What are the specs for this Transformer?

The correct replacement for Carrier model PF1MNC048T00AAAA 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 Carrier equipment which lists the model number PF1MNC048T00AAAA.

Is this transformer compatible with Bryant or Payne systems too?

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

Carrier

OEM Carrier Transformer 40VA 208/230V–24V for PF1MNC048T00AAAA

Name: OEM Carrier Transformer 40VA 208/230V–24V for PF1MNC048T00AAAA
Brand: Carrier
SKU: CARRIE-PF1MNC048T00AAAA-TRANSFORMER-HT01CN241
Price: 47.25 USD
Availability: InStock

SKU: CARRIE-PF1MNC048T00AAAA-TRANSFORMER-HT01CN241 Brand: Carrier

✓ Guaranteed to fit PF1MNC048T00AAAA — or your money back. Terms

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OEM Carrier 40VA Control Transformer 208/230V–24V (HT01CN241) for Model PF1MNC048T00AAAA

This is the genuine OEM Carrier HT01CN241 control transformer — the factory-specified replacement for the Carrier PF1MNC048T00AAAA fan coil unit. The transformer steps down line voltage (208/230V primary) to the 24V secondary signal required to power the thermostat, control board, and all low-voltage switching circuits throughout your system. When this component fails, the entire control circuit loses power: your thermostat goes dark, relays won't energize, and neither heating nor cooling will operate — even if all other components are functioning perfectly.

Specs: 208/230V Primary | 24V Secondary | 40VA rated | Direct OEM drop-in replacement | Part number HT01CN241
OEM vs Generic: This factory-authorized OEM transformer is wound to exact Carrier specifications and tolerances, ensuring stable 24V output under full load. Aftermarket units frequently under-deliver VA capacity, causing intermittent lockouts, nuisance tripping of the control board fuse, and premature failure of low-voltage components.
Install difficulty: 2/5 — Always shut off power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output post-install). Photograph or label all low-voltage wiring before disconnecting. Standard spade or screw-terminal connections.
Warranty: 1-year OEM manufacturer warranty included. In-stock units ship same business day from our warehouse when ordered before cutoff.

Compatibility: Fits Carrier model PF1MNC048T00AAAA fan coil units requiring the HT01CN241 40VA 208/230V-to-24V control transformer. Verify your unit's data plate voltage rating before ordering — this part is rated for 208/230V primary input only. Our fitment team is available to confirm compatibility before you order. Order now and ship today!

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 $99
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 Carrier Transformer 40VA 208...

$47.25

Frequently Asked Questions

Does this Transformer fit my Carrier PF1MNC048T00AAAA?

Yes. This is the factory-specified OEM transformer for the Carrier PF1MNC048T00AAAA. 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 transformer on my Carrier PF1MNC048T00AAAA?

Difficulty: Medium (30–45 min)
Step 1: Turn off breaker. Step 2: Photo wiring connections. Step 3: Disconnect wires from old transformer. Step 4: Remove mounting hardware. Step 5: Install new transformer, reconnect wires matching voltage ratings. Step 6: Verify 24V output with multimeter.

My thermostat has no power. What failed?

Thermostat with no display = failed 24V transformer (or blown control board fuse). Check the 3A/5A fuse on the control board first ($1–$5 fix). If fuse is good but no 24V output from transformer, replace transformer.

Is this transformer compatible with Bryant or Payne too?

Many Carrier 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 Carrier transformer?

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 Carrier Transformer 40VA 208/230V–24V for PF1MNC048T00AAAA

OEM Carrier 40VA Control Transformer 208/230V–24V (HT01CN241) for Model PF1MNC048T00AAAA

Shipping Information

Return Policy

Frequently Asked Questions