OEM Carrier Defrost Control Board HK32EA001 for Model PH10JA02400GADAA

This is the genuine OEM defrost control board (part number HK32EA001), factory-specified for the Carrier PH10JA02400GADAA heat pump. The defrost control board monitors outdoor coil temperature and ambient conditions, then orchestrates timed defrost cycles to prevent ice buildup on the outdoor unit. When this board fails, the heat pump may run in continuous heating mode while icing over, fail to initiate defrost cycles altogether, cycle the reversing valve erratically, or trigger a system lockout fault — all symptoms that lead to reduced efficiency and potential compressor damage if left unaddressed.

• Specs: 24V control voltage | 5A amperage | Single-phase | Board model CEPL130524-01 / CEBD430524-06A | Compatible cross-references: 151922, RT444024F | Replaces Potter & Brumfield relay T9AS2D22-24
• OEM vs Generic: This factory-authorized OEM board is manufactured to exact Carrier tolerances and pre-programmed with the correct defrost timing logic for your unit. Aftermarket boards may use incorrect defrost intervals or mismatched relay ratings, risking compressor overload and voiding equipment warranties.
• Install difficulty: 3/5 — Disconnect power at the breaker and confirm voltage is absent with a multimeter before touching the board. Document all wiring connections with photos prior to removal. Tools needed: Phillips and flathead screwdrivers, 1/4" nut driver, needle-nose pliers, multimeter. A basic understanding of heat pump wiring terminals is recommended; consult a licensed HVAC technician if unsure.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered as a direct OEM replacement for the Carrier PH10JA02400GADAA heat pump. Also fits select 38YCG and 538BNR series units — verify your unit's data plate and existing board model number before ordering. Our technical team is available to confirm fitment before you buy.