What are the specs for this Transformer?

The correct replacement for Goodman model CPC048XXX3DXXXBA — 0130M00138S 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 Goodman equipment which lists the model number CPC048XXX3DXXXBA — 0130M00138S.

Is this transformer compatible with Bryant or Payne systems too?

Many Goodman 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.

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Goodman

OEM Goodman 40VA Transformer for CPC048XXX3DXXXBA — 0130M00138S

Name: OEM Goodman 40VA Transformer for CPC048XXX3DXXXBA — 0130M00138S
Brand: Goodman
SKU: GOODMAN-366
Price: 35.94 USD
Availability: InStock

SKU: GOODMAN-366 Brand: Goodman

$35.94 $48.52

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The Goodman 0130M00138S Control Transformer is a genuine OEM component that steps line voltage down to the 24V power that drives your thermostat, contactor coil, and control board on the CPC048XXX3DXXXBA condensing unit. When the transformer fails, the entire low-voltage control circuit goes dead — the thermostat blanks out and the system won't respond to a cooling call.

Specifications

Part Number: 0130M00138S
Rating: 40VA
Primary / Secondary: 240V primary, 24V secondary (Class 2 control)
Brand: Goodman (OEM)
Fits: CPC048XXX3DXXXBA and compatible Goodman/Amana models
Equipment: Central Air Conditioner

OEM vs. Generic

This genuine OEM Goodman transformer is matched to the unit's VA load and primary tap configuration, so it delivers stable 24V without overheating. Generic transformers sometimes ship with incorrect tap voltages or undersized VA ratings that buzz, run hot, or fail early under contactor inrush. Choosing OEM removes the guesswork on tap selection.

Installation Difficulty: Easy to Moderate

Replacement takes roughly 20–30 minutes. Disconnect all power at the breaker and disconnect box first — primary leads carry line voltage. Label the primary and secondary wires before disconnecting, match the new transformer's taps to your supply voltage, and verify 24V on the secondary with a multimeter after restoring power. If you're not comfortable working with line voltage, hire a licensed HVAC professional.

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

OEM Goodman 40VA Transformer for...

$35.94

Frequently Asked Questions

Does this Transformer fit my Goodman CPC048XXX3DXXXBA — 0130M00138S?

Yes. This is the factory-specified OEM transformer for the Goodman CPC048XXX3DXXXBA — 0130M00138S. 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 Goodman CPC048XXX3DXXXBA — 0130M00138S?

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 Goodman 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 Goodman 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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