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OEM Carrier Control Transformer 40VA 208/240V–24V for PY2PPB048130AA
Carrier

OEM Carrier Control Transformer 40VA 208/240V–24V for PY2PPB048130AA

SKU: CARRIE-PY2PPB048130AA-TRANSFORMER-HT01BD209 Brand: Carrier
✓ Guaranteed to fit PY2PPB048130AA — or your money back. Terms

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier 40VA Control Transformer 208/240V to 24V for Model PY2PPB048130AA

This is the factory OEM replacement control transformer for the Carrier PY2PPB048130AA packaged unit. The transformer steps down 208/240V line voltage to the 24V AC signal that powers your thermostat, control board, and all low-voltage components. When this transformer fails, the entire control circuit goes dead — the system will not respond to any thermostat call, and you may measure zero voltage at the 24V secondary terminals or blow the 3A fuse on the control board repeatedly.

  • Specs: OEM Part # HT01BD209 | Input: 208/240V, 50/60 Hz | Output: 24V AC | Power Rating: 40VA | Factory-matched windings and core size
  • OEM vs Generic: The genuine Carrier OEM transformer is wound to exact VA and voltage tolerances. Undersized or off-tolerance aftermarket units can under-drive the control board, cause nuisance fuse failures, or fail prematurely under full heating/cooling demand loads.
  • Install Difficulty: 2/5 — Disconnect power and verify voltage is off before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Photograph all wiring connections before removal. Discharge any capacitors in the unit before reaching inside the panel.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed specifically for the Carrier PY2PPB048130AA packaged unit. Always verify your existing transformer's input voltage, output voltage, and VA rating against your unit's data plate before ordering. Not sure it fits? Contact our parts team — we verify fitment before you buy. Order now and get same-day shipping on in-stock items.

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

Frequently Asked Questions

Does this Transformer fit my Carrier PY2PPB048130AA?
Yes. This is the factory-specified OEM transformer for the Carrier PY2PPB048130AA. 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 PY2PPB048130AA?
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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Mike Rivera
HVAC Parts Specialist — Online