Same-day shipping on orders before 3PM CST · 15,000+ OEM Parts In Stock · Carrier · Bryant · ICP · Heil · Tempstar
Track Order | 1-800-NHP-HVAC | Trade Accounts

Menu

Home Shop All Account Cart
Home / HVAC 3 Amp Automotive Fuse — Furnace ...

IMAGE COMING SOON

National HVAC Parts

HVAC 3 Amp Automotive Fuse — Furnace Control Board Protection (5-Pack)

SKU: NHVAC-FUSE-3A Brand: National HVAC Parts
$6.99 $10.99

Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

5-pack of 3 amp automotive-style fuses for HVAC furnace control boards. The most common fuse found on furnace circuit boards — protects the 24V control circuit from short circuits and overcurrent.

Symptoms: Thermostat goes blank, furnace completely dead, no 24V at control board. Check fuse on board before replacing entire board.

  • Rating: 3A 250V
  • Type: Automotive blade fuse
  • Quantity: 5-pack
  • Application: Furnace control board protection

Install difficulty: 1/5 — Pull old fuse from board, push in new one. 2 minutes. Pro tip: if fuse keeps blowing, you have a short circuit — don't just keep replacing fuses.

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

Frequently Asked Questions

Does this Fuse fit my National HVAC Parts HVAC 3 Amp Automotive Fuse — Furnace Control Board Protection (5-Pack)?
Yes. This is the factory-specified OEM fuse for the National HVAC Parts HVAC 3 Amp Automotive Fuse — Furnace Control Board Protection (5-Pack). 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 fuse on my National HVAC Parts HVAC 3 Amp Automotive Fuse — Furnace Control Board Protection (5-Pack)?
Refer to your equipment service manual for model-specific steps. General approach: turn off power, photograph connections, remove old part, install new part, restore power and test. For gas components, hire a licensed technician. Email info@nationalhvacparts.com for guidance.
What symptoms mean I need a new fuse?
Common symptoms: unusual noises, intermittent operation, complete failure, or visible damage. Visit our diagnostic hub for symptom-based troubleshooting.
Is this fuse compatible with Bryant or Payne too?
Many National HVAC Parts 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 National HVAC Parts fuse?
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.
Home Shop Search Account Cart
Fitment Guaranteed