OEM Carrier 24V Furnace Control Transformer for PG8DAA060135AAJA

The control transformer in your Carrier PG8DAA060135AAJA package unit steps the incoming 120V (or 208/240V on some taps) line down to the 24V low-voltage power that runs the thermostat, control board logic, gas valve, contactor coil, and relays. It is small but critical: when it fails, nothing in the control circuit has power. The homeowner symptom is a completely dead system — a blank or unresponsive thermostat, no heat, no cool, no inducer, no blower — even though the breaker is on and 120V is reaching the unit. A transformer that's failing under load can also blow the board's low-voltage fuse repeatedly or hum loudly before it dies. This OEM transformer is rated for the correct VA load (commonly 40 VA on this class of package unit) with the proper primary tap voltages and a secondary that holds a true 24–28V under the combined draw of the gas valve and contactor. Matching the VA rating matters — undersize it and the secondary voltage sags, dropping out the gas valve or contactor mid-cycle. Why OEM matters: generic transformers often use lighter windings and looser VA ratings, so they run hot, sag under load, and shorten the life of everything downstream. A weak secondary voltage chatters the contactor and burns its coil. The OEM unit delivers stable, full-rated 24V. Install difficulty: 2 of 5. Tools: 1/4" nut driver, wire nuts or spade connectors, and a multimeter to confirm 24V on the secondary. SAFETY: kill power at the breaker before wiring — the primary side is full line voltage and will shock or arc badly if live. Ships same business day from our stocked warehouse on orders before 3 PM CST. 1-year OEM warranty and 30-day hassle-free returns on uninstalled parts.

Compatibility

This part is compatible with Carrier model PG8DAA060135AAJA. Always verify the part number against your unit's data plate before ordering.

Why Choose OEM?

OEM parts are manufactured to the exact factory specifications for your unit. Generic aftermarket alternatives may fit physically but often use lower-rated components that reduce equipment life and void manufacturer warranties. When the cost difference between OEM and generic is $10-30, the OEM part is always the smarter investment on a system worth $5,000-$15,000.

Shipping & Returns

Same-day shipping on orders before 3 PM CST. Standard delivery 2-5 business days, express options available at checkout. 30-day hassle-free returns on uninstalled parts — free return shipping included. 1-year OEM factory warranty coverage.