OEM Carrier Fan Blower Control Board HK61EA006 for Model PF4MNA042000AAAA

This OEM fan blower control board is the factory-specified replacement for the Carrier PF4MNA042000AAAA air handler. The integrated fan control (IFC) board acts as the command center for your air handler — sequencing blower speeds, managing heat/cool delay timings, processing thermostat signals, and triggering fault protection lockouts. When it fails, symptoms typically include a blower that won't start, a system that runs continuously without responding to the thermostat, or a unit locked out with a flashing fault code that won't reset.

• Specs: OEM Part Number HK61EA006 | Factory-matched fan blower control board | Direct drop-in replacement | Compatible with 24V control circuit | Designed for Carrier PF4MNA042000AAAA air handler
• OEM vs Generic: This is a genuine OEM Carrier board with factory firmware, relay ratings, and terminal layout pre-matched to your unit. Aftermarket boards often require jumper reconfiguration, carry looser tolerances, and may not replicate all delay and fault-code logic — increasing the risk of nuisance lockouts or compressor short-cycling.
• Install Difficulty: 3/5 — Intermediate skill level recommended. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, phone/camera for wiring photos. Always disconnect power at the breaker and verify 0V with a multimeter before handling the board. Photograph all wire connections before removal. Snap terminals in firmly and check for any DIP switch or jumper settings on the old board before discarding it.
• Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse when ordered before cutoff.

Compatibility: Engineered specifically for the Carrier PF4MNA042000AAAA air handler. Always cross-reference the OEM part number HK61EA006 against your unit's data plate or existing board label before ordering. Not sure it fits? Our HVAC parts specialists verify fitment before you buy — contact us and we'll confirm compatibility fast.