OEM Carrier Furnace Transformer 120V/24V 40VA for Model PG9MTAV36050ABSS

This OEM control transformer is the factory-specified replacement for the Carrier PG9MTAV36050ABSS gas furnace. The transformer steps down line voltage from 120V to the 24V control circuit voltage required by the thermostat, gas valve, inducer, and all low-voltage controls. When it fails, the entire furnace goes completely unresponsive — no thermostat communication, no inducer, no ignition sequence, nothing. A failed transformer is often misdiagnosed as a control board failure, making correct identification critical before ordering parts.

• Specs: 120V primary input | 24V secondary output | 40VA rated | Foot-mounted configuration | OEM part HT01BC117 / Basler Electric BE161840GDD cross-reference
• OEM vs Generic: This OEM transformer is wound to exact factory VA and voltage tolerances. Generic transformers are frequently undersized or wound loosely, causing nuisance tripping under peak control circuit load — especially with multi-stage systems or electronic air cleaners.
• Install difficulty: 2/5 — Shut off power at the breaker and verify zero voltage before touching any wiring. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to confirm 24V output post-install). Always label or photograph wire connections before removal.
• Warranty: 1-year OEM manufacturer warranty. In stock and ships the same business day from our warehouse.

Compatibility: Engineered for the Carrier PG9MTAV36050ABSS gas furnace. Verify your existing transformer's primary voltage (120V), secondary voltage (24V), and VA rating (40VA) against your unit's data plate before ordering. Cross-references include HT01BC117A and Basler Electric BE161840GDD. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy — call or chat today.