Heating Repair in Land O' Lakes, FL

What a failure means depends on the equipment. The GeoPlan report, drawn from the 2017-2021 American Community Survey, counts 12,278 single-family units, 1,445 multi-family units and 505 mobile home units in the community.

A heat pump. Honeywell Home explains that a heat pump uses the outdoor unit for both heating and cooling. Many have backup or auxiliary heat for cold weather. Carrier notes that this backup typically uses electric resistance heating strips in the air handler, the indoor unit that moves air through the ducts.

A straight air conditioner with electric heat. The Florida Solar Energy Center at the University of Central Florida describes this pairing and calls it much less efficient than a heat pump. Here the outdoor unit only cools, and the heat comes from the indoor side.

A manufactured home. If you live in one of the community's mobile or manufactured homes, say so when you call. Our guide to mobile home air conditioning explains how that equipment differs.

A quick clue is on the wall. Honeywell Home notes that thermostats controlling heat pumps with backup heat typically have an Em Heat (emergency heat) position. Our guide on how to tell if you have a heat pump covers the other signs.

The Weather Service office in Ruskin forecasts Pasco County as two zones, Coastal Pasco and Inland Pasco. Its warnings for those zones mark the nights a heating system gets tested.

• November 11, 2025: a Cold Weather Advisory for both zones. The office warned that wind chill values of 30 degrees or less can lead to hypothermia with prolonged exposure.
• Issued December 30, 2025: a Freeze Warning for both Pasco zones with temperatures as low as 31 expected, plus a Cold Weather Advisory for wind chills as low as 26.
• Issued January 15, 2026: a Freeze Warning covering both zones.
• January 31 into February 1, 2026: the Extreme Cold Warning, with wind chills as low as 8 and a hard freeze as low as 20 expected.
• February 24, 2026: cold alerts for both zones again, including a Freeze Warning for one of them.

So one winter's alerts for Pasco ran from November into late February. In its January 30 warning, the office cautioned that an extended period of freezing temperatures could rupture water pipes.

On nights like these a heat pump leans on its backup heat. Trane lists an outdoor temperature below 40 degrees as one trigger for auxiliary heat. Defrost mode and raising the thermostat by more than 3 or 4 degrees are others. Our guide to heat pump defrost mode explains that cycle.

These are the only checks to make yourself. Leave every panel closed, and stop at anything that feels unsafe.

1. Thermostat settings. Set the mode to Heat, with the set temperature above the room temperature. Lennox notes that a thermostat set incorrectly can send the heat pump the wrong signals. Our thermostat settings guide has a starting point.
2. Air filter. Lennox explains that restricted airflow can make a system shut down or freeze up as a protective measure, and it names a dirty filter as a common, often overlooked cause. Replace a filter that looks clogged. See HVAC air filters.
3. Vents, returns and the outdoor unit. Open the supply registers, move furniture and rugs off the return grilles, and clear leaves away from the outdoor unit. Lennox notes that leaves, ice or snow can block the outdoor unit's airflow, especially in winter.

If a breaker for the heating system or outdoor unit has tripped, leave it off and call a licensed contractor. Lennox notes that a breaker may trip after a power surge or when the system has overheated. Finding which one happened is a job for a technician.

Here is what each complaint can point to. A diagnosis confirms the cause before any part is replaced.

A burning smell on the first cold night

Trane says: After the dust burns off, the smell typically dissipates. If dust is the likely cause, Trane suggests letting the unit run for about 10 minutes. A burning electrical odor is different. Trane says it could indicate a severe electrical problem, so turn the unit off and call a licensed HVAC professional.

AUX HEAT that will not go out

Trane describes auxiliary heat as the heat pump's backup heating system. It suggests investigating when it is above 40 degrees outside and the thermostat shows AUX HEAT for more than an hour or two. Carrier notes that electric resistance heating typically costs more to run than heat pump heating. A heat pump stuck on its strips makes a cold week more expensive. More on auxiliary heat.

An outdoor unit iced solid

Lennox lists an outdoor unit that is frozen solid or damaged as one that cannot operate safely until it is inspected. Switch to Em Heat and call.

No heat at all after the safe checks

Lennox says that a heat pump that still will not turn on after basic troubleshooting needs an HVAC technician. It lists burning smells among the warning signs. Carrier likewise recommends a qualified HVAC professional when a heat pump is not operating properly.

Carrier explains that Emergency Heat shuts off the heat pump entirely and uses only the backup heating source. Trane calls it a setting to use only in a true emergency, and says to call for HVAC service right away once you switch it on.

Lennox lists three times it makes sense:

• Your HVAC technician tells you to turn it on.
• The heat pump has completely failed.
• The outdoor unit is frozen solid or damaged.

Lennox adds that emergency heat parts are not designed to be the primary heat source for extended periods. It also warns that the energy bill can climb quickly if emergency heat runs for days or weeks. Treat it as a way through a freeze night, not a repair. Our emergency heat guide has more.

The Weather Service's January 30, 2026 warning for Pasco told residents to make sure portable heaters are used correctly. It also said not to use generators or grills inside. The U.S. Consumer Product Safety Commission spells out the basics:

• Place portable heaters at least three feet from drapes, furniture and bedding.
• Plug electric space heaters directly into a wall outlet, never into an extension cord or power strip.
• Do not leave a portable heater running unattended in a confined space.
• Never run a generator inside a home, basement, shed or garage, and place it at least 20 feet from the home.

The CPSC also says carbon monoxide alarms belong on every level of the home and outside sleeping areas. See our guide to carbon monoxide detector placement, and convection and radiant space heaters if you are choosing one.

The GeoPlan report counts 11,386 owner-occupied units and 2,356 renter-occupied units in the community. Among owner households, the median year of moving in is 2009. In the 2017-2021 survey, half of owner households had moved in during 2009 or earlier.

Tell the technician what you know about the system's age.

Among renter households the median move-in year is 2015. If you rent, tell the owner or property manager as well as calling, because the repair decision may be theirs.

A heating diagnosis looks at the whole system, not just the part that seems to have failed. That covers the thermostat's call for heat, the backup heat strips and their safety controls, and airflow. It also covers the heat pump's heating and defrost operation and the electrical supply.

Refrigerant work is done by EPA Section 608 certified technicians, who hold the federal refrigerant-handling credential. You get a written, upfront price before any work starts.

One failed part is a repair. On an older system, Blume shows the repair and the replacement side by side and does not sell equipment a home does not need. Replacement equipment is sized with an ACCA Manual J load calculation and Manual S selection. Financing is available through Synchrony Bank. For cooling problems, see AC repair in Land O' Lakes.

Blume Mechanical Service, LLC is a Class A licensed Florida air conditioning contractor (license CAC-1822618) and is fully insured. We are brand-agnostic and service all major manufacturers' equipment. Our office is at 2840 West Bay Drive #114, Belleair Bluffs, FL 33770, and our core service area is Pinellas, Hillsborough and Pasco counties. Our other local services are on the Land O' Lakes service page.

What to have ready when you call

• Whether the outdoor unit runs when the thermostat is set to Heat.
• Whether the thermostat shows AUX HEAT or has an Em Heat position.
• Whether a breaker has tripped.
• Any burning smell, and whether it faded.
• Whether the outdoor unit is iced over.
• Whether the home is a house, a townhome or condo, or a manufactured home.