OEM Carrier Defrost Control Board HK32EA007 for Model CH13NA04900GABBA

This is the factory OEM defrost control board (part number HK32EA007) designed specifically for the Carrier CH13NA04900GABBA heat pump condenser. The defrost control board manages the automatic defrost cycle, monitoring outdoor coil temperature and system run time to determine when to initiate and terminate defrost. When this board fails, common symptoms include a frozen outdoor coil, the unit running continuously in defrost mode, failure to enter defrost at all, or the system locking out entirely during heating operation — leaving your home cold even when the heat pump appears to be running.

• Specs: OEM Part Number HK32EA007 | Factory-matched defrost timing and temperature thresholds | Compatible with R-410A refrigerant systems | Direct plug-and-play terminal connections for CH13NA04900GABBA wiring harness
• OEM vs Generic: This is a genuine Carrier OEM board — not an aftermarket substitute. OEM boards are programmed with the exact defrost intervals and lockout logic required by your unit. Generic boards may use approximate timing curves that cause short-cycling, coil freeze-up, or premature compressor failure.
• Install Difficulty: 3/5 — Requires turning off power at the disconnect and breaker before beginning. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, multimeter, and phone or camera to photograph all wiring connections before removal. Label all wires prior to disconnecting the old board.
• Warranty: 1-year OEM factory warranty against defects in materials and workmanship. Ships same business day from our climate-controlled warehouse in original manufacturer packaging.

Compatibility: This board is factory-specified for the Carrier CH13NA04900GABBA heat pump condenser unit. Always verify the part number printed on your existing board before ordering. If you are unsure of fitment, our HVAC parts specialists can confirm compatibility using your unit's full model and serial number before you purchase. Order today and receive same-day shipping — get your heat pump back online fast.