OEM Carrier Control Board CESO130076-00 / HK660003 for Model PH3GNA048000AA

This is the OEM factory-replacement integrated control board for the Carrier PH3GNA048000AA packaged heat pump unit. The control board serves as the central command center for your system — orchestrating ignition sequencing, blower motor staging, safety circuit monitoring, fault code diagnostics, and communication between all major components. When the board fails, symptoms typically include a complete system lockout, no-heat or no-cool condition, intermittent operation, flashing fault codes, or components (blower, compressor, reversing valve) that fail to respond to thermostat calls. Cross-reference part numbers CESO130076-00 and HK660003 both confirm direct fitment for this unit.

• Specs: OEM Carrier integrated control board | Cross-reference: CESO130076-00 / HK660003 | Factory-programmed for Carrier PH3GNA048000AA packaged heat pump | Matches all original connector positions, terminal layout, and control logic
• OEM vs Generic: OEM boards ship pre-programmed with Carrier's exact firmware and safety logic. Aftermarket boards may require manual DIP-switch configuration, lack complete fault-code support, or use lower-grade relay components — all of which can reduce system lifespan or void equipment warranties.
• Install difficulty: 3/5 — Requires disconnecting 120V power and discharging any stored capacitor voltage before access. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone or camera for wiring documentation. Photograph all wire harnesses and connector positions before removal. Label each connector. A basic multimeter is recommended to verify 24V control voltage after reinstall.
• Warranty: 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed specifically for the Carrier PH3GNA048000AA packaged heat pump unit. Always verify part numbers CESO130076-00 and HK660003 against your unit's data plate and existing board labeling before ordering. Not sure it fits? Our HVAC parts specialists verify fitment at no charge — contact us before you order.