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OEM Carrier Transformer 40VA 120V/24V for PH13PR04800GAAAA
Carrier

OEM Carrier Transformer 40VA 120V/24V for PH13PR04800GAAAA

SKU: CARRIE-PH13PR04800GAAAA-TRANSFORMER-HT01AW229 Brand: Carrier
✓ Guaranteed to fit PH13PR04800GAAAA — or your money back. Terms

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Texas CMBL #19328542014
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Govt POs Accepted

OEM Carrier Control Transformer 40VA 120V/24V for Model PH13PR04800GAAAA

This OEM control transformer (part number HT01AW229) is the factory-specified replacement for the Carrier PH13PR04800GAAAA heat pump system. The transformer steps down line voltage (120V primary) to the 24V secondary signal used by your thermostat, control board, contactor coils, and all low-voltage safety circuits. When this transformer fails, the entire control circuit goes dead — your thermostat goes blank, the system won't respond to any call for heating or cooling, and you may find a blown fuse on the control board.

  • Specs: 40VA rating | 120V primary / 24V secondary | Direct OEM replacement for Carrier part HT01AW229 | Factory-matched output tolerance for stable low-voltage control
  • OEM vs Generic: OEM transformers are wound to Carrier's exact VA and voltage specifications, ensuring your control board and thermostat receive a clean, stable 24V signal. Generic units may run off-voltage under load, causing intermittent lockouts or nuisance tripped fuses.
  • Install difficulty: 2/5 — Shut off all power to the unit before beginning. Tools needed: flathead and Phillips screwdrivers, wire nuts or terminal connectors, multimeter to verify output voltage after install. Always label or photograph wiring before disconnecting leads.
  • Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PH13PR04800GAAAA heat pump. Verify your unit's existing transformer VA rating and primary/secondary voltages on the data plate before ordering. If you're unsure of fitment, our HVAC parts specialists are available to confirm compatibility before you buy — no guesswork required.

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 PH13PR04800GAAAA?
Yes. This is the factory-specified OEM transformer for the Carrier PH13PR04800GAAAA. 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 PH13PR04800GAAAA?
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
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