Description
Product Overview
The HK32EA007 Defrost Control Board is a high-quality replacement for HVACR heat pump systems. This board manages the automatic defrost cycle, ensuring your heat pump operates efficiently even in freezing temperatures. Compatible with Carrier, Bryant, Payne, and ICP brand heat pumps.
Key Features
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Automatic Defrost Control: Initiates and terminates defrost cycles based on time, temperature, and system demand — prevents ice buildup on outdoor coils
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OEM-Compatible Design: Direct replacement for HK32EA007, HK32EA001, 213CEA036000BAAA, and PH13EAZ36000AAAA
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Built-in Diagnostics: LED status indicator for quick troubleshooting of defrost sensor, reversing valve, and compressor contactor circuits
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Durable Construction: Conformal-coated PCB resists moisture, dust, and corrosion for long service life
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Plug-and-Play: Pre-wired terminal block with labeled connections — no programming required
Compatibility
| Brand |
Models / Series |
| Carrier |
25HBC, 25HCC, 25HCB, Performance Series Heat Pumps |
| Bryant |
225B, 226C, 227T, Preferred Series Heat Pumps |
| Payne |
PH13, PH14, PH15 Series Heat Pumps |
| ICP |
Tempstar, Heil, Comfortmaker, Arcoaire Heat Pumps |
Technical Specifications
| Parameter |
Specification |
| Part Number |
HK32EA007 |
| Alternate Part # |
HK32EA001, 213CEA036000BAAA |
| Input Voltage |
208/230V AC, 60Hz |
| Defrost Time |
30/60/90 min (selectable) |
| Defrost Termination |
50°F, 70°F, 80°F, 90°F (selectable) |
Why Replace Your Defrost Control Board?
A failing defrost board causes iced-over outdoor coils, system stuck in defrost mode, auxiliary heat running constantly (high bills), and compressor short-cycling. Replacing the board restores proper operation and protects your compressor from damage.
Frequently Asked Questions
Q: How do I know if my defrost board is bad?
A: Signs include outdoor coil iced over despite above-freezing temperatures, heat pump not switching to defrost mode, defrost cycle running too long or too short, and LED error codes on the board. Test the defrost sensor thermistor first — it's often misdiagnosed.
Q: Is this compatible with my Carrier 25HBC5 heat pump?
A: Yes, the HK32EA007 is the correct replacement board for Carrier 25HBC, 25HCC, and 25HCB series heat pumps manufactured after 2010.
Q: Do I need to program this board?
A: No programming needed. Defrost intervals and termination temperature are set via DIP switches. Default settings work for most installations.
Q: Can I install this myself?
A: Installation requires working with 240V line voltage. We recommend a licensed HVAC technician. The board swap is straightforward: disconnect power, photograph old wiring, transfer wires one-by-one.
Q: What warranty is included?
A: 1-year replacement warranty against manufacturing defects.
