A fall tune-up is the simplest way to keep a Crossville furnace or heat pump from quitting on the first hard freeze. What the technician should check depends on which system you have, so this guide covers both, along with how often to schedule service and what it costs here.
When should you schedule a heating tune-up in Crossville?
Crossville Heating & Cooling recommends servicing your heating system in the fall, before it starts running every day. ENERGY STAR’s maintenance checklist says the same, noting that contractors get busy once winter comes, and Carrier recommends a professional furnace tune-up every fall, before heating season starts.
Timing matters here because of how hard our systems work in January. Cumberland County’s winter design temperature is 14°F in the ENERGY STAR reference guide, and the coldest nights are when a system runs longest. A worn part found in October is a scheduled repair. The same part found during a cold snap is usually an emergency call.
Do you have a heat pump or a gas furnace?
Your tune-up depends on whether a heat pump or a gas furnace heats your home, and in Cumberland County it’s close to a coin flip. Census figures put about 48% of homes on electric heat and about 42% on natural gas.
A few quick ways to tell:
- The outdoor unit runs in winter. That’s a heat pump. An air conditioner sits idle once the weather turns cold.
- Your thermostat has an AUX or EM HEAT setting. That’s a heat pump with backup electric heat.
- A metal vent pipe and a gas line connect to the indoor unit. That’s a gas furnace.
Some homes have both: a heat pump for most of the winter and a gas furnace as backup on the coldest days. That setup needs both checklists below.
What should a heat pump tune-up include?
A heat pump tune-up should test the parts that only work in heating mode, because a heat pump that cooled fine all summer can still struggle in its first cold week. The winter-critical points on Carrier’s twelve-point heat pump service checklist are:
- Defrost cycle. In cold, damp weather the outdoor coil frosts over, and the defrost cycle melts it off. If defrost fails, the coil ices up and the system cannot heat.
- Auxiliary heat. Backup electric heat covers the house during defrost and on the coldest nights. Carrier’s list includes testing heat while the system is in defrost.
- Reversing valve. This is the part that switches the system between cooling and heating.
- Refrigerant charge and leaks.
- Outdoor coil, capacitor and electrical connections.
- Indoor coil, blower, drain and filter. These are the same airflow checks as a cooling tune-up.
Carrier notes that a brief burst of cooler air during defrost can be normal. If yours is blowing cold for longer stretches, our guide to why a heat pump blows cold air explains what’s normal and what isn’t.
What should a gas furnace tune-up include?
A gas furnace tune-up is mainly a safety check. ENERGY STAR’s checklist calls for checking “all gas (or oil) connections, gas pressure, burner combustion and heat exchanger,” because a dirty burner or a cracked heat exchanger makes the furnace run less safely and less efficiently. Carrier warns that a cracked heat exchanger can lead to a carbon monoxide leak.
Carrier’s 11-point furnace checklist also covers:
- Cleaning the burner, crossover and ignitor
- Checking and adjusting the gas valve
- Cleaning the heat exchanger and inspecting it for cracks, holes or leaks
- Running the furnace and measuring the temperature difference between the return and supply air
- Inspecting the blower and blower motor
- Checking for burned wires or overheating
- Inspecting the flue pipe and ductwork
- Checking the gas line for leaks
Most of that list happens inside the burner compartment, so a furnace visit that never opens it isn’t a full tune-up.
What can you do before the technician arrives?
A few homeowner checks make the visit go faster and catch the easy problems before they cost you a service call:
- Check the air filter. ENERGY STAR recommends inspecting it monthly. Replace it if it looks dirty.
- Clear around the outdoor unit. Rake out leaves and cut back brush so air can move freely across the coil.
- Clear around the furnace. Don’t store boxes, paint or cleaning supplies against it.
- Open your vents. Move rugs and furniture off supply and return grilles.
- Run the heat on a mild day. Find out it won’t start on a 60-degree afternoon, not on the first night in the 20s.
- Test your carbon monoxide alarms if you heat with gas.
Carrier says refrigerant checks, electrical testing and mechanical repairs belong to a qualified professional, and on a gas furnace so does anything inside the burner compartment.
Is a burning smell normal the first time the heat comes on?
Usually, yes. Dust settles on the heat exchanger or heat strips over the summer and burns off the first time the system heats, and the smell should fade after that first run. If it does not fade, or it smells electrical or like hot metal, turn the system off and call us. If you smell rotten eggs near a gas furnace, leave the house and call your gas company from outside.
What if your home sits empty part of the winter?
If your Fairfield Glade or Lake Tansi home sits empty for part of the winter, book the tune-up before you leave, not after you get back. A system that fails in an empty house can let the pipes freeze before anyone notices. Leave the heat on rather than off, and have someone check the house after hard freezes. Our winter home protection guide covers the plumbing side.
How often should a furnace or heat pump be serviced?
Service a gas furnace once a year, in the fall. Service a heat pump twice a year, in the spring and fall, because it heats and cools. That’s Carrier’s recommendation for heat pumps, and it’s how our maintenance memberships are set up: two HVAC visits a year, typically timed for spring and fall.
If you have a gas furnace with central air, the same two visits cover both, with the air conditioner in spring and the furnace in fall. Our AC maintenance guide covers the spring visit.
How much does a heating tune-up cost in Crossville?
Crossville Heating & Cooling’s Platinum HVAC membership is $155.88 a year for one system and two maintenance visits, which works out to about $78 a visit. Carrier puts service plans with two visits a year at $150 to $300, so ours sits at the low end of that range.
If you’d rather book a single visit, check our current specials for seasonal tune-up offers. A standard service call outside of maintenance is $79. Our HVAC maintenance includes a 38-point inspection, coil cleaning, refrigerant level checks and condensate treatment.
Is a maintenance plan worth it?
A maintenance plan makes the most sense if your system is more than a few years old or you’d rather not think about scheduling. Both memberships include two HVAC visits a year and a dedicated member hotline. The difference is what happens when something breaks:
| Platinum | Diamond | |
|---|---|---|
| HVAC maintenance visits | 2 a year | 2 a year |
| Repair discount | 10% | 15% |
| Service / diagnostic fee | Full price | Waived |
| After-hours fee | Full price | None |
| Scheduling | Priority service | Skip the line |
Platinum covers the maintenance itself. Diamond pays off when a repair comes up, and most of all if it comes up outside office hours. If you’d only ever call us for the tune-up, a one-time visit is fine.
Frequently Asked Questions
Does a heat pump need maintenance in the winter?
Yes. The fall visit tests the defrost cycle and backup heat. Between visits, keep snow and leaves off the outdoor unit. A light frost that clears on its own is normal, but heavy ice that stays on the coil means it’s time for a heating repair call.
Does skipping maintenance affect my warranty?
It can. Carrier lists validating warranty coverage among the reasons to service a heat pump regularly. Check the maintenance terms in your own warranty paperwork, and keep the records from each visit.
Does Crossville Heating & Cooling service all brands?
Yes. Crossville Heating & Cooling services all makes and models of heat pumps and furnaces. We primarily install Tempstar and Carrier, and we can install any brand you want.
Schedule Your Fall Heating Tune-Up
Crossville Heating & Cooling has served Crossville since 1982, and fall is the best time to get on the schedule before the first cold snap. Call (931) 484-0004 or schedule online to book a tune-up, or ask about a maintenance membership that covers both visits. If your system is already acting up, our heating repair team is available 24/7.
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