Water heater repair in Miami, FL

Common water heater problems

• No hot water at all, or water that goes lukewarm after a few minutes
• Water pooling under or around the tank
• Popping or rumbling from the tank, usually sediment on the bottom
• Rusty or smelly hot water
• A tankless unit flashing an error code or cycling on and off
• Tripped breaker or a pilot light that will not stay lit

A leak from the tank body itself usually means replacement. A leak from a fitting, the pressure relief valve, or the drain valve can often be repaired. Heating elements and thermostats on electric heaters are common repair items.

Repair or replace

The U.S. Department of Energy puts the service life of a tank water heater at 10 to 15 years, and hard water and a hot garage pull that toward the low end. Parts that wear out on a tank that is otherwise sound are worth replacing: heating elements, thermostats, the temperature and pressure relief valve, the drain valve, and the anode rod. A leak from the tank body, rust coming out of the hot side, or a heater past ten years that needs a major part all point to replacement.

The anode rod is the piece that corrodes so the steel tank doesn't. In hard water it wears faster, and once it is gone the tank itself starts to rust. Checking it every few years and swapping it when it is worn is the least expensive way to add years to a tank.

Tank or tankless in a Miami house

Most houses and condos here run a 40- or 50-gallon electric tank. A whole-house electric tankless heater draws far more current than a tank, usually several large dedicated circuits, which an older panel often cannot supply without an upgrade. A gas tankless unit needs a gas line and a vent to the outside. In a condo, the closet size and the association's rules usually settle it before price does. Tankless units also need their heat exchanger flushed of scale on the maker's schedule, more often in hard water.

What the inspector looks at on a replacement

A replacement in Miami-Dade needs a permit, and the work is inspected against the plumbing volume of the Florida Building Code. The items that most often add work to a straight swap:

• A drain pan under a heater installed where a leak would damage the building, such as a closet, an attic, or an upstairs unit
• A thermal expansion tank where a check valve or backflow preventer closes the water system, so heated water has room to expand
• A temperature and pressure relief valve with its discharge piped to a safe place
• On gas heaters, the vent and the combustion air

What to have ready

Have the tank size (it is on the label), fuel type (electric or gas), and the rough age of the unit ready if you can. If the tank is leaking, shut the cold-water inlet valve on top of the heater and turn off the breaker or gas valve before you call. The plumber can tell you on the phone whether it sounds like a repair or a replacement and give you a range for each. Ask whether the price includes hauling away the old unit and whether a permit is required.

Water heater issues specific to Miami-Dade

South Florida water is hard, so sediment builds up quickly in tank heaters and shortens their life. Many heaters in Miami-Dade sit in garages, utility closets, or on condo balconies where humidity and salt air corrode fittings and control boards. Newer construction in Doral and West Kendall often uses tankless electric units that need a dedicated high-amp circuit, which limits swap options. Miami-Dade County requires a permit for water heater replacement, and many condo associations require notice before the work, so ask the plumber how they handle both.