What are the specs for this Transformer?

The correct replacement for Carrier model PG8DAA024050ABJA 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 PG8DAA024050ABJA.

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 120V–24V for PG8DAA024050ABJA

Name: OEM Carrier Transformer 40VA 120V–24V for PG8DAA024050ABJA
Brand: Carrier
SKU: CARRIE-PG8DAA024050ABJA-TRANSFORMER-HT01BC116
Price: 47.25 USD
Availability: InStock

SKU: CARRIE-PG8DAA024050ABJA-TRANSFORMER-HT01BC116 Brand: Carrier

✓ Guaranteed to fit PG8DAA024050ABJA — or your money back. Terms

OEM Guaranteed

Same-Day Ship

30-Day Returns

Secure Checkout

Texas CMBL #19328542014

SAM.gov Registered

Govt POs Accepted

OEM Carrier Control Transformer 40VA 120V–24V for Model PG8DAA024050ABJA

This OEM control transformer (part number HT01BC116) is the factory-specified replacement for the Carrier PG8DAA024050ABJA packaged gas furnace. The transformer steps down 120V line voltage to 24V AC to power the entire low-voltage control circuit — including the thermostat, gas valve, inducer relay, and control board. When it fails, nothing in the system responds: no call-for-heat, no fan, no ignition sequence. A blown transformer is often the first component to inspect when a furnace goes completely silent.

Specs: 40VA capacity | 120V primary / 24V secondary | Compatible with standard R and C thermostat wiring | Matches OEM mounting footprint for drop-in replacement
OEM vs Generic: This OEM unit is wound to Carrier's exact VA rating and insulation class, ensuring stable 24V output under full control-circuit load. Generic transformers rated at nominal 40VA frequently sag under peak draw, causing nuisance lockouts and intermittent control faults.
Install difficulty: 2/5 — Disconnect power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter (to verify 24V output post-install), wire nuts or spade connectors. Photograph existing wiring before disconnecting. Inspect low-voltage wiring for shorts before energizing — a shorted control wire will blow the new transformer immediately.
Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PG8DAA024050ABJA packaged gas furnace. Verify your existing transformer's VA rating and primary/secondary voltages on the unit data plate before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — contact us before placing your order.

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 120...

$47.25

Frequently Asked Questions

Does this Transformer fit my Carrier PG8DAA024050ABJA?

Yes. This is the factory-specified OEM transformer for the Carrier PG8DAA024050ABJA. 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 PG8DAA024050ABJA?

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.

Menu

OEM Carrier Transformer 40VA 120V–24V for PG8DAA024050ABJA

OEM Carrier Control Transformer 40VA 120V–24V for Model PG8DAA024050ABJA

Shipping Information

Return Policy

Frequently Asked Questions