
Pinellas County · Florida CAC-1822618
Heating Repair in Oldsmar, FL
The National Weather Service says the real cool down in this part of Florida does not usually occur until November. This page is for Oldsmar homeowners whose heat will not come on, runs without warming the house, or leans on its backup heat strips. It covers the checks that are safe to do yourself, how to keep warm safely while you wait, and who issues heating permits in the city. Blume Mechanical Service is a licensed Florida contractor (license CAC-1822618) with its office in Belleair Bluffs, and Pinellas County is part of our core service area.
Oldsmar is aligned along the north shore of Tampa Bay, at the easternmost edge of Pinellas County. Pinellas County's economic development office lists Tampa Electric as serving Oldsmar. If the heat fails on a cold night, the sections below help you decide whether to call.
When the cold usually arrives in this part of Florida
The Weather Service's Tampa Bay office keeps long records of when the first cool air arrives each year. It puts the long-term mean date for the first arrival of cooler, drier air in mid-October. It adds that this first shot of cool air usually lasts only a day or two.
Its table includes Tampa and Tarpon Springs. At the Tampa site, the mean date of the first low below 50°F is November 10. At Tarpon Springs it is November 4. Both sites share the same earliest freeze on record, 31°F on November 16, 1940.
The Weather Service says the real cool down does not usually occur until November. Pinellas County's own year-round planner lists "check heating equipment" as a December task. If you can, switch to Heat on a cool afternoon and confirm warm air at the vents before the cold night arrives. Our guide on when to turn on the heat covers the timing in more detail.
Safe checks when the heat will not come on
These need no tools and no panels removed. Stop at any step that feels unsafe.
- Thermostat mode and setpoint. Set it to Heat, with the set temperature above what the room reads. Tampa Electric suggests setting the central heating fan to "auto." Replace the batteries if the display is blank or faint.
- Air filter. The U.S. Department of Energy says to clean or change filters once a month or as needed. Tampa Electric says to inspect air filters regularly and replace them monthly.
- Supply vents and returns. The Department of Energy says to make sure warm-air registers are not blocked by furniture, carpeting or drapes. Clear the return grille the same way.
- The outdoor unit. If you have a heat pump, turn the system off at the thermostat and pull leaves and yard debris away from the cabinet by hand.
That is where homeowner checks end. If a breaker has tripped, leave it off and call a licensed contractor. Do not open the air handler, the outdoor unit's electrical panel, or any cover held on with screws. Our guides to thermostat settings and HVAC air filters go further.

Which kind of heat is in your home?
The answer changes what a failure means, so it helps to know before you call.
A heat pump. The Department of Energy says a heat pump heats your home by collecting heat from outside and concentrating it for use inside. It does double duty as a central air conditioner.
Electric heat. The Department of Energy says electric heating includes central forced-air electric furnaces, as well as wall-mounted or baseboard heating.
Gas heat. If your home has a gas furnace or another fuel-burning heater, say so when you call. The section on gas heat below applies to you.
If you are not sure which you have, see our guide on how to tell if you have a heat pump, or compare a furnace and electric strip heat.
Strip heat, AUX and your Tampa Electric bill
A heat pump may also have backup electric heat, often called heat strips. The Department of Energy calls heat pumps the most efficient form of electric heating, providing up to three times more heat than the energy they use. It also says backup electric-resistance heating is more expensive.
How you set the thermostat matters. Tampa Electric's advice is to adjust a heat pump only two degrees at a time, to avoid activating the supplemental heat strip. The Department of Energy says not to set back a heat pump's thermostat manually if it makes the backup heat come on.
A higher bill in a cold week does not always mean a fault. Tampa Electric says a cold snap can raise your bill even if the thermostat stays the same, because the system has to run longer. A different pattern is worth a call: the backup heat runs whenever the system is on, or the house only stays warm on Emergency Heat. Our guides to auxiliary heat and emergency heat explain both settings.
Gas heat and carbon monoxide
The U.S. Consumer Product Safety Commission says to have a professional inspect all fuel-burning heating systems each year. That includes furnaces, water heaters, flues and vents. It describes carbon monoxide as an odorless, colorless and poisonous gas.
The CPSC says CO alarms should be on every level of the home and outside sleeping areas, and should be tested every month. Pinellas County suggests replacing alarm batteries at the spring and fall time changes.
If a CO alarm sounds, do not try to find the cause yourself. Burner, flue and venting work belongs to a licensed contractor. Our guide to carbon monoxide detector placement covers where alarms go.
Staying warm safely while you wait
If you use a space heater while you wait, Pinellas County's guide gives these rules:
- Keep children away from it.
- Keep it at least 3 feet away from anything or anybody.
- Choose one with a thermostat and an automatic shut-off if it tips.
- Place it on a solid, flat surface, away from foot traffic, and never block an exit.
- Plug it into a wall outlet, never an extension cord.
- Turn it off and unplug it when you leave the room or go to bed.
Tampa Electric adds three points. Do not leave a space heater on all night, because the fire hazard is too great. Keep it away from drapes, furniture and other flammable items. Avoid using it in the bathroom. Our guide to convection and radiant space heaters compares the two types.
What a technician tests on a heating call
- Controls: the thermostat's call for heat and the relays that bring the heat strips on.
- Heat strips: the current each one draws, and the condition of its safety limits and wiring.
- Airflow: blower operation, filter condition and the temperature rise across the air handler.
- Heat pump operation: refrigerant pressures in heating mode, the reversing valve and the defrost control.
- Electrical supply: the breakers and connections that feed the heat.
Refrigerant work is done by EPA Section 608 certified technicians, the federal refrigerant-handling credential. You get a written, upfront price before any work starts.
Who issues heating permits in Oldsmar
The city does not issue building permits itself. Oldsmar's Building Division says all Florida Building Code permits for the city are issued by Pinellas County. That arrangement comes from an interlocal agreement that took effect on September 1, 2021.
The city lists mechanical and A/C changeouts among the permit types that may be submitted directly to the Pinellas County Building Department. Pinellas County Building Services is at 440 Court Street in Clearwater, and its phone number is 727-464-3888. The city's Building Division can be reached at 813-749-1100.
Ask before work starts whether your job needs a permit. Our Florida HVAC permit guide explains the statewide rules, and our Oldsmar HVAC page covers the city more broadly.
Repair now or wait until next winter
Because the real cool down does not usually come until November, it is tempting to leave a heating fault until next winter. On a heat pump, that is a poor bet, because the same machine does the cooling.
One failed part is a repair. If the diagnosis finds a larger failure on older equipment, Blume shows the repair and the replacement side by side and does not sell equipment a building does not need. Replacement equipment is sized with an ACCA Manual J load calculation and Manual S selection. Financing is available through Synchrony Bank. If cooling is the problem instead, see AC repair in Oldsmar.
Blume Mechanical Service in Oldsmar
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.
What to have ready when you call
- Whether the outdoor unit runs when the thermostat is set to Heat.
- What the thermostat is set to, what it reads, and whether AUX or Emergency Heat is showing.
- Whether a breaker has tripped.
- Whether the home has gas heat, and whether a CO alarm has sounded.
- Any burning smell, and whether it faded or stayed.
- When the heat last worked.
Frequently asked
When does the real cool down usually come in this part of Florida?
The National Weather Service says the real cool down in this part of Florida does not usually occur until November. On its table, the mean date of the first low below 50°F is November 10 at Tampa and November 4 at Tarpon Springs.
My bill went up in a cold week. Is my heater broken?
Not necessarily. Tampa Electric says a cold snap can raise your bill even if the thermostat stays the same, because the system runs longer. If backup heat runs constantly or the house only stays warm on Emergency Heat, have the heat pump diagnosed.
Is it safe to use a space heater until the repair?
It can be, with care. Pinellas County says to keep it at least 3 feet from anything or anybody and to plug it into a wall outlet, never an extension cord. Turn it off and unplug it when you leave the room or go to bed.
Who issues heating and A/C permits for an Oldsmar home?
Pinellas County. The City of Oldsmar says all Florida Building Code permits for the city are issued by the county, and mechanical and A/C changeouts may be submitted directly to the Pinellas County Building Department.
Do I need to call a pro for this?
Maybe. If the thermostat was on the wrong setting, the filter was clogged, or something blocked a vent, a return or the outdoor unit, fixing that may bring the heat back. Call a licensed contractor if a breaker has tripped, backup heat runs all the time, a CO alarm sounds, or you notice a burning smell. Refrigerant, electrical and gas work belong with a licensed contractor.
Homeowner guides
For heating repair in Oldsmar, FL, call Blume Mechanical Service at 727-330-9131.
References: Experience Oldsmar (City of Oldsmar) · Building Division (City of Oldsmar) · Utilities, Data & Telecommunications (Pinellas County Economic Development) · Autumn Began on Sept. 22nd, So When Does It Usually Cool Off? (National Weather Service Tampa Bay) · Cold Weather Can Drive Up Heating Costs — Tampa Electric Provides Ways to Save (Tampa Electric) · 2026 Pinellas County Hurricane Guide (Pinellas County) · Tips on Saving Money and Energy in Your Home (U.S. Department of Energy) · There's a Chill in the Air – Stay Warm Safely – Be Cautious When Using Generators, Furnaces and Space Heaters (U.S. Consumer Product Safety Commission)
Also in Oldsmar: AC repair in Oldsmar · Heat pump repair in Oldsmar · AC maintenance in Oldsmar
Residential Heating Repair nearby: Heating repair in Largo · Heating repair in Tampa · Heating repair in St. Petersburg · Heating repair in Clearwater