What HP motor do I need for my Lennox unit?

The correct replacement for Lennox model OEM Lennox Motor Isolation Spring — 28G23 is this exact part. It is the factory-specified replacement with exact OEM specifications. Using a part with different specifications can cause equipment damage or void your warranty. You can verify this by checking the data plate on your Lennox equipment which lists the model number OEM Lennox Motor Isolation Spring — 28G23.

My AC fan is not spinning. What part do I need?

A fan that does not spin, spins slowly, or makes grinding or squealing noises needs a new motor. Grinding means the bearings have failed. Squealing means the bearings are dry. No spin with a humming sound means the capacitor may be the issue. Check the motor capacitor before replacing the entire motor.

Lennox

OEM Lennox Motor Isolation Spring — 28G23

Name: OEM Lennox Motor Isolation Spring — 28G23
Brand: Lennox
SKU: LNX-28G23
Price: 99.95 USD
Availability: InStock

SKU: LNX-28G23 Brand: Lennox

$99.95 $139.95

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The genuine OEM Lennox 28G23 motor isolation spring cushions the blower or fan motor within its mounting assembly, absorbing vibration and preventing it from transferring into the furnace or air handler cabinet. These springs keep the motor properly aligned and are calibrated to the specific weight and torque of compatible Lennox motors for quiet, stable operation.

Common failure symptoms: A worn, stretched, or broken 28G23 isolation spring often reveals itself through excessive humming or rattling, a noticeable increase in blower noise, cabinet vibration, and in severe cases motor misalignment that accelerates bearing wear.

Why OEM matters: Isolation springs must match the exact spring rate and dimensions to dampen vibration correctly — a generic substitute can allow the motor to sag, contact the housing, or fail early. The factory-spec 28G23 restores proper motor suspension and quiet performance for your Lennox equipment.

Shipping Information

Orders placed before 3PM CST ship same business day
Standard delivery: 2-5 business days
Express shipping available at checkout
Free shipping on orders over $75
Tracking number emailed upon shipment

Return Policy

30-day returns on unused parts in original packaging
Electrical parts (capacitors, contactors, control boards) are final sale once installed
Email info@nationalhvacparts.com to initiate a return
Refunds processed within 5-7 business days

OEM Lennox Motor Isolation Sprin...

$99.95

Frequently Asked Questions

Does this Fan Motor fit my Lennox OEM Lennox Motor Isolation Spring — 28G23?

Yes. This is the factory-specified OEM fan motor for the Lennox OEM Lennox Motor Isolation Spring — 28G23. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.

How do I replace the fan motor on my Lennox OEM Lennox Motor Isolation Spring — 28G23?

Difficulty: Medium-Hard (1–2 hrs)
Step 1: Turn off breaker. Step 2: Note motor specs: HP, RPM, voltage, rotation direction. Step 3: Remove old motor from mounting. Step 4: Transfer fan blade to new motor. Step 5: Mount new motor, reconnect wiring. Step 6: Restore power, verify rotation direction.

My AC fan isn’t spinning. What part do I need?

Fan not spinning, spinning slowly, or making grinding/squealing noises = motor failure. Grinding = bearings failed. Squealing = bearings dry. No spin + hum = check the motor capacitor first before replacing the entire motor.

Is this fan motor compatible with Bryant or Payne too?

Many Lennox parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.

Should I use OEM or aftermarket for my Lennox fan motor?

OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.

How fast does National HVAC Parts ship?

Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.

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OEM Lennox Motor Isolation Spring — 28G23

Shipping Information

Return Policy

Frequently Asked Questions