FAQ

Frequently Asked Questions (FAQ)

General HVAC Parts Questions

How do I find the correct HVAC replacement part?

The easiest way to find the correct HVAC part is by locating your equipment's model number and serial number. Most model numbers can be found on the unit data plate. If you need assistance, contact our support team with your model number and we'll help identify the correct replacement part.

Can I install HVAC parts myself?

Some HVAC parts can be replaced by homeowners, while others require professional installation. Electrical components, gas furnace parts, refrigerant-related parts, and control boards should typically be installed by a licensed HVAC technician.

Are your HVAC parts genuine OEM parts?

We offer both genuine OEM (Original Equipment Manufacturer) parts and high-quality aftermarket replacement parts. Product listings clearly identify whether a part is OEM or aftermarket.

How do I know if a part is compatible with my HVAC system?

Compatibility depends on your equipment's model number. Always verify compatibility before ordering. If you're unsure, contact us and we'll help confirm the correct part.

What brands do you carry?

We offer parts for many major HVAC brands, including Carrier, Bryant, Trane, American Standard, Goodman, Amana, Lennox, Rheem, Ruud, York, Coleman, Daikin, and more.

Ordering Questions

How quickly will my order ship?

Most orders are processed within 1–2 business days. Shipping times vary depending on product availability, carrier service, and delivery location.

Do you offer expedited shipping?

Yes. Expedited shipping options may be available during checkout for eligible products.

Can I cancel my order?

Orders may typically be canceled before shipment. Once an order has shipped, it will be subject to our Return Policy.

Do you charge sales tax?

Sales tax is collected where required by applicable state and local laws.

Shipping Questions

How long does shipping take?

Most orders arrive within 3–7 business days after processing. Expedited shipping options may reduce delivery time.

Do you ship nationwide?

Yes. We ship throughout the United States.

Do you offer free shipping?

Certain products and promotions may qualify for free shipping. Any free shipping offers will be displayed during checkout.

What should I do if my order arrives damaged?

Returns & Refunds

What is your return policy?

Eligible items may be returned within the timeframe outlined in our Refund Policy. Products must generally be unused and in original packaging.

Are HVAC parts returnable?

Many HVAC parts are returnable, but certain electrical components, special-order items, and installed products may not be eligible for return.

How long does it take to receive a refund?

Refunds are typically processed after the returned product is received and inspected.

Do you charge restocking fees?

TopHVACParts.com does not charge restocking fees on eligible returns, subject to our Return Policy.

Warranty Questions

Do HVAC parts come with a warranty?

Most products are covered by the manufacturer's warranty. Warranty coverage varies by product and manufacturer.

How do I submit a warranty claim?

Contact our support team with your order number, product information, and details about the issue. We will assist you with the warranty process.

Are labor costs covered under warranty?

In most cases, manufacturer warranties do not cover labor, service calls, installation costs, or diagnostic fees.

Homeowner HVAC Questions

Why is my air conditioner not cooling my home?

Common causes include:

Dirty air filters
Faulty capacitors
Low refrigerant levels
Dirty condenser coils
Thermostat issues
Failed contactors

A professional diagnosis may be necessary.

Why is my furnace not turning on?

Possible causes include:

Dirty flame sensor
Faulty ignitor
Thermostat problems
Tripped breaker
Failed control board
Clogged air filter

How often should I replace my HVAC air filter?

Most homeowners should replace filters every 1–3 months, depending on:

Filter type
Pets
Allergies
Household occupancy

What size HVAC filter do I need?

Filter size is typically printed on the existing filter. Common sizes include:

16x20x1
20x25x1
16x25x4
20x20x1

Always verify dimensions before purchasing.

What does a bad HVAC capacitor sound like?

A failing capacitor may cause:

Humming sounds
Clicking noises
Hard starting
Fan motors not running
AC unit not turning on

How long should an HVAC system last?

Average lifespan:

Air Conditioners: 10–15 years
Heat Pumps: 10–15 years
Furnaces: 15–20 years

Proper maintenance can extend equipment life.

What HVAC part fails most often?

Capacitors, contactors, flame sensors, ignitors, blower motors, and thermostats are among the most commonly replaced HVAC parts.

How do I know if my HVAC capacitor is bad?

Signs include:
- AC won't start
- Humming noise
- Fan not spinning
- Intermittent cooling
- Breaker trips
Is it worth repairing a 15-year-old HVAC system?

If repair costs exceed 30–50% of replacement cost, many homeowners consider replacing the system. The best option depends on equipment condition and efficiency.

Why is my thermostat not working?

Possible causes include:
- Dead batteries
- Wiring issues
- Tripped breaker
- Faulty thermostat
- HVAC control board problems

Why is my HVAC system freezing up?