Carrier HK42FZ034 - OEM Replacement Furnace Control Board

Circuit Board

The OEM circuit board assembly is for Carrier Furnaces is used to sense and switch the burners. The purpose of the Circuit Board is to sense when the temperature of the furnace heat exchanger reaches a pre-set point and turn on, or off, the power to the gas valve that feeds fuel to the burner tubes.

The Carrier HK42FZ034 is a circuit board used in the Carrier Infinity furnace system. This circuit board is what measures the temperature in your home and controls when your furnace turns on and off. The Carrier HK42FZ034 circuit board should be changed at the first sign of any issues, such as if you notice your home no longer heating properly or if you hear a strange sound coming from your furnace.

The Carrier 42MBHK002 circuit board is an OEM replacement. This control board will help to improve the performance of your furnace and extend its lifespan. It is easy to install into your existing system and has a processor that delivers consistent temperature readings. With a one-year limited warranty, this product is backed by the manufacturer for quality and durability.

This Carrier HK42FZ034 replacement circuit board is designed for use with Carrier heat pump systems and includes all the necessary controls for the furnace. It has a microprocessor that gives you more precise temperature settings and efficiency monitoring with an electronic filter tracking. This eutectic plate carrier furnace control board is also equipped with an improved defrost control, which improves energy savings.

Carrier HK42FZ034 - OEM Replacement Furnace Control Board.   Over-voltage protection. For use with Carrier-Bryant brand gas furnaces only. For replacement of a circuit board that has a failed over-temperature protection feature, or for replacement of a controller where the over temperature protection feature is replaced by an electrician.

Replace the main circuit board for your Carrier Furnace with our direct replacement HK42FZ034 board. This board allows you to control your unit from one of 3 modes, maintaining temperature within a certain range, fan only mode and manual mode which let's you control how your unit runs without the use of a thermostat.

Compatible with Carrier models HK42FZ033, HK42FZ034