GrandAire Parts

Grandaire HVAC Parts

Grandaire is a builder-grade HVAC brand under the ICP family — the same engineering and parts ecosystem as Heil, Tempstar, Comfortmaker, and Arcoaire. If you own a Grandaire furnace, heat pump, or air conditioner, you're working with reliable equipment that shares parts across the entire ICP lineup. That means Repair Clinic carries genuine OEM Grandaire parts and cross-compatible ICP family parts for fast, accurate repairs.

When your Grandaire system stops heating or cooling, the issue usually traces back to one of a handful of common failures. Whether it's a furnace that won't ignite, an air conditioner that's lost its cool, or a heat pump running but not delivering, the right OEM part gets you back online without guesswork.

• Furnace won't heat: Hot surface igniters, draft inducer motors, pressure switches, flame sensors, limit switches, control boards, gas valves
• AC or heat pump not cooling: Run capacitors (the #1 failure), contactors, condenser fan motors, control boards, thermistors
• System runs but poor performance: Blower motors, capacitors, air handler controls, airflow sensors
• Heating cycle errors or lockout: Igniter assembly, inducer motor, pressure switch, flame sensor, IFC control board
• No airflow or weak airflow: Blower motor, motor capacitor, limit switch, air filter blockage

Enter your Grandaire model number above to find exact-fit OEM parts. Grandaire equipment often uses the same igniter, capacitor, and control board as Heil and Tempstar — but always verify your model number to ensure compatibility. Repair Clinic stocks genuine OEM Grandaire and ICP family parts with same-day shipping on most orders.

Grandaire HVAC Parts — Frequently Asked Questions

What is Grandaire, and are Grandaire parts the same as Heil or Tempstar?

Grandaire is a builder-grade HVAC brand manufactured by ICP (International Comfort Products), a Carrier subsidiary. Grandaire shares the same engineering platform with Heil, Tempstar, Comfortmaker, and Arcoaire — all ICP family brands. Many parts are interchangeable across these five brands, but model numbers vary. Always enter your specific Grandaire model number to confirm exact compatibility. A Grandaire furnace igniter or capacitor may fit a Heil unit, but the part numbers differ, and OEM sourcing ensures the correct voltage and resistance ratings.

Where do I find my Grandaire model number?

The model number is printed on a rating plate attached to the furnace or air conditioner cabinet. For furnaces, check the front cover or the door panel — it's usually a metal tag with the model number starting with letters like GUD, GMS, or GHD. For air conditioners and heat pumps, the rating plate is on the outdoor condenser unit. Write down the full model number (not just the series) and use it to search Repair Clinic for exact-fit parts. If you can't find the plate, call a Grandaire dealer with your address — they can look up your installed equipment.

What's the most common Grandaire furnace repair?

The hot surface igniter is by far the most common repair. When the igniter glows orange but the burners don't light, or the igniter doesn't glow at all, that's your signal it's time for a new one. It's a $20 to $50 OEM part and a 20-minute repair if you're comfortable removing the access cover. The second most common repair is the draft inducer motor — if you hear rattling or grinding from the furnace at startup, or the pressure switch keeps tripping, the inducer is often the culprit.

My Grandaire AC runs but doesn't cool. What should I check?

The run capacitor is the #1 cause of an AC that runs but doesn't cool. The capacitor starts the compressor and condenser fan motor — when it fails, the motor hums but doesn't turn. It's a $15 to $40 part that you can test with a multimeter if you're handy, or a service tech can confirm it in seconds. The second most common issue is a failed contactor (the relay that switches on/off the compressor) — you'll hear a clicking sound from the outdoor unit. Condenser fan motor failure is third. All three are inexpensive fixes compared to compressor replacement.

Order Grandaire Brand-Level Parts Online

Ordering Grandaire brand-level parts online is simple and helps you find genuine OEM parts for your unit. With same-day shipping on most in-stock items, you'll have your replacement part fast, minimizing downtime. Our model/part number lookup finds the exact OEM part for your unit, and every order is backed by our 365-day return policy and price-match guarantee. Browse our repair help section for troubleshooting tips, part testing guides, and step-by-step installation videos for your specific product.

GrandAire HVAC Model Number: Where to Look

On GrandAire furnaces, check the rating plate on the front cover or inside the access-panel door. For a central air conditioner or heat pump, look for the equipment nameplate on the outdoor condenser cabinet, typically on a side panel. Record the complete model number, including every letter and number, rather than only the series name. Enter it in the model number search to pull up the parts matched to your unit across all categories. This model-based filter helps identify the correct parts for your entire GrandAire system, whether you need a furnace igniter, blower motor, capacitor, control board, or another replacement. It is the quickest way to be sure the part fits before you order.