OEM Carrier Furnace Transformer 120V to 24V 40VA for Model UPFLOW080U36M19

The Carrier HT01CN001 is the factory-specified OEM control transformer for the UPFLOW080U36M19 upflow gas furnace. This transformer steps line voltage down from 120V to a 24V control circuit, powering the thermostat, control board, gas valve, and all low-voltage safety circuits. When this transformer fails, the entire control circuit loses power — the thermostat goes dark, the system won't respond to any commands, and you may detect a faint burning smell or hear buzzing from the transformer housing.

• Specs: 120V primary | 24V / 12V secondary | 40VA rated | Direct OEM drop-in replacement | Part# HT01CN001 | Replaces legacy part numbers HT01BJ115, 19EA41612, 19EA42612
• OEM vs Generic: This is a genuine Carrier factory part. OEM transformers are wound and insulated to exact VA and thermal ratings for the UPFLOW080U36M19 platform. Aftermarket transformers frequently underperform on VA capacity, causing nuisance tripping, premature failure, or unsafe overheating.
• Install difficulty: 3/5 — Shut off all power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output post-install), wire labels. Photograph all low-voltage wiring before disconnecting. Confirm incoming line voltage before energizing.
• Warranty: 1-year OEM factory warranty. In stock — ships same business day from our warehouse.

Compatibility: Engineered for the Carrier UPFLOW080U36M19 upflow gas furnace. Verify your unit's data plate confirms 120V line input and 24V control circuit before ordering. Cross-reference your existing transformer label against part number HT01CN001 or superseded numbers HT01BJ115 / 19EA41612 / 19EA42612 to confirm fitment. Questions about compatibility? Our HVAC parts specialists verify fitment before you order — reach out before placing your order.