Control Circuit Boards

This is a BRAND NEW OEM Lennox/Armstrong Furnace Control Circuit Board. The Part # is 81W03. Thanks for looking and good luck!Function:The control board is the "brain" of your unit, coordinating and executing the operation of other various components by...

This is a BRAND NEW Lennox/Armstrong/Ducane Furnace Integrated Fan Control Circuit Board. The White Rodgers # is 50A55843 and it replaces old Lennox/Armstrong/Ducane part #s 12L42 & 12L4201. Thanks for looking and good luck!Function:The control board is...

This is a BRAND NEW Lennox/Armstrong/Ducane Furnace Integrated Fan Control Circuit Board. The White Rodgers # is 50A55843 and it replaces old Lennox/Armstrong/Ducane part #s 56L85 & 56L8501. Thanks for looking and good luck!Function:The control board is...

This is a BRAND NEW Lennox/Armstrong/Ducane Furnace Intermittent Pilot Ignition Control Circuit Board. This is an aftermarket replacement for Lennox/Armstrong/Ducane part #s 34G66 34G6601 80N92 & 80N9201. Function:The control board is the "brain" of your...

This is a BRAND NEW Lennox/Armstrong/Ducane Furnace Intermittent Pilot Ignition Control Circuit Board. This is an aftermarket replacement for Lennox/Armstrong/Ducane part #s 18G91 18G9101 97H04 & 97H0401. Function:The control board is the "brain" of your...

This is a BRAND NEW Lennox/Armstrong/Ducane Furnace Control Circuit Board. This is an aftermarket replacement for Lennox/Armstrong/Ducane part #s: 17G31 17G3101 34G66 & 34G6601. Function:The control board is the "brain" of your unit, coordinating and...

This is a BRAND NEW Lennox/Armstrong/Ducane Furnace Intermittent Pilot Ignition Control Circuit Board. This is an aftermarket replacement for Lennox/Armstrong/Ducane part #s: 41C86 41C8601 58C01 & 58C0101. Function:The control board is the "brain" of...

This is a BRAND NEW Lennox/Armstrong/Ducane Furnace Intermittent Pilot Ignition Control Circuit Board. This is an aftermarket replacement for Lennox/Armstrong/Ducane part #s 30W33 30W3301 53L90 & 53L9001. Function:The control board is the "brain" of your...

This is a BRAND NEW Lennox/Armstrong/Ducane Furnace Intermittent Pilot Ignition Control Circuit Board. This is an aftermarket replacement for Lennox/Armstrong/Ducane part #s 80N92 80N9201 & 38707B001. Function:The control board is the "brain" of your...

This is a BRAND NEW Lennox/Armstrong/Ducane Furnace Intermittent Pilot Ignition Control Circuit Board. This is an aftermarket replacement for Lennox/Armstrong/Ducane part #s 41K87 41K8701 48K99 & 48K9901. Function:The control board is the "brain" of your...

This is a BRAND NEW Lennox/Armstrong/Ducane Furnace Intermittent Pilot Ignition Control Circuit Board. This is an aftermarket replacement for Lennox/Armstrong/Ducane part #s 74H26 74H2601 93K21 & 93K2101. Function:The control board is the "brain" of your...

This is a BRAND NEW Lennox/Armstrong/Ducane Furnace Intermittent Pilot Ignition Control Circuit Board. This is an aftermarket replacement for Lennox/Armstrong/Ducane part #s 65K93 65K9301 28L49 & 28L4901. Function:The control board is the "brain" of your...