane HVAC in Kendall, FL and across Miami homes: the XV20i variable-speed platform with ComfortLink II controls, the XR14 single-stage workhorse, the XL18i two-stage system for humidity control, and the RunTru by Trane value line for budget-conscious replacements. We also work on older Trane models still running in Miami’s 1960s-1980s condos and 1920s-1950s bungalows, where through-wall and packaged units are common due to condenser placement restrictions.
Our local parts stock includes common Trane capacitors, contactors, fan motors, pressure switches, and ComfortLink II thermostats for faster turnaround. Sealed-system parts like coils and compressors are ordered same-day from our Miami supply house and typically arrive within 24-48 hours.
We Also Service These Brands
Trane is a big part of our week, but Dalton Heating & Air Miami services eight other major residential brands, including Carrier and Lennox. If you have a Carrier Infinity system with humidity control issues or a Lennox Signature Series that’s short-cycling, we diagnose and repair those with the same written pricing and full-year guarantee. Factory-trained across all nine brands means we’re not brand-blind when a mixed-system home needs work.
FAQs – Trane HVAC Service in Miami
Short-cycling on a Trane XV20i in Miami is almost always a failed inverter drive board or a communicating signal issue between the ComfortLink II thermostat and the air handler. The filter isn’t the problem. Storm-surge power fluctuations and voltage spikes from lightning take out those inverter boards on a regular basis in South Florida. We confirm the board failure with an error code read, replace it with a genuine Trane part, and update the firmware so the variable-speed drive stops hunting. Call (850) 754-6042 for a diagnostic.
Yes, in many cases we can patch a single pinhole leak in a Trane spine-fin coil with an epoxy-based repair and recharge the system to spec. But if the coil has multiple pinholes from years of salt exposure, patching becomes a losing game, and we’ll recommend coil replacement or condenser evaluation. We always show you the leak sites and give an honest repair-vs-replace quote before any work begins.
That error means the thermostat lost signal with the air handler, and the fix is usually a wiring or termination issue, not a bad thermostat. We check the low-voltage connections at both ends, inspect for corrosion or rodent damage in the attic, and re-sync the system. If the thermostat itself has failed, we install a genuine Trane replacement and re-run the ComfortLink II setup. Call (850) 754-6042 and we’ll diagnose it same day in most Miami neighborhoods.
A RunTru heat pump icing up in Miami’s shoulder-season humidity is typically a stuck reversing valve, though sometimes it’s a refrigerant charge issue or a defrost board failure. We confirm the valve position, check that the solenoid is receiving voltage, and replace the valve body if it’s seized. That’s a sealed-system repair, so we recover the refrigerant, replace the valve, pull a vacuum, and recharge to exact spec. Done in one visit when parts are in stock.
Usually not, and we’ll tell you that plainly. A compressor replacement on a 12-year-old XR14 costs thousands, and the compressor failure on an older unit often means the evaporator coil has been struggling too. We’ll put both numbers in front of you: what the repair costs, and what a replacement XR14 or RunTru system costs installed. The math usually points to replacement, but we never push it. You decide. Call (850) 754-6042 for an honest written quote.
Most our AC Repair services in Miami run $175 – $765 for diagnostic and common component work. Refrigerant recharge with leak seal is $295 – $650. UV air purifier installation runs $650 – $1,350. Full AC installation is $4,130 – $8,850 depending on size, efficiency tier, and ductwork conditions. Every price is in writing before we start. Call (850) 754-6042 for an exact quote – estimates are free.
Book Your Trane Service in Miami, FL
If your Trane is short-cycling, icing up, leaking, or throwing a communicating error, call Dalton Heating & Air Miami at (850) 754-6042. We answer 24/7, show up inside the window, and put the price in writing before we touch anything. Trane HVAC service in Miami, done by the book, guaranteed for a full year.
Written by Marco Benitez, Owner at Dalton Heating & Air Miami, serving Miami since 2003.