LENNOX 39M84 - OEM Replacement Furnace Control Board

FAN CONTROL BOARD

The Lennox 39M84 is a Fan Control Board and compatible with select Lennox furnaces manufactured in 2013. The 39M84 Fan Control Board is designed to control blower speed, ancillary functions and components, and operates in conjunction with other board features to execute the program start-up sequence.

The Lennox 39M84 – OEM Replacement Fan Control Board can be used for at least one of the following Lennox furnace models: Air Handler, Heat Exchanger, Furnace Model Number(s): BA410N080CA0 - BA410N080CA1 - BA410U100GA0 - BA420B080GA0 - BA420B100GA0 - BA420B080NA0 - BA420N100NA0

The OEM Lennox furnace control board is a Fan Control Board for use in the Lennox 709022-28 model only. This furnace control board should be replaced immediately if any of the following conditions exist: Tripped Heat or Fan Limit/Fan Trip, No Fan Speed Indication, Open Control Voltage Line to Fan Inverter, Shorted Control Voltage Line to Motor Inverter, Shorted E2A and/or F3 Power Transistors.

The Lennox 39M84 furnace control board is compatible with the Carrier/Bryant 39M(X)0 furnaces. The part measures 5.5 X 12 and is used for On/Off and system operation. It also allows for FAN ON/OFF with speed control in some models.

The 39M84 is an OEM Lennox replacement control board with a 5-4/5-6 Fan Speed Option.

The main function of a control board is to convert the signal from the thermostat into electrical power for operating the furnace and fan motor. A control board also monitors the air conditioner's cooling performance. Whenever there is a problem with your heating equipment, it is necessary that you contact an expert technician who will enable access to manufacturer's diagnostic trouble codes which are built into modern furnaces and air conditioning equipment.

Used in the Lennox Manufactured 39M84 OEM replacement furnace control board. This part is compatible with the WCI and Trane manufactured 39M84 OEM replacement furnace control board.