What are the specs for this Transformer?

The correct replacement for Goodman model DMP150-52AB — B1141664 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 DMP150-52AB — B1141664.

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 40 VA Transformer for DMP150-52AB — B1141664

Name: OEM Goodman 40 VA Transformer for DMP150-52AB — B1141664
Brand: Goodman
SKU: GOODMAN-9557
Price: 35.95 USD
Availability: InStock

SKU: GOODMAN-9557 Brand: Goodman

$35.95 $46.95

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The Goodman B1141664 is a genuine OEM control transformer built as a direct-fit replacement for the Goodman DMP150-52AB furnace. Rated at a standard 40 VA, it steps line voltage down to the 24 VAC needed to power the thermostat, control board, gas valve, and relays. A dead transformer is a frequent cause of a completely unresponsive furnace — no thermostat display, no ignition sequence, no blower.

Specifications

Output rating: 40 VA
Secondary voltage: 24 VAC
Type: Step-down control transformer
Fits: Goodman DMP150-52AB furnace
Part number: B1141664
Brand: Goodman (OEM)

OEM vs. Generic

The OEM B1141664 delivers the exact primary/secondary voltage taps, VA capacity, and mounting footprint your furnace requires. Undersized generic transformers can overheat or fail to hold in the gas valve and contactor under load. For dependable 24V control power, the factory part is the safe choice.

Installation Difficulty

Intermediate. With power disconnected, label and transfer the primary and secondary leads one at a time to match the original wiring, then confirm 24 VAC output at the secondary before reconnecting components. A multimeter is recommended to verify the new transformer under load.

Compatible with Goodman DMP150-52AB furnaces. Questions about voltage taps or fit? Contact info@nationalhvacparts.com with your model and serial number.

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 40 VA Transformer fo...

$35.95

Frequently Asked Questions

Does this Transformer fit my Goodman DMP150-52AB — B1141664?

Yes. This is the factory-specified OEM transformer for the Goodman DMP150-52AB — B1141664. 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 DMP150-52AB — B1141664?

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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