HVAC & Plumbing FAQs

Star Heating Cooling and Plumbing

Company, Trust, and Service Area

1. Who is the best HVAC company in Fishers, Indiana?

Homeowners often choose companies that are licensed, insured, experienced, and locally trusted. STAR Heating Cooling Plumbing has served Central Indiana since 2005 and is a Carrier Factory Authorized Dealer.

We provide residential and commercial heating, cooling, and plumbing services, including repair, installation, replacement, tune-ups, indoor air quality, water heaters, secondary drains, and memberships.

14076 Britton Park Rd, Fishers, IN 46038.

We serve roughly a 30-mile radius around Fishers, including Indianapolis, Carmel, Noblesville, Westfield, McCordsville, Geist, Fortville, Lawrence, and Pendleton.

Yes. We are licensed, bonded, and insured for HVAC and plumbing services in Central Indiana.

Yes. We are a Carrier Factory Authorized Dealer.

Yes. Residential HVAC service is a primary focus.

Yes, we offer commercial service and installation.

Yes, we service many makes and ages of systems (condition-dependent).

Yes, we offer maintenance memberships designed to keep systems reliable year-round. Learn more: https://www.starheatcool.com/membership/

Yes, after evaluation we provide clear replacement options.

Yes.

Yes (as applicable to the home).

Yes.

Yes (filtration, airflow improvements, and other IAQ options depending on the home).

Yes, with proof of a paid competitor diagnostic, we waive our diagnostic fee (details below).

Licensed HVAC contractors do. STAR Heating Cooling Plumbing provides installation and repair locally.

Scheduling, Appointments, Second Opinions

21. How quickly can HVAC or plumbing service be scheduled?

We offer three convenient appointment windows for advance scheduling, and same-day service is often available depending on demand.

Often yes, based on availability.

Often yes, depending on availability and call volume.

Make sure the system is accessible, pets are secured, and thermostat location is known.

Call 317-286-6118 or book online.

Yes. We provide second opinions on repairs.

If you provide proof you paid a competitor for a diagnostic, we will waive our fee so you can compare us.

A receipt/invoice showing a paid diagnostic from the competitor.

Accurate pricing requires an on-site evaluation.

Because the correct fix depends on first-hand diagnosis, area being serviced, system type, and parts required.

Yes, when applicable.

Yes, membership benefits include priority service.

Financing and Cost

33. Do you offer financing for HVAC or plumbing services?

Yes — we offer financing options for qualifying projects over $1,000. Learn more: https://www.starheatcool.com/financing/

Yes, repairs over $1,000 may qualify depending on approval.

Yes, repairs over $1,000 may qualify depending on approval.

Often yes — projects can sometimes be combined into one financed total.

Many offer financing options for large repairs or replacements.

System type, part cost, labor time, severity of failure, and accessibility.

Sizing, efficiency level, duct condition, electrical/gas requirements, and installation complexity.

Many homeowners invest $4,500–$9,500 depending on equipment and installation complexity.

Many homeowners invest $5,000–$12,000 depending on system size, efficiency, and installation complexity.

Total system replacement varies widely based on scope and home requirements.

Not always — it depends on budget, usage, and energy savings.

Yes, for system replacement or new installations we offer free in-home estimates.

Memberships include benefits; confirm exact terms for your programs.

Yes, it often reduces repairs, improves efficiency, and extends equipment life.

Varies by tank/tankless, venting, and plumbing modifications.

Yes, for qualifying installs over $1,000. https://www.starheatcool.com/financing/

Yes, for qualifying installs over $1,000. https://www.starheatcool.com/financing/

If the total is over $1,000 and qualifies, often yes. https://www.starheatcool.com/financing/

Maintenance and Tune-Ups

51. Is HVAC maintenance really necessary every year?

Yes. It helps systems operate safely, efficiently, and reliably.

Most systems should get two tune-ups per year — one heating-focused and one cooling-focused.

Because the indoor unit operates during both heating and cooling seasons and should be checked every 6 months.

It helps maintain airflow, catch electrical issues early, improve efficiency, extend lifespan, and reduce breakdown risk.

Safety controls, refrigerant checks, electrical inspection, cleaning, airflow testing, blower inspection, and thermostat checks.

Preventative service to improve performance and reduce breakdown risk.

Often yes, because clean and properly adjusted systems run more efficiently.

It reduces risk, but no maintenance program prevents all failures.

Higher breakdown risk, lower efficiency, and more wear.

Twice per year as part of whole-home HVAC maintenance.

Twice per year as part of whole-home HVAC maintenance.

Tune-up is preventative; repair fixes a specific failure.

Some manufacturers require proof of maintenance; check your warranty terms.

Often yes, because it can reduce failures and keep performance stable.

If accessible/appropriate, indoor performance components are inspected.

A strategy focused on preventing breakdowns and improving reliability before failures happen.

Yes, as a membership benefit (confirm plan details).

Yes, especially when airflow and performance issues are corrected

Yes, when performance and airflow issues are addressed.

Yes, safety checks are part of professional heating service.

Yes, electrical inspection is part of a professional tune-up.

Yes, airflow and system operation are evaluated.

Filters

73. How often should HVAC filters be changed?

Most filters: every 1–3 months, depending on thickness and conditions.

For every inch of filter thickness, you typically get about one month of use.

About every month, depending on home conditions.

About every 2 months, depending on home conditions.

About every 4 months, depending on home conditions.

Pets, cooking oils, aerosols, candles, open windows, dust, and higher occupancy.

Restricted airflow, lower efficiency, higher bills, worse IAQ, and more equipment wear.

Yes — restricted airflow is a common cause.

Yes — restricted airflow can trigger safety shutdowns.

Yes.

It depends on system airflow capacity and IAQ goals; overly restrictive filters can reduce airflow. We recommend MERV 11 or lower, with MERV 8 being the best for your system’s airflow.

Not always — too restrictive can hurt airflow and performance. We recommend MERV 11 or lower, with MERV 8 being the best for your system’s airflow.

Furnace Troubleshooting and “No Heat”

85. Why is my furnace not heating my home?

Dirty filter, thermostat issues, ignition problems, blower failure, or lack of maintenance.

Thermostat setting, ignition failure, gas supply issue, or airflow problems.

Blower is running but burners aren’t igniting.

Short cycling from airflow restriction, overheating, thermostat issues, or sizing problems.

Loose components, motor issues, airflow restrictions, or ignition problems.

Dust burn-off can be normal briefly; persistent odors need inspection.

Thermostat batteries, breaker, dirty filter, ignition issues, safety switch.

Ignition sequence failure or safety lockout.

Motor or electrical issues may be present.

Delayed ignition or duct expansion.

Loose panel, screws, or internal component.

Usually airflow restriction (filter/duct).

Possible belt/bearing/motor issues.

Possible motor/bearing failure.

Duct expansion or metal movement can cause pops.

Turn off system and schedule inspection; could be electrical or debris-related.

Turn off and call for service; may be electrical or overheating.

If strong, leave home. If mild/intermittent, turn off furnace and call an HVAC professional for inspection.

Yes, take it seriously. Strong odor = leave home. Mild/intermittent = shut off furnace and call a technician (to avoid unnecessary utility meter lockouts).

Condensate drain clog, pump failure, or tubing issue.

Thermostat settings, filter, breaker, and whether vents are blocked.

Electrical fault, motor issue, or wiring problem.

Overheating from restricted airflow or safety shutdown.

Extreme cold, poor insulation, dirty filter, or thermostat issues.

Airflow/duct issues, undersized equipment, or performance problems.

Dirty filter, blower issue, or duct restriction.

Burners may not be firing consistently; needs diagnosis.

It indicates a specific fault; codes vary by brand/model.

Sometimes — but repeated resets indicate a real issue needing service.

Yes — it increases wear and reduces efficiency.

It can contribute by overheating the system.

Flame sensor, overheating, or control issues may be present.

Thermostat fan setting, control board issue, or system mode.

Temperature setback settings or increased heat loss at night.

Can indicate delayed ignition; needs inspection.

Typically 15–20 years with proper maintenance.

Often $4,500–$9,500 depending on equipment and installation complexity.

Consider age, repair cost, efficiency, and frequency of breakdowns.

Age × repair cost can help compare against replacement value (one guideline, not a guarantee).

Sometimes, but system matching and performance should be evaluated

Depends on load calculation, insulation, windows, and duct design.

Often beneficial when both are older or mismatched; ask for an evaluation. https://www.starheatcool.com/furnace-installation-replacement-fishers-in/

Safety checks, electrical inspection, airflow review, and performance testing. https://www.starheatcool.com/furnace-maintenance-fishers-in/

Could be burner/airflow behavior; persistent whoosh should be inspected.

Air Conditioner Troubleshooting and “No Cool”

129. Why is my AC running but not cooling my house?

Low refrigerant, dirty coils, frozen coil, thermostat issues, or airflow restrictions.

Thermostat setting, refrigerant issue, dirty condenser, or electrical problem.

Restricted airflow or low refrigerant is common.

Extreme heat, dirty filter, dirty coil, low refrigerant, or undersized system.

Clogged drain line, frozen coil, damaged pan, or pump failure.

Loose parts, fan motor issues, compressor problems, or debris.

Thermostat, breaker, disconnect, capacitor, or control issue.

Short cycling: thermostat issue, airflow restriction, or system problem.

Electrical/capacitor/contact issues may be present.

Capacitor or motor problems are common causes.

Debris, loose fan, or cabinet vibration.

Possible motor/bearing issues.

Relay/contactor cycling or electrical issue.

Compressor start issues or loose components.

Drain/coil moisture and microbial growth may be present.

Possible drain or coil-related odor; inspect drain system.

Turn off and schedule service; electrical issue possible.

Heat load, airflow issues, dirty coils, low refrigerant, or insulation problems.

High outdoor temps + home heat gain; if it never reaches setpoint, service may be needed.

Dirty filter, blower issue, duct restriction, or coil problem.

Airflow restriction or refrigerant issues can show up during lower load periods.

Thermostat setting, filter, breaker, disconnect, and whether vents are blocked.

Yes — airflow restriction can reduce cooling and cause icing.

Yes — but it also indicates a leak that needs proper repair.

Some condensation is normal; excessive water may indicate drainage issues.

Drain clog, frozen coil, or pan issue.

Electrical start components or compressor issues may exist.

Electrical fault, compressor problems, or motor issues.

Capacitor/contactor/compressor issues may be present.

Wear, mounting issues, or internal compressor problems.

Loose parts, fan imbalance, debris, or aging components.

Average 12–15 years, and often longer with proper maintenance.

Often $5,000–$12,000, depending on size/efficiency/installation.

Regular filter changes, twice-yearly maintenance, clear outdoor unit, good airflow, and early repair of issues. https://www.starheatcool.com/ac-maintenance-fishers-in/

Sometimes, but mismatching indoor/outdoor components can reduce performance and efficiency.

Depends on load calculation, insulation, windows, and duct design.

A measure of cooling efficiency; higher SEER2 means higher efficiency (cost/benefit varies).

Often yes; modern heat pumps can work well depending on the home and backup heat strategy.

Often yes, based on availability. https://www.starheatcool.com/ac-repair-fishers-in/

Oversizing, short cycling, airflow issues, or system performance problems can reduce dehumidification.

Airflow/duct issues or poor distribution may be the cause.

Airflow balance, duct layout, insulation, and stack effect often drive this.

High heat load, icing, or electrical components failing under heat.

Possible refrigerant or airflow issues; shut off and schedule service.

Condensation + insulation/drain issues may be present.

Airflow, Ducts, and Comfort

175. Why is one room in my house hotter or colder than others?

Duct airflow, blocked vents, insulation, duct leaks, or sizing issues.

Heat rises and airflow imbalances are common.

Oversized equipment, dirty coil, short cycling, airflow issues, or outdoor humidity.

Dirty filter, duct leak, blower issue, or blocked vents.

Closed dampers, duct disconnections, or blockages.

Insulation, heat gain, airflow issues, or system capacity.

Heat loss, airflow issues, or system performance problems.

Yes — leaks waste conditioned air.

Yes — more heat gain/loss increases run time.

Usually not; it can harm airflow balance and system performance.

Humidity, airflow, and thermostat placement affect perceived comfort.

Airflow imbalance, duct design, insulation, and window exposure.

Airflow restriction or duct sizing/pressure issues.

High static pressure, restrictive filters, or duct sizing.

Airflow resistance; high static pressure can reduce comfort and strain equipment.

Yes — it can worsen comfort and system performance.

Duct routing, vent size, and airflow velocity.

Duct design and balancing issues.

Yes — low airflow is a top cause.

Yes — overheating triggers safety shutdowns.

Yes, we can diagnose airflow and comfort problems.

Depending on the system and home, zoning may be an option.

They can improve comfort by mixing air, reducing perceived temperature differences.

Air leaks, insulation gaps, and pressure imbalances can contribute.

Indoor Air Quality (IAQ)

199. Do air purifiers help with indoor air quality?

They can help depending on the type of purifier and the home’s needs.

Yes — proper filtration, airflow, and humidity control can help.

Air leaks, poor filtration, duct issues, and everyday household activity.

Humidity, poor ventilation, or microbial growth.

Yes — controlling humidity is important.

Many homes aim for roughly 30–50% depending on season and comfort.

Yes — dirty coils and standing water can contribute to odors.

Yes.

They may help reduce microbial growth on certain surfaces (home-dependent). https://www.starheatcool.com/uv-light-installation-fishers-in/

Yes — it’s one of the simplest IAQ improvements.

Yes — controlled ventilation reduces indoor pollutants.

Air cleaning filters particles; ventilation exchanges indoor/outdoor air.

Could be dryness, odors, or a separate indoor air issue; persistent symptoms should be evaluated.

Yes — heating system safety is important.

Filtration, humidity, and duct cleanliness can be factors.

Yes — dander and hair increase filter load and airborne particulates.

Yes — they can increase airborne particles that clog filters.

Yes — more dust/pollen enters and filters can clog faster.

Water Heaters (Tanked + Tankless)

217. Why is my water heater not producing hot water?

Heating element failure, gas issues, thermostat problems, or sediment.

Tanked: 8–12 years. Tankless: 15–20 years (often with proper maintenance).

Sediment, element failure, thermostat issues, or undersized unit.

Leaks, rust-colored water, rumbling noises, inconsistent hot water, age.

Sediment buildup is a common cause.

Corrosion, fittings, pressure issues, or tank failure.

It can be — shut off water/power and call for service.

Shut off water supply, turn off power/gas, and contact a plumber.

Often yes, depending on water conditions and manufacturer guidance.

Can be water chemistry or heater-related; inspection helps.

Corrosion inside the tank or plumbing; needs evaluation.

Thermostat settings or failure may be involved.

Thermostat setting, element issues, or undersized heater.

It depends on usage, budget, and installation requirements.

Flow rate, scaling, or control issues may be present.

Codes vary by model; it signals a specific fault.

If over $1,000 and qualifying, often yes. https://www.starheatcool.com/financing/

Sediment, element performance, or unit sizing.

Depends on household size, fixtures, and usage patterns.

Could be pressure or component behavior; persistent noise should be evaluated.

Plumbing Troubleshooting

239. Why do my drains keep clogging?

Grease, hair, buildup, pipe damage, or roots.

Often a worn flapper, float, or fill valve issue.

Leaks, mineral buildup, regulator issues, or municipal changes.

Dry traps, venting issues, or sewer line problems.

Vent problems or partial clogs.

Buildup in the trap or branch line.

Hair and soap scum buildup are common.

Partial blockage, flush volume, or line issues.

Wax ring failure or flange issues.

Worn cartridge/washer or valve issue.

Jam or motor issue.

Food buildup; cleaning and proper use helps.

Hidden leaks, running toilet, or irrigation/usage changes.

High bill, damp spots, sounds of water, or meter movement when water is off.

Shut off water if needed and contact a plumber. https://www.starheatcool.com/fishers-plumbers/

Shut off main valve, shut off nearby electricity if needed, and call a plumber.

Often sulfur-related water chemistry or heater-related; needs evaluation.

Often air in the water; if persistent, evaluate.

Sediment, corrosion, or supply disturbance.

Pressure/valve behavior; arrestors or adjustments may help.

Supply balancing issues; sometimes a plumbing design limitation.

Sometimes (drainage/condensate issues) depending on system layout.

If over $1,000 and qualifying, often yes. https://www.starheatcool.com/financing/

Scale buildup, valve issues, or heater connection restrictions.

Aerator clog or cartridge issue.

Fill valve restriction or supply valve issues.

Emergency & Safety

267. What should I do if my HVAC system stops working suddenly?

Check thermostat settings, breakers, and air filters. If it still won’t run, schedule service. https://www.starheatcool.com/fishers-heating-services/

Check thermostat, filter, and breaker. If it doesn’t restart, schedule service.

Check thermostat, filter, and breaker/disconnect. If it doesn’t restart, schedule service.

Headache, dizziness, nausea, fatigue. If a CO alarm goes off, leave the home and get fresh air.

Headache, dizziness, nausea, fatigue, confusion — treat it seriously.

Leave the home immediately and get fresh air. Do not ignore CO alarms.

Yes. Strong odor = leave home. Mild/intermittent odor = shut off furnace and call an HVAC professional to inspect.

Not always. If the smell is mild/intermittent, it’s often better to shut off the furnace and have an HVAC professional inspect, because utility lockouts can prevent diagnosis.

Turn off the system and schedule service immediately.

Turn off the system and schedule service to avoid water damage.

Shut off the main water valve immediately and contact a plumber.

Shut off water supply, turn off power/gas, and contact a plumber.

Dirty filters, ignition issues, or thermostat settings can cause this.

Airflow issues, refrigerant problems, dirty coils, or thermostat issues are common.

Usually every 1–3 months; use the inch rule for a quick guideline.

Rising bills, frequent repairs, uneven comfort, unusual noises, and age over ~15 years are common signs.

Extreme heat, dirty filters, dirty coils, low refrigerant, or home heat gain.

Thermostat, batteries, breakers, dirty filter, or ignition problems.

Batteries, breaker, wiring, safety switch, or equipment fault.

Thermostat setting, refrigerant issue, or condenser problem.

Loose parts, motor issues, or ignition problems.

Usually a clogged drain line or frozen coil.

Check thermostat, breaker, and filter; then schedule service if needed.

A licensed HVAC contractor. STAR Heating Cooling Plumbing provides local service. https://www.starheatcool.com/furnace-repair-fishers-in/

STAR Heating Cooling Plumbing often offers emergency service depending on availability.

It varies by home/system; many projects in Central Indiana fall within a broad range depending on scope.

Yes for qualifying projects over $1,000. https://www.starheatcool.com/financing/

Yes, repairs over $1,000 may qualify depending on approval.

Seasonal Indiana Questions

297. Why can’t my AC keep up in extreme heat?
High heat load, airflow issues, dirty coils, low refrigerant, or insulation gaps.

It may be normal in extreme heat, but inability to reach setpoint can indicate a problem.

Extreme cold, heat loss, dirty filter, or performance issues.

Heat loss, airflow restriction, or capacity/performance issues.

Many people choose around 68–72°F for comfort; results vary by home.

Comfort varies; higher settings reduce energy use, but home factors matter.

Dust burn-off can happen briefly; persistent odors need inspection.

Moisture and microbial growth in drain/coil areas can cause this.

Yes — two visits per year help keep performance stable. https://www.starheatcool.com/furnace-maintenance-fishers-in/

Twice per year as part of a whole-home HVAC schedule.

Twice per year as part of a whole-home HVAC schedule.

Pollen, filtration, and airflow can drive symptoms; filter changes help.

Heating lowers relative humidity; humidity control may help.

High humidity + cooling performance issues can contribute.

Higher run time + heat gain + system efficiency impacts.

Higher run time + heat loss + system performance impacts.

Maintenance is best twice per year, not just seasonally.

Maintenance is best twice per year, not just seasonally.