Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.
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This OEM Carrier pressure switch protects the GA2AAD048070AAJA gas furnace by confirming proper draft and venting before the unit is allowed to ignite. It measures the negative pressure produced by the inducer motor and closes its circuit to tell the control board that exhaust airflow is adequate, preventing hazardous combustion if the vent is restricted or blocked. A defective pressure switch is one of the most frequent reasons a furnace fails to start or short-cycles on startup. This direct-fit factory replacement is engineered for the GA2AAD048070AAJA, matching the exact pressure setpoint, port arrangement, and electrical terminals of the original switch. Installation is moderate and typically takes 20 to 30 minutes with basic hand tools: disconnect power, detach the sensing hose and wire leads, install the new switch, and reconnect. Always verify the pressure rating stamped on your old switch before installing. Every in-stock order placed before 3PM CST ships the same day, so you can restore your heat quickly. Genuine Carrier parts ensure precise fit and dependable safety operation.
This part is compatible with Carrier model GA2AAD048070AAJA.
Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.