0130M00138S Amana-Goodman Transformer, 208/240V Input & 24V Output, 40VA

The Amana‑Goodman 0130M00138S is a genuine OEM 40VA control transformer designed to convert 208/240 VAC input voltage into 24 VAC control voltage for HVAC equipment. This transformer supplies power to thermostats, gas valves, control boards, relays, contactors, and other low‑voltage components used in Goodman and Amana heating and cooling systems.

Built to factory specifications, the 0130M00138S delivers reliable low‑voltage power and helps maintain proper system operation. It is commonly replaced when a transformer becomes shorted, overheats, produces low secondary voltage, or fails due to a low‑voltage wiring short.

Ideal for furnaces, air handlers, package units, and other HVAC applications requiring a 24‑volt, 40VA control transformer.

 Cross‑Reference (Technician Binder Card Format)

Direct OEM

• 0130M00138S — Amana / Goodman Control Transformer
• 0130M00138 — Previous Goodman Part Number

Compatible Brands

• Goodman
• Amana
• Daikin
• Janitrol

Specifications

• Primary Voltage: 208/240 VAC
• Secondary Voltage: 24 VAC
• VA Rating: 40 VA
• Type: HVAC Control Transformer
• Frequency: 50/60 Hz
• Mounting: OEM Factory Mount

Related Goodman Transformers

(Verify voltage and VA ratings before substitution)

• 0130M00038S
• 0130M00137S
• 0130M00139S
• B1141643
• B1141644

🛠️ Technician Notes

• Supplies 24‑volt power to HVAC control circuits.
• Common failure causes:
  • Thermostat wire short
  • Contactor coil short
  • Damaged low‑voltage wiring
  • Faulty control board
• Always inspect and correct shorts before replacing the transformer.
• Verify 24 VAC output under load after installation.

Common Symptoms of Failure

• No thermostat power
• Blank thermostat display
• No 24V at control board
• Blown low‑voltage fuse
• Contactor not energizing
• Gas valve not opening

Installation Tips

• Verify incoming voltage is 208V or 240V.
• Confirm proper primary tap connections.
• Check secondary voltage before reconnecting controls.
• Replace any damaged low‑voltage wiring.